Apache Tomcat 8 (8.0.38)

Catalina

59961: Add an option to the StandardJarScanner to control whether or not JAR Manifests are scanned for additional class path entries. (markt)
60013: Refactor the previous fix to align the behaviour of the Rewrite Valve with mod_rewite. As part of this, provide an implementation for the B and NE flags and improve the handling for the QSA flag. Includes multiple test cases by Santhana Preethiand a patch by Tiago Oliveira. (markt)
60087: Refactor the web resources handling to use the Tomcat specific war:file:... URL protocol to refer to WAR files and their contents rather than the standard jar:file:... form since some components of the JRE, such as JAR verification, give unexpected results when the standard form is used. A side-effect of the refactoring is that when using packed WARs, it is now possible to reference a WAR and/or specific JARs within a WAR in the security policy file used when running under a SecurityManager. (markt)
60116: Fix a problem with the rewrite valve that caused back references evaluated in conditions to be forced to lower case when using the NC flag. (markt)
Ensure Digester.useContextClassLoader is considered in case the class loader is used. (violetagg)
60117: Ensure that the name of LogLevel is localized when using OneLineFormatter. Patch provided by Tatsuya Bessho. (kfujino)
60146: Improve performance for resource retrieval by making calls to WebResource.getInputStream() trigger caching if the resource is small enough. Patch provided by mohitchugh. (markt)
60151: Improve the exception error messages when a ResourceLink fails to specify the type, specifies an unknown type or specifies the wrong type. (markt)
60167: Ignore empty lines in /etc/passwd files when using the PasswdUserDatabase. (markt)
60170: Exclude the compressed test file index.html.br from RAT analysis. Patch provided by Gavin McDonald. (markt)
When starting web resources, ensure that class resources are only started once. (markt)
Improve the access checks for linked global resources to handle the case where the current class loader is a child of the web application class loader. (markt)
60199: Log a warning if deserialization issues prevent a session attribute from being loaded. (markt)

Coyote

Correctly handle a call to AsyncContext.complete() from a non-container thread when non-blocking I/O is being used. (markt)
Refactor the code that implements the requirement that a call to complete() or dispatch() made from a non-container thread before the container initiated thread that called startAsync() completes must be delayed until the container initiated thread has completed. Rather than implementing this by blocking the non-container thread, extend the internal state machine to track this. This removes the possibility that blocking the non-container thread could trigger a deadlock. (markt)
60123: Avoid potential threading issues that could cause excessively large vales to be returned for the processing time of a current request. (markt)
60174: Log instances of HeadersTooLargeException during request processing. (markt)

Jasper

60101: Remove preloading of the class that was deleted. (violetagg)

Web applications

Expand the documentation for the nested elements within a Resources element to clarify the behaviour of different configuration options with respect to the order in which resources are searched. (markt)
Add an example of using the classesToInitialize attribute of the JreMemoryLeakPreventionListener to the documentation web application. Based on a patch by Cris Berneburg. (markt)
60192: Correct a typo in the status output of the Manager application. Patch provided by Radhakrishna Pemmasani. (markt)

jdbc-pool

Notify jmx when returning the connection that has been marked suspect. (kfujino)
Ensure that the POOL_EMPTY notification has been added to the jmx notification types. (kfujino)
60099: Ensure that use all method arguments as a cache key when using StatementCache. (kfujino)
60139: Correct Javadocs for PoolConfiguration.getValidationInterval and setValidationInterval. Reported by Phillip Webb. (kfujino)

Other

Update the download location for Objenesis. (violetagg)
60164: Replace log4j-core*.jar with log4j-web*.jar since it is log4j-web*.jar that contains the ServletContainerInitializer. (markt)
Add documentation to the bin/catalina.bat script to remind users that environment variables don't affect the configuration of Tomcat when run as a Windows Service. Based upon a documentation patch by James H.H. Lampert. (schultz)
Update the packaged version of the Tomcat Native Library to 1.2.10 to pick up the latest Windows binaries built with OpenSSL 1.0.2j. (markt)

Catalina

57705: Add debug logging for requests denied by the remote host and remote address valves and filters. Based on a patch by Graham Leggett. (markt)
59399: Add a new option to the Realm implementations that ship with Tomcat that allows the HTTP status code used for HTTP -> HTTPS redirects to be controlled per Realm. (markt)
Change the default of the sessionCookiePathUsesTrailingSlash attribute of the Context element to false since the problems caused when a Servlet is mapped to /* are more significant than the security risk of not enabling this option by default. (markt)
Do not attempt to start web resources during a web application's initialisation phase since the web application is not fully configured at that point and the web resources may not be correctly configured. (markt)
59708: Modify the LockOutRealm logic. Valid authentication attempts during the lock out period will no longer reset the lock out timer to zero. (markt)
Improve error handling around user code prior to calling InstanceManager.destroy() to ensure that the method is executed. (markt)
59813: Ensure that circular relations of the Class-Path attribute from JAR manifests will be processed correctly. (violetagg)
Ensure that reading the singleThreadModel attribute of a StandardWrapper via JMX does not trigger initialisation of the associated servlet. With some frameworks this can trigger an unexpected initialisation thread and if initilisation is not thread-safe the initialisation can then fail. (markt)
Compatibility with rewrite from httpd for non existing headers. (jfclere)
By default, treat paths used to obtain a request dispatcher as encoded. This behaviour can be changed per web application via the dispatchersUseEncodedPaths attribute of the Context. (markt)
59839: Apply roleSearchAsUser to all nested searches in JNDIRealm. (fschumacher)
59859: Fix resource leak in WebDAV servlet. Based on patch by Coty Sutherland. (fschumacher)
Provide a mechanism that enables the container to check if a component (typically a web application) has been granted a given permission when running under a SecurityManager without the current execution stack having to have passed through the component. Use this new mechanism to extend SecurityManager protection to the system property replacement feature of the digester. (markt)
When retrieving an object via a ResourceLink, ensure that the object obtained is of the expected type. (markt)
59824: Mark the RewriteValve as supporting async processing by default. (markt)
59862: Allow nested jar files scanning to be filtered with the system property tomcat.util.scan.StandardJarScanFilter.jarsToSkip. Patch is provided by Terence Bandoian. (violetagg)
59866: When scanning WEB-INF/classes for annotations, don't scan the contents of WEB-INF/classes/META-INF (if present) since classes will never be loaded from that location. (markt)
59888: Correctly handle tabs and spaces in quoted version one cookies when using the Rfc6265CookieProcessor. (markt)
59912: Fix an edge case in input stream handling where an IOException could be thrown when reading a POST body. (markt)
59960: Fix Javadoc so it builds with Java 8. Patch by Coty Sutherland. (markt)
59966: Do not start the web application if the error page configuration in web.xml is invalid. (markt)
Switch the CGI servlet to the standard logging mechanism and remove support for the debug attribute. (markt)
Changes to the allowLinking attribute of a StandardRoot instance now invalidate the cache if caching is enabled. (markt)
Add a new initialisation parameter, envHttpHeaders, to the CGI Servlet to mitigate httpoxy (CVE-2016-5388) by default and to provide a mechanism that can be used to mitigate any future, similar issues. (markt)
When adding and removing ResourceLinks dynamically, ensure that the global resource is only visible via the ResourceLinkFactory when it is meant to be. (markt)
60008: When processing CORs requests, treat any origin with a URI scheme of file as a valid origin. (markt)
Improve handling of exceptions during a Lifecycle events triggered by a state transition. The exception is now caught and the component is now placed into the FAILED state. (markt)
60013: Fix encoding issues when using the RewriteValve with UTF-8 query strings or UTF-8 redirect URLs. (markt)
60022: Improve handling when a WAR file and/or the associated exploded directory are symlinked into the appBase. (markt)
Fix a file descriptor leak when reading the global web.xml. (markt)
Consistently decode URL patterns provided via web.xml using the encoding of the web.xml file where specified or UTF-8 where no explicit encoding is specified. (markt)
Make timing attacks against the Realm implementations harder. (schultz)

Coyote

Improve error handling around user code prior to calling InstanceManager.destroy() to ensure that the method is executed. (markt)
Extend synchronization for NIO2 writes to avoid ConcurrentModificationException observed during testing. (markt)
59904: Add a limit (default 200) for the number of cookies allowed per request. Based on a patch by gehui. (markt)
59925: Correct regression in r1628368 and ensure that HTTP separators are handled as configured in the LegacyCookieProcessor. Patch provided by Kyohei Nakamura. (markt)
OpenSSL now disables 3DES by default so reflect this when using OpenSSL syntax to select ciphers. (markt)

Jasper

Improve error handling around user code prior to calling InstanceManager.destroy() to ensure that the method is executed. (markt)
Improve the error handling for custom tags to ensure that the tag is returned to the pool or released and destroyed once used. (markt)
60032: Fix handling of method calls that use varargs within EL value expressions. (markt)
Ignore engineOptionsClass and scratchdir when running under a security manager. (markt)
Fixed StringIndexOutOfBoundsException. Based on a patch provided by wuwen via Github. (violetagg)

WebSocket

Improve error handling around user code prior to calling InstanceManager.destroy() to ensure that the method is executed. (markt)
59908: Ensure that a reason phrase is included in the close message if a session is closed due to a timeout. (markt)

Web Applications

Do not log an additional case of IOExceptions in the error handler for the Drawboard WebSocket example when the root cause is the client disconnecting since the logs add no value. (markt)
59642: Mention the localDataSource in the DataSourceRealm section of the Realm How-To. (markt)
Follow-up to the fix for 59399. Ensure that the new attribute transportGuaranteeRedirectStatus is documented for all Realms. Also document the NullRealm and when it is automatically created for an Engine. (markt)
Fix the description of maxAge attribute in jdbc-pool doc. This attribute works both when a connection is returned and when a connection is borrowed. (kfujino)
59774: Correct the prefix values in the documented examples for configuring the AccessLogValve. Patch provided by Mike Noordermeer. (markt)
59868: Clarify the documentation for the Manager web application to make clearer that the host name and IP address in the server section are the primary host name and IP address. (markt)
MBeans Descriptors How-To is moved to mbeans-descriptors-howto.html. Patch provided by Radoslav Husar. (violetagg)
Update NIO Connector configuration documentation with an information about socket.directSslBuffer. (violetagg)
60034: Correct a typo in the Manager How-To page of the documentation web application. (markt)

Tribes

Add log message when the ping has timed-out. (kfujino)
If the ping message has been received at the AbstractReplicatedMap#leftOver method, ensure that notify the member is alive than ignore it. (kfujino)

jdbc-pool

Fix the duplicated connection release when connection verification failed. (kfujino)
Ensure that do not remove the abandoned connection that has been already released. (kfujino)
In order to avoid the unintended skip of PoolCleaner, remove the check code of the execution interval in the task that has been scheduled. (kfujino)
59850: Ensure that the ResultSet is closed when enabling the StatementCache interceptor. (kfujino)
59923: Reduce the default value of validationInterval in order to avoid the potential issue that continues to return an invalid connection after database restart. (kfujino)
Ensure that the ResultSet is returned as Proxy object when enabling the StatementDecoratorInterceptor. (kfujino)
60043: Ensure that the suspectTimeout works without removing connection when the removeAbandoned is disabled. (kfujino)
Add log message of when returning the connection that has been marked suspect. (kfujino)
Correct Javadoc for ConnectionPool.suspect(). Based on a patch by Yahya Cahyadi. (markt)

Other

59276: Update optional Checkstyle library to 6.17. (kkolinko)
Use the mirror network rather than the ASF master site to download the current ASF dependencies. (markt)
Update the packaged version of the Tomcat Native Library to 1.2.8 to pick up the latest fixes and make 1.2.8 the minimum recommended version. (markt)
59899: Update Tomcat's copy of the Java Persistence annotations to include the changes made in 2.1 / JavaEE 7. (markt)
Fixed typos in mbeans-descriptors.xml files. (violetagg)
Update the internal fork of Commons BCEL to r1757132 to align with the BCEL 6 release. (markt)
Update the internal fork of Commons DBCP2 to r1757164 to pick up a couple of bug fixes. (markt)
Update the internal fork of Commons Codec to r1757174. Code formatting changes only. (markt)
Update the internal fork of Commons FileUpload to afdedc9. This pulls in a fix to improve the performance with large multipart boundaries. (markt)

Catalina

RMI Target related memory leaks are avoidable which makes them an application bug that needs to be fixed rather than a JRE bug to work around. Therefore, start logging RMI Target related memory leaks on web application stop. Add an option that controls if the check for these leaks is made. Log a warning if running on Java 9 with this check enabled but without the command line option it requires. (markt)
Ensure NPE will not be thrown during deployment when scanning jar files without MANIFEST.MF file. (violetagg)
59604: Correct the assumption made in the URL decoding that the default platform encoding is always compatible with ISO-8859-1. This assumption is not always valid, e.g. on z/OS. (markt)
59608: Skip over any invalid Class-Path attribute from JAR manifests. Log errors at debug level due to many bad libraries. (remm)
Fix error message when failed to register MBean. (kfujino)

Coyote

Ensure that requests with HTTP method names that are not tokens (as required by RFC 7231) are rejected with a 400 response. (markt)
When an asynchronous request is processed by the AJP connector, ensure that request processing has fully completed before starting the next request. (markt)
If an async dispatch results in the completion of request processing, ensure that any remaining request body is swallowed before starting the processing of the next request else the remaining body may be read as the start of the next request leading to a 400 response. (markt)

Jasper

59567: Fix NPE scanning webapps for TLDs when an exploded JAR has an empty WEB-INF/classes/META-INF folder. (remm)
Fix a memory leak in the expression language implementation that caused the class loader of the first web application to use expressions to be pinned in memory. (markt)
59640: NPEs with not found TLDs. (remm)
59654: Improve error message when attempting to use a TLD file from an invalid location. Patch provided by Huxing Zhang. (markt)

Web applications

58891: Update the SSL how-to. Based on a suggestion by Alexander Kjäll. (markt)

jdbc-pool

Fix a memory leak with the pool cleaner thread that retained a reference to the web application class loader for the first web application to use a connection pool. (markt)

Other

Update the internal fork of Commons DBCP 2 to r1743696 (2.1.1 plus additional fixes). (markt)
Update the internal fork of Commons Pool 2 to r1743697 (2.4.2 plus additional fixes). (markt)
Update the internal fork of Commons File Upload to r1743698 (1.3.1 plus additional fixes). (markt)
Update the option code coverage tool Cobertura to 2.1.1 so it is easier to compare the change in lines of code between 8.0.x and 9.0.x. (markt)
58626: Add support for a new environment variable (USE_NOHUP) that causes nohup to be used when starting Tomcat. It is disabled by default except on HP-UX where it is enabled by default since it is required when starting Tomcat at boot on HP-UX. (markt)

Catalina

Ensure that annotated web components packed in web fragments will be processed when unpackWARs is enabled. (violetagg)

Catalina

59206: Ensure NPE will not be thrown by o.a.tomcat.util.file.ConfigFileLoader when catalina.base is not specified. (violetagg)
59217: Remove duplication in the recycling of the path in o.a.tomcat.util.http.ServerCookie. Patch is provided by Kyohei Nakamura. (violetagg)
59213: Async dispatches should be based off a wrapped request. (remm)
Ensure that javax.servlet.ServletRequest and javax.servlet.ServletResponse provided during javax.servlet.AsyncListener registration are made available via javax.servlet.AsyncEvent.getSuppliedRequest and javax.servlet.AsyncEvent.getSuppliedResponse (violetagg)
59219: Ensure AsyncListener.onError() is called if an Exception is thrown during async processing. (markt)
59220: Ensure that AsyncListener.onComplete() is called if the async request times out and the response is already committed. (markt)
59226: Process the Class-Path attribute from JAR manifests for JARs on the class path excluding JARs packaged in WEB-INF/lib. (markt)
59255: Fix possible NPE in mapper. (kkolinko/remm)
59256: slf4j-taglib*.jar should not be excluded from the standard JAR scanning by default. (violetagg)
Clarify in the log message that specifying both urlPatterns and value attributes in WebServlet and WebFilter annotations is not allowed. (violetagg)
Ensure the exceptions caused by Valves will be available in the log files so that they can be evaluated when o.a.catalina.valves.ErrorReportValve.showReport is disabled. Patch is provided by Svetlin Zarev. (violetagg)
Fix handling of Cluster Receiver in StoreConfig. The bind and host attributes define as TransientAttribute. (kfujino)
59261: ServletRequest.getAsyncContext() now throws an IllegalStateException as required by the Servlet specification if the request is not in asynchronous mode when called. (markt)
59269: Correct the implementation of PersistentManagerBase so that minIdleSwap functions as designed and sessions are swapped out to keep the active session count below maxActiveSessions. (markt)
59247: Preload ResourceEntry as a workaround for security manager issues on some JVMs. (kkolinko/remm)
Correctly configure the base path for a resources directory provided by an expanded JAR file. Patch provided by hengyunabc. (markt)
Ensure that /WEB-INF/classes is never processed as a web fragment. (markt)
59310: Do not add a Content-Length: 0 header for custom responses to HEAD requests that do not set a Content-Length value. (markt)
Make a web application's CredentialHandler available through a context attribute. This allows a web application to use the same algorithm for validating or generating new stored credentials from cleartext ones. (schultz)
When normalizing paths, improve the handling when paths end with /. or /.. and ensure that input and output are consistent with respect to whether or not they end with /. (markt)
59317: Ensure that HttpServletRequest.getRequestURI() returns an encoded URI rather than a decoded URI after a dispatch. (markt)
Use the correct URL for the fragment when reporting errors processing a web-fragment.xml file from a JAR located in an unpacked WAR. (markt)
Ensure that JarScanner only uses the explicit call-back to process WEB-INF/classes and only when configured to treat the contents of WEB-INF/classes as a possible exploded JAR. (markt)
Remove the java2DDisposerProtection option from the JreMemoryLeakPreventionListener. The leak is fixed in Java 7 onwards and Tomcat 8 requires Java 7 so the option is unnecessary. (markt)
Ensure that the value for the header X-Frame-Options is constructed correctly according to the specification when ALLOW-FROM option is used. (violetagg)
59449: In ContainerBase, ensure that the process to remove a child container is the reverse of the process to add one. Patch provided by Huxing Zhang. (markt)

Coyote

When running on Java 7, exclude DHE ciphers from the default cipher list for JSSE connectors since they use weak 768 bit DH keys and cannot be configured to use more secure keys. (markt)
Add a new environment variable JSSE_OPTS that is intended to be used to pass JVM wide configuration to the JSSE implementation. The default value is -Djdk.tls.ephemeralDHKeySize=2048 which protects against weak Diffie-Hellman keys with Java 8. (markt)
Exclude ciphers that use RSA keys from the default cipher list since they do not support forward secrecy. (markt)
58970: Fix a connection counting bug in the NIO connector that meant some dropped connections were not removed from the current connection count. (markt)
59289: Do not recycle upgrade processors in unexpected close situations. (remm)
59295: Use Locale.toLanguageTag() to construct the Content-Language HTTP header to ensure the locale is correctly represented. Patch provided by zikfat. (markt)
59451: Correct Javadoc for MessageBytes. Patch provided by Kyohei Nakamura. (markt)
59450: Correctly handle the case where the LegacyCookieProcessor is configured with allowHttpSepsInV0 set to false and forwardSlashIsSeparator set to true. Patch provided by Kyohei Nakamura. (markt)

Jasper

When scanning JARs for TLDs, correctly handle the (rare) case where a JAR has been exploded into WEB-INF/classes and the web application is deployed as a packed WAR. (markt)

WebSocket

Ensure that a client disconnection triggers the error handling for the associated WebSocket end point. (markt)
Make WebSocket client more robust when handling errors during the close of a WebSocket session. (markt)

Web applications

Update in the documentation the link to the maven repository where Tomcat snapshot artifacts are deployed. (markt/violetagg)
Clarify in the documentation that calls to ServletContext.log(String, Throwable) or GenericServlet.log(String, Throwable) are logged at the SEVERE level. (violetagg)
Correct a typo in SSL/TLS Configuration How-To. Issue reported via comments.apache.org. (violetagg)

Tribes

Avoid NPE when a proxy node failed to retrieve a backup entry. (kfujino)
Add log of when received an unexpected messages. (kfujino)
Add the flag indicating that member is a localMember. (kfujino)
Fix potential NPE that depends on the setting order of attributes of static member when using the static cluster. (kfujino)
Add get/set method for the channel that is related to ChannelInterceptorBase. (kfujino)
As with the multicast cluster environment, in the static cluster environment, the local member inherits properties from the cluster receiver. (kfujino)
Add get/set method for the channel that is related to each Channel services. (kfujino)
Add name to channel in order to identify channels. In tomcat cluster environment, it is set the cluster name + "-Channel" as default value. (kfujino)
Add the channel name to the thread which is invoked by channel services in order to identify the associated channel. (kfujino)
Ensure that clear the channel instance from channel services when stopping channel. (kfujino)
Implement map state in the replication map. (kfujino)
Ensure that the ping is not executed during the start/stop of the replication map. (kfujino)
In ping processing in the replication map, send not the INIT message but the newly introduced PING message. (kfujino)

Other

59211: Add hamcrest to Eclipse classpath. Patch is provided by Huxing Zhang. (violetagg)
59280: Update the NSIS Installer used to build the Windows Installers to version 2.51. (kkolinko)
Update the packaged version of the Tomcat Native Library to 1.2.7 to pick up the Windows binaries that are based on OpenSSL 1.0.2h and APR 1.5.2. (markt)

Catalina

Correct a regression in the fix for 58867. When configuring a Context to use an external directory for the docBase, and that directory happens to be located along side the original WAR, use the directory as the docBase rather than expanding the WAR into the appBase and using the newly created expanded directory as the docBase. (markt)
58351: Make the server build date and server version number accessible via JMX. Patch provided by Huxing Zhang. (markt)
58988: Special characters in the substitutions for the RewriteValve can now be quoted with a backslash. (fschumacher)
58999: Fix class and resource name filtering in WebappClassLoader. It throws a StringIndexOutOfBoundsException if the name is exactly "org" or "javax". (rjung)
Remove unnecessary code. There is no support for context level cluster. (kfujino)
Make checking for var and map replacement in RewriteValve a bit stricter and correct detection of colon in var replacement. (fschumacher)
Fix the type of InstanceManager attribute of mbean definition of StandardContext. (kfujino)
Refactor the web application class loader to reduce the impact of JAR scanning on the memory footprint of the web application. (markt)
Fix some resource leaks in the error handling for accessing files from JARs and WARs. (markt)
Refactor the JAR and JAR-in-WAR resource handling to reduce the memory footprint of the web application. (markt)
57809: Deprecate the custom context attribute org.apache.tomcat.util.scan.MergedWebXml which will be removed in Tomcat 9. (markt)
59001: Correctly handle the case when Tomcat is installed on a path where one of the segments ends in an exclamation mark. (markt)
Expand the fix for 59001 to cover the special sequences used in Tomcat's custom jar:war: URLs. (markt)
59043: Avoid warning while expiring sessions associated with a single sign on if HttpServletRequest.logout() is used. (markt)
59054: Ensure that using the CrawlerSessionManagerValve in a distributed environment does not trigger an error when the Valve registers itself in the session. (markt)
Storeconfig handling of alternate cookie processors. (markt/remm)
Storeconfig handling for socket properties. (remm)
Log a warning message if a user tries to configure the default session timeout via the deprecated (and ignored) Manager.setMaxInactiveInterval() method. (markt)
Fix incorrect parsing of the NE and NC flags in rewrite rules. (remm)
59065: Correct the timing of the check for colons in paths on non-Windows systems implemented in catalina.sh so it works correctly with Cygwin. Patch provided by Ed Randall. (markt)
When a Host is configured with an appBase that does not exist, create the appBase before trying to expand an external WAR file into it. (markt)
59115: When using the Servlet 3.0 file upload, the submitted file name may be provided as a token or a quoted-string. If a quoted-string, unquote the string before returning it to the user. (markt)
59123: Close NamingEnumeration objects used by the JNDIRealm once they are no longer required. (fschumacher/markt)
59138: Correct a false positive warning for ThreadLocal related memory leaks when the key class but not the value class has been loaded by the web application class loader. (markt)
59145: Don't log an invalid warning when a user logs out of a session associated with SSO. (markt)
59151: Fix a regression in the fix for 56917 that added additional (and arguably unnecessary) validation to the provided redirect location. (markt)
59154: Fix a NullPointerException in the JASSMemoryLoginModue resulting from the introduction of the CredentialHandler to Realms. (schultz/markt)

Coyote

58646: Correct a problem with sendfile that resulted in a Processor being added to the cache twice leading to broken responses. (markt)
59015: Fix potential cause of endless APR Poller loop during shutdown if the Poller experiences an error during the shutdown process. (markt)
Align cipher aliases for kECDHE and ECDHE with the current OpenSSL implementation. (markt)
59081: Retain the user defined cipher order when defining ciphers using the OpenSSL format. (markt)
59089: Correctly ignore HTTP headers that include non-token characters in the header name. (markt)
Add support for additional OpenSSL cipher aliases from OpenSSL master when specifying ciphers using the OpenSSL syntax. (markt)

Jasper

57583: Improve the performance of javax.servlet.jsp.el.ScopedAttributeELResolver when resolving attributes that do not exist. This improvement only works when Jasper is used with with Tomcat's EL implementation. (markt)
58111: Update to the Eclipse JDT Compiler 4.5. (markt)
Add Java 9 support for JSPs. (markt)

WebSocket

59014: Ensure that a WebSocket close message can be sent after a close message has been received. (markt)
Correctly handle compression of partial messages when the final message fragment has a zero length payload. (markt)
59119: Correct read logic for WebSocket client when using secure connections. (markt)
59134: Correct client connect logic for secure connections made through a proxy. (markt)
59189: Explicitly release the native memory held by the Inflater and Deflater when using PerMessageDeflate and the WebSocket session ends. Based on a patch by Henrik Olsson. (markt)

Web applications

Correct an error in the documentation of the expected behaviour for automatic deployment. If a WAR is updated and an expanded directory is present, the directory will always be deleted and recreated by expanding the WAR if unpackWARs is true. (markt)
58935: Remove incorrect references in the documentation to using jar:file: URLs with the Manager application. (markt)
Correct the description of the ServletRequest.getServerPort() in Proxy How-To. Issue reported via comments.apache.org. (violetagg)
Fix a potential indefinite wait in the Comet Chat servlet in the examples web application. (markt)

Tribes

If promoting a proxy node to a primary node when getting a session, notify the change of the new primary node to the original backup node. (kfujino)

Other

58283: Change the default download location for libraries during the build process from /usr/share/java to ${user.home}/temp. Patch provided by Ahmed Hosni. (markt)
59031: When using the Windows uninstaller, do not remove the contents of any directories that have been symlinked into the Tomcat directory structure. (markt)
Update the packaged version of the Tomcat Native Library to 1.2.5 to pick up the Windows binaries that are based on OpenSSL 1.0.2g and APR 1.5.1. (markt)
Modify the default tomcat-users.xml file to make it harder for users to configure the entries intended for use with the examples web application for the Manager application. (markt)

General

Allow to configure multiple JUnit test class patterns with the build property test.name and document the property in BUILDING.txt. (rjung)
58768: Log a warning if a redirect fails because of an invalid location. (markt)

Catalina

Fix class loader decision on the delegation for class loading and resource lookup and make it faster too. (rjung)
58946: Ensure that the request parameter map remains immutable when processing via a RequestDispatcher. (markt)
58827: Deprecate what is left of the JSR 77 implementation. (markt)
58905: Ensure that Tomcat.silence() silences the correct logger and respects the current setting. (markt)

Coyote

New configuration option ajpFlush for the AJP connectors to disable the sending of AJP flush packets. (rjung)

Cluster

Correct a regression in the session attribute filtering that prevented clustering from starting in the default configuration. (kfujino)

WebSocket

Fix a timing issue on session close that could result in an exception being thrown for an incomplete message even through the message was completed. (markt)

Catalina

Correct implementation of validateClientProvidedNewSessionId so client provided session IDs may be rejected if validation is enabled. (markt)
Add path parameter handling to HttpServletRequest.getContextPath(). This is a follow-up to the fix for 57215. (markt)
58692: Make StandardJarScanner more robust. Log a warning if a class path entry cannot be scanned rather than triggering the failure of the web application. Includes a test case written by Derek Abdine. (markt)
58701: Reset the instanceInitialized field in StandardWrapper when unloading a Servlet so that a new instance may be correctly initialized. (markt)
58702: Ensure an access log entry is generated if the client aborts the connection. (markt)
Fixed various issues reported by Findbugs. (violetagg)
58735: Add support for the X-XSS-Protection header to the HttpHeaderSecurityFilter. Patch provided by Jacopo Cappellato. (markt)
58751: Correctly handle the case where an AsyncListener dispatches to a Servlet on an asynchronous timeout and the Servlet uses sendError() to trigger an error page. Includes a test case based on code provided by Andy Wilkinson.(markt)
58765: Change default for mapperContextRootRedirectEnabled to true since this is required for correct session management because of the default for sessionCookiePathUsesTrailingSlash. (markt)
Add the StatusManagerServlet to the list of Servlets that can only be loaded by privileged applications. (markt)
Simplify code and fix messages in org.apache.catalina.core.DefaultInstanceManager class. (kkolinko)
Deprecate InstanceListener, InstanceEvent and InstanceSupport prior to removal in 9.0.x. (markt)
Ensure that the proper file encoding if specified will be used when a readme file is served by DefaultServlet. (violetagg)
Fix declaration of localPort attribute of Connector MBean: it is read-only. (kkolinko)
58766: Make skipping non-class files during annotation scanning faster by checking the file name first. Improve debug logging. (kkolinko)
58809: Correctly recycle cookies when mapping requests for parallel deployment. As a side-effect of this fix, the system property org.apache.tomcat.util.http.ServerCookie.PRESERVE_COOKIE_HEADER is no longer used. From this release, Tomcat will always preserve the cookie header. (markt)
58836: Correctly merge query string parameters when processing a forwarded request where the target includes a query string that contains a parameter with no value. (markt/kkolinko)
Make sure that shared Digester is reset in an unlikely error case in HostConfig.deployWAR(). (kkolinko)
58867: Improve checking on Host start for WAR files that have been modified while Tomcat has stopped and re-expand them if unpackWARs is true. (markt)
Fix a potential JDBC resource leak in DataSourceRealm. (schultz)
58900: Correctly undeploy symlinked resources and prevent an infinite cycle of deploy / undeploy. (markt)
Protect initialization of ResourceLinkFactory when running with a SecurityManager. (kkolinko)
Extend the feature available in the cluster session manager implementations that enables session attribute replication to be filtered based on attribute name to all session manager implementations. Note that configuration attribute name has changed from sessionAttributeFilter to sessionAttributeNameFilter. Apply the filter on load as well as unload to ensure that configuration changes made while the web application is stopped are applied to any persisted data. (markt)
Extend the session attribute filtering options to include filtering based on the implementation class of the value and optional WARN level logging if an attribute is filtered. These options are available for all of the Manager implementations that ship with Tomcat. When a SecurityManager is used filtering will be enabled by default. (markt)

Jasper

Fix handling of missing messages in org.apache.el.util.MessageFactory. (violetagg)

Cluster

In order to avoid that the heartbeat thread and the background thread to run Channel.heartbeat simultaneously, if heartbeatBackgroundEnabled of SimpleTcpCluster set to true, ensure that the heartbeat thread does not start. (kfujino)
Simplify the code of JvmRouteBinderValve.startInternal(). Avoid potential NPE when JvmRouteBinderValve is configured directly at Engine element. (kfujino)

WebSocket

57489: Ensure onClose() is called when a WebSocket connection is closed even if the sending of the close message fails. Includes test cases by Barry Coughlan. (markt)

Web Applications

Add a description of the default value of heartbeatSleeptime attribute and optionCheck attribute in the cluster channel docs. (kfujino)
Correct some typos in the JNDI resources How-To. (markt)
Don't create sessions unnecessarily in the Manager application. (markt)
Don't create sessions unnecessarily in the Host Manager application. (markt)
58723: Clarify documentation and error messages for the text interface of the manager to make clear that version must be used with path when referencing contexts deployed using parallel deployment. (markt)

Tribes

Fix potential NPE in AbstractReplicatedMap.breakdown(). (kfujino)
Add support for the startup notification of local members in the static cluster. (kfujino)
Ignore the unnecessary member remove operation from different domain. (kfujino)
Add support for the shutdown notification of local members in the static cluster. (kfujino)
Ensure that asynchronous session replication thread is a daemon thread. (kfujino)

Other

Remove native code (Windows Service Wrapper, APR/native connector) support for Windows Itanium. (markt)
Update the packaged version of the Tomcat Native Library to 1.2.4 to pick up the Windows binaries that are based on OpenSSL 1.0.2e and APR 1.5.1. (markt)
Update the NSIS Installer used to build the Windows Installers to version 2.50. (markt/kkolinko)
Update optional Checkstyle library to 6.14.1. (kkolinko)

Catalina

34319: Only load those keys in StoreBase.processExpire from JDBCStore, that are old enough, to be expired. Based on a patch by Tom Anderson. (fschumacher)
56917: As per RFC7231 (HTTP/1.1), allow HTTP/1.1 and later redirects to use relative URIs. This is controlled by a new attribute useRelativeRedirects on the Context and defaults to true. (markt)
58629: Allow an embedded Tomcat instance to start when the Service has no Engine configured. (markt)
58635: Enable break points to be set within agent code when running Tomcat with a Java agent. Based on a patch by Huxing Zhang. (markt)
58660: Correct a regression in 8.0.29 caused by the change that moved the redirection for context roots from the Mapper to the Default Servlet. (markt)
Fixed potential NPE in HostConfig while deploying an application. Issue reported by coverity scan. (violetagg)
58655: Fix an IllegalStateException when calling HttpServletResponse.sendRedirect() with the RemoteIpFilter. This was caused by trying to correctly generate the absolute URI for the redirect. With the fix for 56917, redirects may now be relative making the sendRedirect() implementation for the RemoteIpFilter much simpler. This also addresses issues where the redirect may not have behaved as expected when redirecting from http to https to from https to http. (markt)
58657: Exceptions in a Servlet 3.1 ReadListener or WriteListener do not need to be immediately fatal to the connection. Allow an error response to be written. (markt)

Coyote

Improve upgrade context classloader handling by using Context.bind and unbind. (remm)

Jasper

57136#c25: Change default value of quoteAttributeEL setting in Jasper to be true for better compatibility with other implementations and older versions of Tomcat (8.0.26/7.0.64 and earlier). Add command line option -no-quoteAttributeEL in JspC. (kkolinko)

Cluster

Fix potential integer overflow in DeltaSession. Reported by coverity scan. (fschumacher)

WebSocket

55006: The WebSocket client now honors the java.net.java.net.ProxySelector configuration (using the HTTP type) when establishing WebSocket connections to servers. Based on a patch by Niki Dokovski. (markt)
58624: Correct a thread safety issue that meant that blocking message writes could block indefinitely if the WebSocket connection was closed while a message write was in progress. (markt)

Web Applications

58631: Correct the continuation character use in the Windows Service How-To page of the documentation web application. (markt)

Tribes

Ensure that the static member is registered to the add suspect list even if the static member that is registered to the remove suspect list has disappeared. (kfujino)
Correct the warning log of when the member that is not registered in the membership is detected. (kfujino)
When using a static cluster, add the members that have been cached in the membership service to the map members list in order to ensure that the map member is a static member. (kfujino)

jdbc-pool

Correct evaluation of system property org.apache.tomcat.jdbc.pool.onlyAttemptCurrentClassLoader. It was basically ignored before. Reported by coverity scan. (fschumacher)
Fix potential integer overflow in ConnectionPool and PooledConnection. Reported by coverity scan. (fschumacher)

Other

Update optional Checkstyle library to 6.13. (kkolinko)

General

58596: Clarify the description in RUNNING.txt of how environment variables are used. (markt)

Catalina

Extend the fix for 57136 to provide a JSP Servlet initialisation parameter per web application that controls whether or not EL in JSP attributes is processed as if it uses JSP attribute quoting. By default, EL does not use JSP attribute quoting. (markt)
57799: InputStream.available() was causing an IO operation to occur even in blocking mode, which caused problems with NIO2. (remm)
Extend the fix for 58228 to include ServletContext.getRealPath(). (markt)
58486: Protect against two further possible memory leaks associated with XML parsing. (markt)
58490: Fixed NPE thrown when scanning for javax.servlet.ServletContainerInitializer in case the web application is not extracted. (violetagg)
58497: Make AbstractHttp11Processor easy to extend. (markt)
58508: Escape role names when generating associated MBeans in case the role name contains characters not permitted in an MBean name. (markt)
58518: Correct a regression in the fix for 56777 that added support for URIs in config file locations. File paths on Windows could previously be specified with \ or / as the separator. 56777 broke that. (markt)
58519: Fix ISE thrown by web application classloader in some error conditions due to trying to call initCause() on a ClassNotFoundException which is not permitted. (markt)
58534: Removed repeated conditional tests in o.a.tomcat.websocket.pojo.PojoMethodMapping and o.a.tomcat.util.net.AprEndpoint Patch provided by Anthony Whitford. (violetagg)
58535: Use Collections.reverseOrder when a reverse ordering is needed. (violetagg)
58537, 58546: Some of the inner classes in o.a.catalina.valves.ExtendedAccessLogValve and o.a.tomcat.util.net.SecureNio2Channel are made static. Patch provided by Anthony Whitford. (violetagg)
58540: Removed unused code from o.a.catalina.connector.Request. Patch provided by Anthony Whitford. (violetagg)
58541, 58544: It is more efficient to call Integer.toString(int) instead of Integer.valueOf(int).toString() when only a string representation of a primitive is needed. Based on a patch provided by Anthony Whitford. (violetagg)
58541, 58547: It is more efficient to call valueOf(...) instead of Number constructor. Based on a patch provided by Anthony Whitford. (violetagg)
58545: In some use cases it is more efficient to use Map.entrySet() instead of Map.keySet() Based on a patch provided by Anthony Whitford. (violetagg)
Ensure that ServletRequest.getContentLengthLong is used instead of ServletRequest.getContentLength for servlets and valves provided by Tomcat. The API is available since Servlet specification 3.1. (violetagg)
Add a new RestCsrfPreventionFilter that provides basic CSRF protection for REST APIs. (violetagg)
58578: Avoid NPE accessing cookies during access logging for request that had no context mapping. (remm)
Avoid UnsupportedOperationException when releasing an user-provided URLStreamHandlerFactory. Patch provided by Cristian Talau. (violetagg)
58581: If a custom error page fails, fall back to the standard error page rather than throwing an NPE. Based on a patch by Huxing Zhang. (markt)
58582: Combined realm should perform background processing on its sub-realms. Based upon a patch provided by Aidan. (schultz)
Handle the unlikely case where different versions of a web application are deployed with different session settings. (markt)
Add a new Context option, enabled by default, that enables an additional check that a client provided session ID is in use in at least one other web application before allowing it to be used as the ID for a new session in the current web application. (markt)
Add support for DIGEST authentication to the JNDIRealm. Based on a patch by Alexis Hassler. (markt)
58603: Ensure that HttpServletRequest.getRequestURL() returns the correct value when using the RemoteIpFilter. (markt)
Ensure that in an embedded Tomcat the logging configuration is not lost during garbage collection. (violetagg)
Move the functionality that provides redirects for context roots and directories where a trailing / is added from the Mapper to the DefaultServlet. This enables such requests to be processed by any configured Valves and Filters before the redirect is made. This behaviour is configurable via the mapperContextRootRedirectEnabled and mapperDirectoryRedirectEnabled attributes of the Context which may be used to restore the previous behaviour. (markt)

Coyote

Cancel pending blocking IO operation following a timeout in the NIO2 connector. (remm)
Add instance manager support for upgrade handlers, and set context class loader. (remm)
Synchronize OpenSSL to JSSE cipher mapping to recent OpenSSL changes. In particular, TLSv1.0 is now an alias for those ciphers that require TLSv1 and will not work with SSLv3. TLSv1 remains an alias for SSLv3. (markt)

Jasper

Deprecate the STRICT_QUOTE_ESCAPING system property and replace it with an initialisation parameter for the JSP Servlet. This enables per web application control of this configuration setting. (markt)

Cluster

Optimize the session lock range in DeltaManager.requestCompleted. (kfujino)
Enable an explicit configuration of local member in the static cluster membership. (kfujino)

Tribes

Distinguish the handling of the shutdown payload and member verification clearly. When handling shutdown payload, verification completion message is not required. (kfujino)
When starting the StaticMembershipInterceptor, StaticMembershipInterceptor checks the required Interceptors. If the required Interceptor does not exist, it issues warning logs. (kfujino)

WebSocket

Use instance manager for server endpoint instances. (remm)

Web applications

Make it clear in the documentation for the CGI servlet that the debug page is not considered secure and should not be used in production. (markt)
The domain attribute of StaticMember is not required but optional. (kfujino)

jdbc-pool

58489: Correct QueryStatsComparator to hold up the general contract for Comparator. (fschumacher)
When creating a QueryStats object, ensure that maxQueries is checked. If maxQueries is a value less than or equal to 0, QueryStats are never created. (kfujino)

Other

Update optional Checkstyle library to 6.12.1. (kkolinko)
Add support for creating a FindBugs report when building Tomcat. It is disabled by default. (violetagg)

Catalina

Add support for the custom classpath protocol in URLs. It an be used anywhere Tomcat accepts a URL for a configuration parameter. (markt)
56777: Allow file based configuration resources (user database, certificate revocation lists, keystores and trust stores) to be configured using URLs as well as files. (markt)
Perform null-checking on input and stored credentials in all Realms before passing credentials off to CredentialHandlers for matching. (schultz)

Coyote

Add the new ciphers from RFC6655 and RFC7251 to the OpenSSL to JSSE cipher mapping. (markt)
Remove DES, RC2 and RC4 from DEFAULT for the OpenSSL to JSSE cipher mapping to align with the OpenSSL development branch. (markt)

Jasper

Improve the error message when JSP parser encounters an error parsing an attribute value. (markt)

Web applications

58474: Provide a reference to the differences between CATALINA_HOME and CATALINA_BASE in the sample application that is part of the documentation web application. (markt)

Extras

Ensure JULI adapters does not include the LogFactoryImpl class. Patch provided by Benjamin Gandon. (markt)

Catalina

58187: Correct a regression in the fix for 57765 that meant that deployment of web applications deployed via the Manager application was delayed until the next execution of the automatic deployment background process. (markt)
58284: Correctly implement session serialization so non-serializable attributes are skipped with a warning. Patch provided by Andrew Shore. (markt)
58313: Fix concurrent access of encoders map when clearing encoders prior to switch to async. (markt)
58320: Fix concurrent access of request attributes which is possible during asynchronous processing. (markt)
58352: Always trigger a thread dump if Tomcat fails to stop gracefully from catalina.sh even if using -force. Patch provided by Alexandre Garnier. (markt)
58368: Fix a rare data race in the code that obtains the ApplicationFilterFactory instance. (markt)
58369: Fix a rare data race in the code that obtains the CookieProcessor for a StandardContext instance. (markt)
Ensure the JAASRealm uses the configured CredentialHandler. (markt)
58372: Fix rare data races closed and suspended flags that could be triggered by async and/or comet processing. (markt)
58373: Fix rare data race with the application event listeners for StandardContext. (markt)
58374: Fix a rare data race in the AsyncContext implementation for access to the internal Tomcat request object to which it holds a reference. (markt)
58380: Fix two rare data races in the standard session implementation on the flag that tracks if the session is new and on the field that tracks the maximum inactive period. (markt)
58385: Fix a rare data race in the internal flag Tomcat uses to keep track of whether or not a request is being used for Comet processing. (markt)
58394: Fix a rare data race in Mapper when adding or removing a host. (markt)
58398: Fix a rare data race in LifecycleSupport. (markt)
58412: Ensure that the AsyncFileHandler has the source class and method name available for logging. (fschumacher)
58416: Correctly detect when a forced stop fails to stop Tomcat because the Tomcat process is waiting on some system call or is uninterruptible. (markt)
58436: Fix some rare data races in JULI's ClassLoaderLogManager during shutdown. (markt)
58845: Fix off-by one error in calculation of valid characters in a cookie domain. Patch provided by Thorsten Ehlers. (markt)

Coyote

Correct some edge cases in RequestUtil.normalize(). (markt)
58275: The IBM JREs accept cipher suite names starting with TLS_ or SSL_ but when listing the supported cipher suites only the SSL_ version is reported. This can break Tomcat's check that at least one requested cipher suite is supported. Tomcat now includes a work-around so either form of the cipher suite name can be used when running on an IBM JRE. (markt)
58357: For reasons not currently understood when the APR/native connector is used with OpenSSL reads can return an error code when there is no apparent error. This was work-around for HTTP upgrade connections by treating this as EAGAIN. The same fix has now been applied to the standard HTTP connector. (markt)
Minor clean-up in NIO2 SSL handshake code to address some theoretical concurrency issues. (markt)
58367: Fix a rare data race in the code that obtains the reason phrase for a given HTTP response code. (markt)
58370: Fix a rare data race in the connector shutdown code. (markt)
58371: Fix a rare data race when accessing request URI in String form when switching from non-async to async due to early triggering of the gathering of request statistics. (markt)
58375: Fix a rare data race on the internal flag Tomcat uses to mark a response as committed. (markt)
58377: Fix a rare data race on the internal flag Tomcat uses to mark a request as using HTTP keep-alive when switching to asynchronous processing. (markt)
58379: Fix a rare data race on the internal reference Tomcat retains to the socket when switching to asynchronous processing. (markt)
58387: Fix a rare data race when closing Comet connections. (markt)
58388: Fix a data race when determining if Comet processing is occurring on a container or non-container thread. (markt)
58389: Fix a rare data race while shutting down the thread pools on Connector stop. (markt)
Clean up use of error flag on socket wrapper prompted by 58390. (markt)
Remove some unnecessary code from the NIO Poller and fix 58396 as a side-effect. (markt)
57799: Remove useless sendfile check for NIO SSL. (remm)

Jasper

57136: Correct a regression in the previous fix for this issue. \${ should only be an escape for ${ within an EL expression. Within a JSP page \$ should be an escape for $. The EL specification applies when parsing the expression delimited by ${ and }. Parsing of the delimiting ${ and } is the responsibility of the JSP specification. (markt)
58296: Fix a memory leak in the JSP unloading feature that meant that using a value other than -1 for maxLoadedJsps triggered a memory leak once the limit was reached. (markt)
58327: Cache the expression string for value expression literals since it is frequently used and may be expensive to evaluate. Patch provided by Andreas Kohn. (markt)
58340: Improve error reporting for tag files packaged in JARs. (markt)
58424: When parsing TLD files, allow whitespace around boolean configuration values. (schultz)
Fix a possible resource leak reported by coverity scan. (fschumacher)
58427: Enforce the JSP specification defined limitations of which elements are allowed in an implicit.tld file. (markt)
58444: Ensure that JSPs work with any custom base class that meets the requirements defined in the JSP specification without requiring that base class to implement Tomcat specific code. (markt)

Cluster

Fix a default clusterListeners in SimpleTcpCluster. The optimal default value is different for each session manager. ClusterSessionListener is never used in BackupManager. (kfujino)
Correct log messages in case of using BackupManager. (kfujino)

WebSocket

58342: Fix a copy and paste error that meant MessageHandler removal could fail for binary and pong MessageHandlers. Patch provided by DJ. (markt)
Data races detected by RV-Predict, mostly caused by completion handlers running in separate threads. (markt)
58414: Correctly handle sending zero length messages when using per message deflate. (markt)

Web applications

Correct documentation for cluster-howto. (kfujino)
Add missing documentation for property alwaysAddExpires for the LegacyCookieProcessor. (markt)

Tribes

Add support for configurations of ChannelListener and MembershipListener in server.xml. (kfujino)
Correct log messages in case of using ReplicatedMap. (kfujino)
58381: Fix a rare data race in the NioReceiver. (markt)
58382: Fix multiple rare data races in the default membership implementation. (markt)
58383: Fix a data race in SenderState. (markt)
58386: Fix a data race in ObjectReader. (markt)
58391: Fix multiple data races in NonBlockingCoordinator, most of which were associated with ensuring that log messages contained the correct information. (markt)
58392: Fix a data race in DomainFilterInterceptor. (markt)
58393: Fix a data race on the listener in McastService. (markt)
58395: Fix multiple data races in MemberImpl that were likely to cause issues if certain properties were updated concurrently (such updates are unlikely in normal usage). (markt)
Remove some unnecessary code from PooledParallelSender and fix 58397. (markt)

jdbc-pool

Make sure the pool has been properly configured when attributes that related to the pool size are changed via JMX. (kfujino)

Other

Ensure logging works for all tests in a class rather than just the first one executed. (markt)
58344: Add build properties to enable tests to be executed against alternative binaries. Based on a patch by Petr Sumbera. (markt)

Web applications

58255: Document the Semaphore valve. Patch provided by Kyohei Nakamura. (markt)

Catalina

Make the WAR manifest file available for WebResource instances from an unpacked WAR in the same way the manifest is available if the WAR is not unpacked. (markt)
Ensure that only /WEB-INF/classes/ and /WEB-INF/lib/ are excluded from the web resource caching. (Resources loaded from these locations are cached by the web application class loader.) (markt)
57741: Enable the CGI servlet to use the standard error page mechanism. Note that if the CGI servlet's debug init parameter is set to 10 or higher then the standard error page mechanism will be bypassed and a debug response generated by the CGI servlet will be returned instead. (markt)
58031: Make the (first) reason parameter parsing failed available as a request attribute and then use it to provide a better status code via the FailedRequstFilter (if configured). (markt)
58086: Correct a regression in the fix for 58086 that incorrectly handled WAR URLs. (violetagg)
58096: Classes loaded from /WEB-INF/classes/ should use that directory as their code base. (markt)
Fix possible resource leaks by closing streams properly. Issues reported by Coverity Scan. (violetagg)
58116: Fix regression in the fix for 57281 that broke Comet support when running under a security manager. Based on a patch provided by Johno Crawford. (markt)
58125: Avoid a possible ClassCircularityError when running under a security manager. (markt)
58179: Fix a thread safety issues that could mean concurrent threads setting the same attribute on a ServletContext could both see null as the old value. (markt)
Allow web archives bigger than 2G to be deployed using ANT tasks. (violetagg)
58192: Correct a regression in the previous fix for 58023. Ensure that classes are associated with their manifest even if the class file is first read (and cached) without the manifest. (markt)
Fix thread safety issue in the AsyncContext implementation that meant a sequence of start();dispatch(); calls using non-container threads could result in a previous dispatch interfering with a subsequent start. (markt)
58228: Make behaviour of ServletContext.getResource() and ServletContext.getResourceAsStream() consistent with each other and the expected behaviour of the GET_RESOURCE_REQUIRE_SLASH system property. (markt)
58230: Fix input stream corruption if non-blocking I/O is used and the first read is made immediately after the switch to async mode rather than in response to onDataAvaiable() and that read does not read all the available data. (markt)
Ensure that log4javascript*.jar was not excluded from the standard JAR scanning by default. (markt)

Coyote

57943: Prevent the same socket being added to the cache twice. Patch based on analysis by Ian Luo / Sun Qi. (markt)
Add text/javascript,application/javascript to the default list of compressable MIME types. (violetagg)
58103: When pipelining requests, and the previous request was an async request, ensure that the socket is removed from the waiting requests so that the async timeout thread doesn't process it during the next request. (markt)
58151: Correctly handle EOF in the AJP APR/native connector to prevent the connector entering a loop and generate excessive CPU load. (markt)
In the AJP and HTTP NIO connectors, ensure that the socket timeout is correctly set before adding the socket back to the poller for read. (markt)
58157: Ensure that the handling of async timeouts does not result in an unnecessary dispatch to a container thread that could result in the current socket being added to the Poller multiple times with multiple attempts to process the same event for the same socket. (markt)
Correct a couple of edge cases in RequestUtil.normalize(). (markt)

Jasper

58110: Like scriptlet sections, declaration sections of JSP pages have a one-to-one mapping of lines to the generated .java file. Use this information to provide more accurate error messages if a compilation error occurs in a declaration section. (markt)
58119: When tags are compiled they must be placed in the org/apache/jsp/tag/web directory. Correct a regression in the fix for 52725. (violetagg)
Fix a resource leak in JspC identified by Eclipse. (markt)
58178: Expressions in a tag file should use the tag file's PageContext rather than that of the containing page. (markt)
Following on from the fix for 58178, expressions in a tag file should use the tag file's imports rather than those of the containing page. (markt)

WebSocket

58166: Allow applications to send close codes in the range 3000-4999 inclusive. (markt)
58232: Avoid possible NPE when adding endpoints programmatically to the javax.websocket.server.ServerContainer. Based on a patch provided by bastian.(violetagg)

Web applications

Correct the incorrect document of QueryTimeoutInterceptor. The setting value is not in milliseconds but in seconds. (kfujino)
58112: Update the documentation for using the Catalina tasks in an Apache Ant build file. (markt)
Improve the Javadoc for some of the APR socket read functions that have inconsistent behaviour for return values. (markt)

jdbc-pool

58042: The default value of logFailed attribute of SlowQueryReport is changed to false so that the failed queries are not logged by default. (kfujino)
Fix potential NPE in QueryTimeoutInterceptor. (kfujino)
Add support for stopping the pool cleaner via JMX. (kfujino)
The fairness attribute and ignoreExceptionOnPreLoad attribute do not allow a change via JMX. (kfujino)
If the timeBetweenEvictionRunsMillis attribute is changed via jmx, it should restart the pool cleaner because this attribute affects the execution interval of the pool cleaner. (kfujino)
Eliminate the dependence on maxActive of busy queues and idle queue in order to enable the expansion of the pool size via JMX. (kfujino)

Other

Update optional Checkstyle library to 6.8.1. (kkolinko)
Update sample Eclipse IDE configuration to exclude test/webapp* and similar paths from compiler sourcepath. (kkolinko)
Update package renamed Apache Commons Pool to Commons Pool 2.4.2. (markt)
Update package renamed Apache Commons DBCP to Commons DBCP 2.1.1. (markt)
Support the use of the threads attribute on Ant's junit task. Note that using this with a value of greater than one will disable Cobertura code coverage. (markt)

Catalina

57938: Correctly handle empty form fields when a form is submitted as multipart/form-data, the maxPostSize attribute of the Connector has been set to a negative value and the Context has been configured with a value of true for allowCasualMultipartParsing. The meaning of the value zero for the maxPostSize has also been changed to mean a limit of zero rather than no limit to align it with maxSavePostSize and to be more intuitive. (markt)
57977: Correctly bind and unbind the web application class loader during execution of the PersistentValve. (markt)
Remove some unnecessary code from the web application class loader and deprecate the now unused validate() method since the requirements of SRV.10.7.2 are met using cleaner code in loadClass(String, boolean) and filter(). (markt)
Correct a bug that prevented the web application class loader's filter() from working correctly. It only returned true for classes in sub-packages of the listed packages, but not classes located in the packages themselves. (markt)
Add the WebSocket API classes to the list of classes that the web application class loader will always delegate to its parent for loading first. (markt)
58015: Ensure that whenever the web application class loader checks to see if it should delegate first, it also checks the result of the filter() method which may indicate that it should always delegate first for the current class/resource regardless of the value of the delegate configuration option. (markt)
58023: Fix potentially excessive memory usage due to unnecessary caching of JAR manifests in the web application class loader. (markt)
57700: Ensure that Container event ADD_CHILD_EVENT will be sent in all cases. (violetagg)
58086: Ensure that WAR URLs are handled properly when using ANT for web application deployment. Based on a patch provided by Lukasz Jader. (violetagg)
Fix CredentialHandler element handling in storeconfig. (remm)

Coyote

57265: Further fix to address a potential threading issue when sendfile is used in conjunction with TLS. (markt)
57936: Improve robustness of the acceptor thread count parameter for NIO2, since it must be set to 1. Submitted by Oliver Kant. (remm)
57943: Added a work-around to catch ConcurrentModificationExceptions during Poller timeout processing that were causing the Poller thread to stop. The root cause of these exceptions is currently unknown. (markt)
57944: Ensure that if non-blocking I/O listeners are set on a non-container thread that the expected listener events are still triggered. (markt)
Fix possible very long (1000 seconds) timeout with APR/native connector. (markt)
Support "-" separator in the SSLProtocol configuration of the APR/native connector for protocol exclusion. (rjung)
58004: Fix AJP buffering output data even in blocking mode. (remm)

WebSocket

57969: Provide path parameters to POJO via per session javax.websocket.server.ServerEndpointConfig as they vary between different requests. (violetagg)
57974: Session.getOpenSessions should return all sessions associated with a given endpoint instance, rather than all sessions from the endpoint class. (remm)

Web applications

57282: Update request processing sequence diagrams. Updated diagrams provided by Stephen Chen. (markt)
57971: Correct the documentation for the cluster configuration setting recoverySleepTime. (markt)
57758: Add document of testOnConnect attribute in jdbc-pool doc. (kfujino)
Add description of validatorClassName attribute to testXXXX attributes in jdbc-pool docs. (kfujino)

Tribes

Use StringManager to provide i18n support in the org.apache.catalina.tribes packages. (kfujino)
Do not set the nodes that failed to replication to the backup nodes. Ensure that the nodes that the data has been successfully replicated are set to the backup node. (kfujino)
When failed to replication, rather than all member is handled as a failed member, exclude the failure members from backup members. (kfujino)

jdbc-pool

Refactoring of the removeOldest method in SlowQueryReport to behave as expected. (kfujino)
57783: Fix NullPointerException in SlowQueryReport. To avoid this NPE, Refactor SlowQueryReport#removeOldest and handle the abandoned connection properly. (kfujino)
58042: In SlowQueryReportJmx, the LogSlow and logFailed attributes that inherited from SlowQueryReport are used as a condition of whether JMX notifications are sent. (kfujino)
Ensure that specified Boolean attribute values of SlowQueryReport reflect correctly. The LogSlow and the logFailed are not system property, these are attributes of SlowQueryReport. (kfujino)

Other

Update package renamed Apache Commons BCEL to r1682271 to pick up some some code clean up. (markt)
Update package renamed Apache Commons DBCP to r1682314 to pick up the DBCP 2.1 release and additional fixes since then. (markt)
Update package renamed Apache Commons Pool to the 2.4 release. (markt)
Update package renamed Apache Commons File upload to r1682322 to pick up the post 1.3.1 fixes. (markt)
Update package renamed Apache Commons Codec to r1682326. No functional changes. Javadoc only. (markt)
Update optional Checkstyle library to 6.7. (kkolinko)

Catalina

54618: Add a new HttpHeaderSecurityFilter that adds the Strict-Transport-Security, X-Frame-Options and X-Content-Type-Options HTTP headers to the response. (markt)
57875: Add javax.websocket.* to the classes for which the web application class loader always delegates first. (markt)
57871: Ensure that setting the allowHttpSepsInV0 property of a LegacyCookieProcessor to false only prevents HTTP separators from being used without quotes. (markt)
Add a workaround for issues with SPNEGO authentication when running on Java 8 update 40 and later. The workaround should be safe for earlier Java versions but it can be disabled with the applyJava8u40Fix attribute of the SPNEGO authenticator if necessary. (markt)
57926: Restore the original X-Forwarded-By and X-Forwarded-For headers after processing by the RemoteIPValve . (markt)

Coyote

Follow up to previous fix that removed the behavior difference between NIO and NIO2 for SSL, which caused corruption with NIO2. (remm)
57931: Ensure that TLS connections with the NIO or NIO2 HTTP connectors that experience issues during the handshake (e.g. missing or invalid client certificate) are closed cleanly and that the client receives the correct error code rather than simply closing the connection. (markt)

Jasper

56438: Add debug logging to TLD discovery that logs positive and negative results for JARs, resource paths and directories. Patch provided by VIN. (markt)
57802: Correct the default implementation of convertToType() provided by javax.el.ELResolver. (markt)
57887: Fix compilation of recursive tag files packaged in a JAR. (markt)

Cluster

Make sure that stream is closed after using it in DeltaSession.applyDiff(). (kfujino)
Use StringManager to provide i18n support in the org.apache.catalina.ha packages. (kfujino)
Add the context name to log messages when replication context failed to start. (kfujino)

Web applications

57875: Update the web application class loader documentation to reflect the more relaxed approach to SRV.10.7.2 in Tomcat 8 onwards. (markt)
57896: Document system property org.apache.tomcat.util.http.ServerCookie.PRESERVE_COOKIE_HEADER that was introduced in Tomcat 8.0.0. (kkolinko)

Tribes

Ensure that the state transfer flag is updated to true only when the map states have been transferred correctly from existing map members. (kfujino)

Other

Update optional Checkstyle library to 6.6. (kkolinko)

Catalina

57736: Change the format of the Tomcat specific URLs for resources inside JARs that are in turn packed in a WAR. The ^/ sequence has been replaced by */ so that the resulting URLs are compliant with RFC 2396 and do not trigger exceptions when converted to URIs. The old format will continue to be accepted. (markt)
57752: Exclude non-cached resources from the Cache statistics for resource lookups. Patch provided by Adam Mlodzinski. (markt)
Allow logging of the remote port in the access log using the format pattern %{remote}p. (rjung)
57556: Refine the previous fix for this issue so that the real path returned only has a trailing separator if the requested path ended with /. (markt)
57765: When checking last modified times as part of the automatic deployment process, account for the fact that File.lastModified() has a resolution of one second to ensure that if a file has been modified within the last second, the latest version of the file is always used. Note that a side-effect of this change is that files with modification times in the future are treated as if they are unmodified. (markt)
Align redeploy resource modification checking with reload modification checking so that now, in both cases, a change in modification time rather than an increase in modification time is used to determine if the resource has changed. (markt)
Cleanup o.a.tomcat.util.digester.Digester from debug messages that do not give any valuable information. Patch provided by Polina Genova. (violetagg)
57772: When reloading a web application and a directory representing an expanded WAR needs to be deleted, delete the directory after the web application has been stopped rather than before to avoid potential ClassNotFoundExceptions. (markt)
Fix wrong logger name of org.apache.catalina.webresources.StandardRoot. (kfujino)
57801: Improve the error message in the start script in case the PID read from the PID file is already owned by a process. (rjung)
57841: Improve error logging during web application start. (markt)
57856: Ensure that any scheme/port changes implemented by the RemoteIpFilter also affect HttpServletResponse.sendRedirect(). (markt)
57863: Fix the RewriteMap support in RewriteValve that did not use the correct key value to look up entries. Based on a patch provided by Tatsuya Bessho. (markt)

Coyote

57779: When an I/O error occurs on a non-container thread only dispatch to a container thread to handle the error if using Servlet 3+ asynchronous processing. This avoids potential deadlocks if an application is performing I/O on a non-container thread without using the Servlet 3+ asynchronous API. (markt)
Remove the experimental support for SPDY. No current user agent supports the version of SPDY that the experiment targeted. Note: HTTP/2 support is under development for Tomcat 9 and may be back-ported to Tomcat 8 once complete. (markt)
Possible incomplete writes with SSL NIO2. (remm)
Incorrect reads with SSL NIO2 caused by a bad strategy for handling IO differences between NIO and NIO2 that don't seem to be justified. (remm)
After some errors, the pending flags could remain set when using SSL NIO2. (remm)
57833: When using JKS based keystores for NIO or NIO2, ensure that the key alias is always converted to lower case since that is what JKS key stores expect. Based on a patch by Santosh Giri Govind M. (markt)
57837: Add text/css to the default list of compressable MIME types. (markt)

Jasper

57845: Ensure that, if the same JSP is accessed directly and via a declaration in web.xml, updates to the JSP are visible (subject to the normal rules on re-compilation) regardless of how the JSP is accessed. (markt)
57855: Explicitly handle the case where a MethodExpression is invoked with null or the wrong number of parameters. Rather than failing with an ArrayIndexOutOfBoundsException or a NullPointerException throw an IllegalArgumentException with a useful error message. (markt)

Cluster

Avoid unnecessary call of DeltaRequest.addSessionListener() in non-primary nodes. (kfujino)
Add new attribute that send all actions for session across Tomcat cluster nodes. (kfujino)
Remove unused pathname attribute in mbean definition of BackupManager. (kfujino)

WebSocket

57761: Ensure that the opening HTTP request is correctly formatted when the WebSocket client connects to a server root. (remm)
57762: Ensure that the WebSocket client correctly detects when the connection to the server is dropped. (markt)
57776: Revert the 8.0.21 fix for the permessage-deflate implementation and incorrect op-codes since the fix was unnecessary (the bug only affected trunk) and the fix broke rather than fixed permessage-deflate if an uncompressed message was converted into more than one compressed message. (markt)
Fix log name typo in WsRemoteEndpointImplServer class, caused by a copy-paste. (markt/kkolinko)
57788: Avoid NPE when looking up a class hierarchy without finding anything. (remm)

Web applications

57759: Add information to the keyAlias documentation to make it clear that the order keys are read from the keystore is implementation dependent. (markt)
57864: Update the documentation web application to make it clearer that hex values are not valid for cluster send options. Based on a patch by Kyohei Nakamura. (markt)

Tribes

Fix a concurrency issue when a backup message that has all session data and a backup message that has diff data are processing at the same time. This fix ensures that MapOwner is set to ReplicatedMapEntry. (kfujino)

Other

Add missing pom for tomcat-storeconfig. (remm)
Update optional Checkstyle library to 6.5. (kkolinko)
57707: Improve error message when trying to run a release build on a non-Windows platform and Wine is not available. (markt)

Catalina

49785: Enable StartTLS connections for JNDIRealm. (fschumacher)
When docBase refers internal war and unpackWARs is set to false, avoid registration of the invalid redeploy resource that has been added ".war" extension in duplicate. (kfujino)
If WAR exists, it is not necessary to trigger a reload when adding a Directory. (kfujino)
55988: Add support for Java 8 JSSE server-preferred TLS cipher suite ordering. This feature requires Java 8 and is controlled by useServerCipherSuitesOrder attribute on an HTTP connector. Based upon a patch provided by Ognjen Blagojevic. (schultz)
56608: When deploying an external WAR, add watched resources in the expanded directory based on whether the expanded directory is expected to exist rather than if it does exist. (markt)
When triggering a reload due to a modified watched resource, ensure that multiple changed watched resources only trigger one reload rather than a series of reloads. (markt)
57601: Ensure that HEAD requests return the correct content length (i.e. the same as for a GET) when the requested resource includes a resource served by the Default servlet. (jboynes/markt)
57602: Ensure that HEAD requests return the correct content length (i.e. the same as for a GET) when the requested resource includes a resource served by a servlet that extends HttpServlet. (markt)
57621: When an async request completes, ensure that any remaining request body data is swallowed. (markt)
57637: Do not create unnecessary sessions when using PersistentValve. (jboynes/fschumacher)
57645: Correct a regression in the fix for 57190 that incorrectly required the path passed to ServletContext.getContext(String) to be an exact match to a path to an existing context. (markt)
Make sure that unpackWAR attribute of Context is handled correctly in HostConfig. (kfujino)
When deploying a WAR file that contains a context.xml file and unpackWARs is false ignore any context.xml file that may exist in an expanded directory associated with the WAR. (markt)
57675: Correctly quote strings when using the extended access log. (markt)
Enable Tomcat to detect when a WAR file has been changed while Tomcat is not running. Tomcat does this by adding a META-INF/war-tracking file to the expanded directory and setting the last modified time of this file to the last modified time of the WAR. If Tomcat detects a modified WAR via this mechanism the web application will be redeployed (i.e. the expanded directory will be removed and the modified WAR expanded in its place). (markt)
57704: Fix potential NPEs during web application start/stop when org.apache.tomcat.InstanceManager is not initialized. (violetagg)
Use the simplified digest output for digest.bat|sh when generating digests with no salt and a single iteration to make it easier to use with DIGEST authentication. (markt)
Add support for LAST_ACCESS_AT_START system property to SingleSignOn. (kfujino)
Refactor Authenticator implementations to reduce code duplication. (markt)
57724: Handle the case in the CORS filter where a user agent includes an origin header for a non-CORS request. (markt)
When searching for SCIs o.a.catalina.Context.getParentClassLoader will be used instead of java.lang.ClassLoader.getParent. Thus one can provide the correct parent class loader when running embedded Tomcat in other environments such as OSGi. (violetagg)
57743: Fix a locked file / resource leak issue when a JAR is accessed just before or during web application undeploy. Patch provided by Pavel Avgustinov. (markt)

Coyote

57540: Make TLS/SSL protocol available in a new request attribute (org.apache.tomcat.util.net.secure_protocol_version). (Note that AJP connectors will require mod_jk 1.2.41 or later, or an as-yet-unknown version of mod_proxy_ajp, or configure the proxy to send the AJP_SSL_PROTOCOL request attribute to Tomcat. Please see the bug comments for details.) Based upon a patch provided by Ralf Hauser. (schultz)
Fix a cipher ordering issue when using the OpenSSL syntax for JSSE cipher configuration to ensure that ephemeral ECDH with AES is preferred to ephemeral ECDH with anything else. (markt)
57570: Make the processing of trailer headers with chunked input optional and disabled by default. (markt)
57592: Correctly handle the case where an AsyncContext is used for non-blocking I/O and is completed during a write operation. (markt)
57638: Avoid an IllegalArgumentException when an AJP request body chunk larger than the socket read buffer is being read. This typically requires a larger than default AJP packetSize. (markt)
57674: Avoid a BufferOverflowException when an AJP response body chunk larger than the socket write buffer is being written. This typically requires a larger than default AJP packetSize. (markt)
Align the OpenSSL syntax cipher configuration with the OpenSSL 1.0.2 branch. (markt)
Numerous fixes to the APR/native connector to improve robustness. (markt)
Stop caching and re-using SocketWrapper instances. With the introduction of upgrade and non-blocking I/O, I/O can occur on non-container threads. This makes it nearly impossible to track whether a SocketWrapper is still being referenced or not, making re-use a risky proposition. (markt)
Refactor Connector authentication (only used by AJP) into a separate method. (markt)
57708: Implement a new feature for AJP connectors - Tomcat Authorization. If the new tomcatAuthorization attribute is set to true (it is disabled by default) Tomcat will take an authenticated user name from the AJP protocol and use the appropriate Realm for the request to authorize (i.e. add roles) to that user. (markt)
Fix an issue that meant that any pipe-lined data read by Tomcat before an asynchronous request completed was lost during the completion of the asynchronous request. This mean that the pipe-lined request(s) would be lost and/or corrupted. (markt)
Update the minimum recommended version of the Tomcat Native library (if used) to 1.1.33. (markt)

Jasper

57135: Package imports via javax.el.ImportHandler should only import public, concrete classes. (markt)
57583: Cache 'Not Found' results in javax.el.ImportHandler.resolveClass() to save repeated attempts to load classes that are known not to exist to improve performance. (markt)
57626: Correct a regression introduced in the 8.0.16 fix for ensuring Jars were closed after use, that broke recompilation of modified JSPs that depended on a tag file packaged in a Jar. (markt)
57627: Correctly determine last modified times for dependencies when a tag file packaged in a JAR depends on a tag file packaged in a second JAR. (markt)
57647: Ensure INFO message is logged when scanning jars for TLDs if the scan does not find a TLD in any jar. Previously a message would only be logged if a TLD was not found in all scanned jars. (jboynes)
57662: Update all references to the ECJ compiler to version 4.4.2. (violetagg)

Cluster

Remove unnecessary method that always returns true. The domain filtering works on DomainFilterInterceptor. (kfujino)

WebSocket

Correct a bug in the permessage-deflate implementation that meant that the incorrect op-codes were used if an uncompressed message was converted into more than one compressed message. (markt)
57676: List conflicting WebSocket endpoint classes when there is a path conflict. Based upon a patch proposed by yangkun. (schultz)

Web applications

56058: Add links to the AccessLogValve documentation for configuring reverse proxies and/or Tomcat to ensure that the desired information is used entered in the access log when Tomcat is running behind a reverse proxy. (markt)
57587: Update the JNDI Datasource HOWTO for DBCP2. Patch provided by Phil Steitz. (markt)
Remove incorrect note from context configuration page in the documentation web application that stated WAR files located outside the appBase were never unpacked. (markt)
57644: Update examples to use Apache Standard Taglib 1.2.5. (jboynes)
57683: Ensure that if a client aborts their connection to the stock ticker example (the only way a client can disconnect), the example continues to work for existing and new clients. (markt)
Make it clear that when using digested passwords with DIGEST authentication that no salt and only a single iteration must be used when generating the digest. (markt)

Extras

57377: Remove the restriction that prevented the use of SSL when specifying a bind address with the JMXRemoteLifecycleListener. Also enable SSL to be configured for the registry as well as the server. (markt)

Tribes

When a map member has been added to ReplicatedMap, make sure to add it to backup nodes list of all other members. (kfujino)
Make sure that refuse the messages from a different domain in DomainFilterInterceptor. (kfujino)

Other

Update optional Checkstyle library to 6.4.1. (kkolinko)
57703: Update the http-method definition for web applications using a Servlet 2.5 descriptor as per Servlet 2.5 MR 6. (markt)
Update to Tomcat Native Library version 1.1.33 to pick up the Windows binaries that are based on OpenSSL 1.0.1m and APR 1.5.1. (markt)

Coyote

Fix a concurrency issue that meant that a change in socket timeout (e.g. when switching to asynchronous I/O) did not always take effect immediately. (markt)

Catalina

Clarify threaded usage of variables by removing volatile marker in NonceInfo. Issue reported by Coverity Scan. (fschumacher)
57180: Further fixes to support the use of arbitrary HTTP methods with the CORS filter. (markt)
57472: Fix performance regression in resources implementation when signed JARs are used in a web application. (markt)
Warn about problematic setting of appBase. (fschumacher)
Fix exception while authentication in JDBCRealm. (fschumacher)
57534: CORS Filter should only look at media type component of Content-Type request header. (markt)
57556: Align getRealPath() behaviour with that of earlier versions and include a trailing separator if the real path refers to a directory. (markt)
Ensure that Servlet 3.0 async requests where startAsync() is called in one container thread and dispatch() is called in a different container thread complete correctly. (markt)
Ensure that user name checking in the optional SecurityListener is case-insensitive (as documented) and than the case-insensitive comparison is performed using the system default Locale. (markt)
57021: Improve logging in AprLifecycleListener and jni.Library when Tomcat-Native DLL fails to load. Based on a patch by Pravallika Peddi. (markt/kkolinko)

Coyote

Fix several bugs that could cause multiple registrations for write events for a single socket when using Servlet 3.0 async. Typically, the side effects of these multiple registrations would be exceptions appearing in the logs. (markt)
57432: Align SSL_OP_NO_TLSv1_1 and SSL_OP_NO_TLSv1_2 constant values with OpenSSL (they had been swapped). (markt)
57509: Improve length check when writing HTTP/1.1 response headers: reserve space for 4 extra bytes. (kkolinko)
57544: Fix potential infinite loop when preparing a kept alive HTTP connection for the next request. (markt)
57546: Ensure that a dropped network connection does not leave references to the UpgradeProcessor associated with the connection in memory. (markt)
When applying the maxSwallowSize limit to a connection read that many bytes first before closing the connection to give the client a chance to read the response. (markt)
Prevent an async timeout being processed multiple times for the same socket when running on slow and/or heavily loaded systems. (markt)
57581: Change statistics byte counter in coyote Request object to be long to allow values above 2Gb. (kkolinko)
Use the data that supports cipher definition using OpenSSL syntax to improve the quality of values provided for the javax.servlet.request.key_size request attribute. (markt)
Fix a concurrency issue in the APR Poller that meant it was possible under low load for a socket queued to be added to the Poller not to be added for 10 seconds. (markt)

Jasper

57123: Update all references to the ECJ compiler to version 4.4.1. With thanks to Ralph Schaer for uploading the 4.4.1 JAR to Maven Central. (markt)
57564: Make JspC amenable to subclassing. Patch provided by Jan Bartel. (markt)
Simplify code in ProtectedFunctionMapper class of Jasper runtime. (kkolinko)
57574: Do not check existence of a Java package in javax.el.ImportHandler.importPackage(). (kkolinko)

WebSocket

57490: Make it possible to use Tomcat's WebSocket client within a web application when running under a SecurityManager. Based on a patch by Mikael Sterner. (markt)
Add some debug logging to the WebSocket session to track session creation and session closure. (markt)

Web applications

Clarify documentation for useBodyEncodingForURI attribute of a connector. (kkolinko)
Fix possible resource leaks by closing streams properly. Issues reported by Coverity Scan. (fschumacher)
57503: Make clear that the JULI integration for log4j only works with log4j 1.2.x. (markt)
57496: Remove hard-coded URL in JSP SVG example. (markt)

Tribes

Fix a possible deadlock when receiver thread invokes mapMemberAdded() while ping thread invokes memberAlive(). (kfujino)

Other

Enhance bean factory used for JNDI resources. New attribute forceString allows to support non-standard string argument property setters. (rjung)
Assign newly created stream to field instead of leaking it uselessly. Issue reported by Coverity Scan. (fschumacher)
Update optional Checkstyle library to 6.3. (kkolinko)
Guard the digester from MbeansDescriptorsDigesterSource with its own lock object. (fschumacher)
Refactor the unit tests and add some new test properties to make it easier to exclude performance tests and relax timing tests. This is primarily for the ASF CI system where these tests frequently fail. (markt)
57558: Add missing JAR in Ant task definition required by the validate task. (markt)
List names of Testsuites that have failed or skipped tests when running the tests with Ant. (kkolinko)

Catalina

57178: The CORS filter now treats null as a valid origin that matches *. Patch provided by Gregor Zurowski. (markt)
57425: Don't add attributes with null value or name to the replicated context. (fschumacher)
57431: Enable usage of custom class for context creation when using embedded tomcat. (fschumacher)
57446: Ensure that ServletContextListeners that have limited access to ServletContext methods are called with the same ServletContext instance for both contextInitialized() and contextDestroyed(). (markt)
57455: Explicitly block the use of the double-quote character when configuring the common, server and shared class loaders since double-quote is used to quote values that contain commas. (markt)
57461: When an instance of org.apache.catalina.startup.VersionLoggerListener logs the result of System.getProperty("java.home") don't report it in a manner that makes it look like the JAVA_HOME environment variable. (markt)
57476: Ensure the responses written as part of a forward are fully written. This fixes a regression in 8.0.15 caused by the fix for 57252. (markt)
While closing streams for given resources ensure that if an exception happens it will be handled properly. Issue is reported by Coverity Scan. (violetagg)
57481: Fix IllegalStateException at the end of the request when using non-blocking reads with the HTTP BIO connector. (markt)
Change Response to use UEncoder instances with shared safeChars. (fschumacher)
Ensure that when static resources are served from JARs, only static resources are served. (markt)
Allow VersionLoggerListener to log all system properties. This feature is off by default. (kkolinko)

Jasper

Ensure that classes imported via the page directive are made available to the EL environment via the ImportHandler. Issue is reported by Coverity Scan. (violetagg)
57441: Do not trigger an error when using functions defined by lambdas or imported via an ImportHandler in an EL expression in a JSP. (markt)

Cluster

Fix mbean descriptor of ClusterSingleSignOn. (kfujino)
57473: Add sanity check to FarmWebDeployer's WarWatcher to detect suspected incorrect permissions on the watch directory. (schultz)

Tribes

Clarify the handling of Copy message and Copy nodes. (kfujino)
Copy node does not need to send the entry data. It is enough to send only the node information of the entry. (kfujino)
ReplicatedMap should send the Copy message when replicating. (kfujino)
Fix behavior of ReplicatedMap when member has disappeared. If map entry is primary, rebuild the backup members. If primary node of map entry has disappeared, backup node is promoted to primary. (kfujino)

Catalina

Correct a regression in the previous fix for 57252 that broke request listeners for non-async requests that triggered an error that was handled by the ErrorReportingValve. (markt/violetagg)

Coyote

Add flushing to send ack in the NIO2 connector. (remm)

Catalina

57172: Provide a better error message if something attempts to access a resource through a web application class loader that has been stopped. (markt/kkolinko)
57173: Revert the fix for 56953 that broke annotation scanning in some cases. (markt)
57180: Do not limit the CORS filter to only accepting requests that use an HTTP method defined in RFC 7231. (markt)
57190: Fix ServletContext.getContext(String) when parallel deployment is used so that the correct ServletContext is returned. (markt)
57208: Prevent NPE in JNDI Realm when no results are found in a directory context for a user with specified user name. Based on a patch provided by Jason McIntosh. (violetagg)
57209: Add a new attribute, userSearchAsUser to the JNDI Realm. (markt)
57215: Ensure that the result of calling HttpServletRequest.getContextPath() is neither decoded nor normalized as required by the Servlet specification. (markt)
57216: Improve handling of invalid context paths. A context path should either be an empty string or start with a '/' and do not end with a '/'. Invalid context path are automatically corrected and a warning is logged. The null and "/" values are now correctly changed to "". (markt/kkolinko)
Update storeconfig with the CredentialHandler element. (remm)
Correct message that is logged when load-on-startup servlet fails to load. It was logging a wrong name. (kkolinko)
57239: Correct several message typos. Includes patch by vladk. (kkolinko)
Fix closing of Jars during annotation scanning. (schultz/kkolinko)
Fix a concurrency issue in async processing. Ensure that a non-container thread can not change the async state until the container thread has completed. (markt)
57252: Provide application configured error pages with a chance to handle an async error before the built-in error reporting. (markt)
57281: Enable non-public Filter and Servlet classes to be configured programmatically via the Servlet 3.0 API and then used without error when running under a SecurityManager. (markt)
57308: Remove unnecessary calls to System.getProperty() where more suitable API calls are available. (markt)
Add unit tests for RemoteAddrValve and RemoteHostValve. (rjung)
Allow to configure RemoteAddrValve and RemoteHostValve to adopt behavior depending on the connector port. Implemented by optionally adding the connector port to the string compared with the patterns allow and deny. Configured using addConnectorPort attribute on valve. (rjung)
Optionally trigger authentication instead of denial in RemoteAddrValve and RemoteHostValve. This only works in combination with preemptiveAuthentication on the application context. Configured using invalidAuthenticationWhenDeny attribute on valve. (rjung)
Remove the obsolete jndi protocol usage from the scanning process performed by StandardJarScanner. (violetagg)
Prevent file descriptors leak and ensure that files are closed after retrieving the last modification time. (violetagg)
Make o.a.catalina.webresources.StandardRoot easier for extending. (violetagg)
57326: Enable AsyncListener implementations to re-register themselves during AsyncListener.onStartAsync. (markt)
57331: Allow ExpiresFilter to use "year" as synonym for "years" in its configuration. (kkolinko)
Ensure that if the RewriteValve rewrites a request that subsequent calls to HttpServletRequest.getRequestURI() return the undecoded URI. (markt)
Ensure that if the RewriteValve rewrites a request to a non-normalized URI that the URI is normalized before the URI is mapped to ensure that the correct mapping is applied. (markt)
Prevent NPEs being logged during post-processing for requests that have been re-written by the RewriteValve. (markt)
Various StoreConfig improvements including removing a dependency on the StandardServer implementation, improve consistency of behaviour when MBean is not registered and improve error messages when accessed via the Manager application. (markt)
Improve SnoopServlet in unit tests. (rjung)
Add RequestDescriptor class to unit tests. Adjust TestRewriteValve to use RequestDescriptor. (rjung)
Add more AJP unit tests. (rjung)
57363: Log to stderr if LogManager is unable to read configuration files rather than swallowing the exception silently. (markt)

Coyote

Allow HTTP upgrade process to complete without data corruption when additional content is sent along with the upgrade header. (remm)
57187: Regression handling the special * URL. (remm)
57234: Make SSL protocol filtering to remove insecure protocols case insensitive. (markt)
57265: Fix some potential concurrency issues with sendFile and the NIO connector. (markt)
57324: If the client uses Expect: 100-continue and Tomcat responds with a non-2xx response code, Tomcat also closes the connection. If Tomcat knows the connection is going to be closed when committing the response, Tomcat will now also send the Connection: close response header. (markt)
57340: When using Comet, ensure that Socket and SocketWrapper are only returned to their respective caches once on socket close (it is possible for multiple threads to call close concurrently). (markt)
57347: AJP response contains wrong status reason phrase (rjung)
57391: Allow TLS Session Tickets to be disabled when using the APR/native HTTP connector. Patch provided by Josiah Purtlebaugh. (markt)

Jasper

57142: As per the clarification from the JSP specification maintenance lead, classes and packages imported via the page directive must be made available to the EL environment via the ImportHandler. (markt)
57247: Correct the default Java source and target versions in the JspC usage message to 1.7 for Java 7. (markt)
57309: Ensure that the current EL Resolver is given an opportunity to perform type coercion before applying the default EL coercion rules. (markt)
Improve the calculation of the resource's last-modified, performed by JspCompilationContext, in a way to support URLs with protocol different than jar:file. (violetagg)
CVE-2014-7810: Do not use a privileged code block when evaluating EL expressions when running under a security manager, which allowed to bypass code restrictions. (markt)
Fix an issue with BeanELResolver when running under a security manager. Some classes may not be accessible but may have accessible interfaces. (markt)

Cluster

In order to enable define in Cluster element, ClusterSingleSignOn implements ClusterValve. (kfujino)
57338: Improve the ability of the ClusterSingleSignOn valve to handle nodes being added and removed from the Cluster at run time. (markt)

WebSocket

Correct multiple issues with the flushing of batched messages that could lead to duplicate and/or corrupt messages. (markt)
Correctly implement headers case insensitivity. (markt/remm)
Allow optional use of user extensions. (remm)
Allow using partial binary message handlers. (remm)
Limit ping/pong message size. (remm)
Allow configuration of the time interval for the periodic event. (remm)
More accurate annotations processing. (remm)
Allow optional default for origin header in the client. (remm)

Web applications

Update documentation for CGI servlet. Recommend to copy the servlet declaration into web application instead of enabling it globally. Correct documentation for cgiPathPrefix. (kkolinko)
Improve HTML version of build instructions and align with BUILDING.txt. (kkolinko)
Improve Tomcat Manager documentation. Rearrange, add section on HTML GUI, document /expire command and Server Status page. (kkolinko)
57238: Update information on SSL/TLS on Security and SSL documentation pages. Patch by Glen Peterson. (kkolinko)
57245: Correct the reference to allowLinking in the security configuration guide since that attribute has moved from the Context element to the nested Resources element. (markt)
Fix ambiguity of section links on Valves configuration reference page. (kkolinko)
57261: Fix vminfo and threaddump Manager commands to start their output with an "OK" line. Document them. Based on a patch by Oleg Trokhov. (kkolinko)
57267: Document the StoreConfigLifecycleListener and the /save command for the Manager application. (markt)
57323: Correct display of outdated sessions in sessions count listing in Manager application. (kkolinko)
Add document of ClusterSingleSignOn. (kfujino)

Other

When downloading required libraries at build time, use random name for temporary file and automatically create destination directory (base.path). (kkolinko)
Update optional Checkstyle library to 6.2. (kkolinko)
Simplify setproxy task in build.xml. Taskdef there is not needed since Ant 1.8.2. (kkolinko)
Update "ide-eclipse" target in build.xml to create Eclipse project that uses Java 7 compliance settings instead of workspace-wide defaults. (kkolinko)
Update the package renamed copy of Apache Commons Pool 2 to the 2.3 release to pick up various fixes since the 2.2 release including one for a possible infinite loop. (markt)
57285: Restore the manifest entry that marks the Windows uninstaller application as requiring elevated privileges. (markt)
57344: Provide sha1 checksum files for Tomcat downloads. Correct filename patterns for apache-tomcat-*-embed.tar.gz archive to exclude an *.asc file. (kkolinko)

Catalina

43548: Add an XML schema for the tomcat-users.xml file. (markt)
43682: Add support for referring to the current context, host and service name in per Context logging.properties files by using the properties ${classloader.webappName}, ${classloader.hostName} and ${classloader.serviceName}. (markt)
47919: Extend the information logged when Tomcat starts to optionally log the values of command line arguments (enabled by default) and environment variables (disabled by default). Note that the values added to CATALINA_OPTS and JAVA_OPTS environment variables will be logged, as they are used to build up the command line. (markt)
49939: Expose the method that clears the static resource cache for a web application via JMX. (markt)
55951: Allow cookies to use UTF-8 encoded values in HTTP headers. This requires the use of the RFC6265 CookieProcessor. (markt)
55984: Using the allow separators in version 0 cookies option with the legacy cookie processor should only apply to version 0 cookies. Version 1 cookies with values that contain separators should not be affected and should continue to be quoted. (markt)
56393: Add support for RFC6265 cookie parsing and generation. This is currently disabled by default and may be enabled via the CookieProcessor element of a Context. (markt)
56394: Introduce new configuration element CookieProcessor in Context to allow context-specific configuration of cookie processing options. Attributes of Context element that were added in Tomcat 8.0.13 to allow configuration of a new experimental RFC6265 based cookie parser (useRfc6265 and cookieEncoding) are replaced by this new configuration element. (markt)
Improve the previous fix for 56401. Avoid logging version information in the constructor since it then gets logged at undesirable times such as when using StoreConfig. (markt)
56403: Add pluggable password derivation support to the Realms via the new CredentialHandler interface. (markt/schultz)
57016: When using the PersistentValve do not remove sessions from the store when persisting them. (markt)
Deprecate the use of system properties to control cookie parsing and replace them with attributes on the new CookieProcessor that may be configured on a per context basis. (markt)
Correct an edge case and allow a cookie if the value starts with an equals character and the CookieProcessor is not configured to allow equals characters in cookie values but is configured to allow name only cookies. (markt)
57022: Ensure SPNEGO authentication continues to work with the JNDI Realm using delegated credentials with recent Oracle JREs. (markt)
57027: Add additional validation for stored credentials used by Realms when the credential is stored using hex encoding. (markt)
57038: Add a WebResource.getCodeBase() method, implement for all WebResource implementations and then use it in the web application class loader to set the correct code base for resources loaded from JARs and WARs. (markt)
Correct a couple of NPEs in the JNDI Realm that could be triggered with when not specifying a roleBase and enabling roleSearchAsUser. (markt)
Correctly handle relative values for the docBase attribute of a Context. (markt)
Ensure that log messages generated by the web application class loader correctly identify the associated Context when multiple versions of a Context with the same path are present. (markt)
Remove the unnecessary registration of context.xml as a redeploy resource. The context.xml having an external docBase has already been registered as a redeploy resource at first. (kfujino)
57089: Ensure that configuration of a session ID generator is not lost when a web application is reloaded. (markt)
57105: When parsing web.xml do not limit the buffer element of the jsp-property-group element to integer values as the allowed values are kb or none. (markt)
Update the minimum required version of the Tomcat Native library (if used) to 1.1.32. (markt)
Update storeconfig with newly introduced elements: SessionIdGenerator, CookieProcessor, JarScanner and JarScanFilter. (remm)
Throw a NullPointerException if a null string is passed to the write(String,int,int) method of the PrintWriter obtained from the ServletResponse. (markt)
Cookie rewrite flag abbreviation should be CO rather than C. (remm)
57153: When the StandardJarScanner is configured to scan the full class path, ensure that class path entries added directly to the web application class loader are scanned. (markt)
AsyncContext should remain usable until fireOnComplete is called. (remm)
AsyncContext createListener should wrap any instantiation exception using a ServletException. (remm)
57155: Allow a web application to be configured that does not have a docBase on the file system. This is primarily intended for use when embedding. (markt)
Propagate header ordering from fileupload to the part implementation. (remm)

Coyote

53952: Add support for TLSv1.1 and TLSv1.2 for APR connector. Based upon a patch by Marcel Šebek. This feature requires Tomcat Native library 1.1.32 or later. (schultz/jfclere)
Cache the Encoder instances used to convert Strings to byte arrays in the Connectors (e.g. when writing HTTP headers) to improve throughput. (markt)
Disable SSLv3 by default for JSSE based HTTPS connectors (BIO, NIO and NIO2). The change also ensures that SSLv2 is disabled for these connectors although SSLv2 should already be disabled by default by the JRE. (markt)
Disable SSLv3 by default for the APR/native HTTPS connector. (markt)
Do not increase remaining counter at end of stream in IdentityInputFilter. (kkolinko)
Trigger an error if an invalid attempt is made to use non-blocking IO. (markt)
57157: Allow calls to AsyncContext.start(Runnable) during non-blocking IO reads and writes. (markt)
Async state MUST_COMPLETE should still be started. (remm)

Jasper

57099: Ensure that semi-colons are not permitted in JSP import page directives. (markt)
57113: Fix broken package imports in Expression Language when more than one package was imported and the desired class was not in the last package imported. (markt)
57132: Fix import conflicts reporting in Expression Language. (kkolinko)
When coercing an object to a given type, only attempt coercion to an array if both the object type and the target type are an array type. (violetagg/markt)
Improve handling of invalid input to javax.el.ImportHandler.resolveClass(). (markt)
Allow the same class to be added to an instance of javax.el.ImportHandler more than once without triggering an error. The second and subsequent calls for the same class will be ignored. (markt)
57136: Ensure only \${ and \#{ are treated as escapes for ${ and #{ rather than \$ and \# being treated as escapes for $ and # when processing literal expressions in expression language. (markt)
When coercing an object to an array type in Expression Language, handle the case where the source object is an array of primitives. (markt/kkolinko)
Do not throw an exception on missing JSP file servlet initialization. (remm)
57148: When coercing an object to a given type and a PropertyEditor has been registered for the type correctly coerce the empty string to null if the PropertyEditor throws an exception. (kkolinko/markt)
57153: Correctly scan for TLDs located in directories that represent expanded JARs files that have been added to the web application class loader's class path. (markt)
57141: Enable EL in JSPs to refer to static fields of imported classes including the standard java.lang.* imports. (markt)

Cluster

Add support for the SessionIdGenerator to cluster manager template. (kfujino)
Avoid possible integer overflows reported by Coverity Scan. (fschumacher)

WebSocket

57054: Correctly handle the case in the WebSocket client when the HTTP response to the upgrade request can not be read in a single pass; either because the buffer is too small or the server sent the response in multiple packets. (markt)
Extend support for the permessage-deflate extension to the client implementation. (markt)
Fix client subprotocol handling. (remm)
Add null checks for arguments in remote endpoint. (remm/kkolinko)
57091: Work around the behaviour of the Oracle JRE when creating new threads in an applet environment that breaks the WebSocket client implementation. Patch provided by Niklas Hallqvist. (markt)
57118: Ensure that that an EncodeException is thrown by RemoteEndpoint.Basic.sendObject(Object) rather than an IOException when no suitable Encoder is configured for the given Object. (markt)

Web applications

Correct a couple of broken links in the Javadoc. (markt)
Correct documentation for ServerCookie.ALLOW_NAME_ONLY system property. (kkolinko)
57049: Clarified that jvmRoute can be set in 's jvmRoute or in a system property. (schultz)
Correct version of Java WebSocket mentioned in documentation (s/1.0/1.1/). (markt/kkolinko)
Suppress timestamp comments in Javadoc. (kkolinko)
57147: Various corrections to the JDBC Store section of the session manager configuration page of the documentation web application. (markt)

Tribes

45282: Improve shutdown of NIO receiver so that sockets are closed cleanly. (fhanik/markt)

jdbc-pool

57005: Fix javadoc errors when building with Java 8. Patch provided by Pierre Viret. (markt)
57079: Use Tomcat version number for jdbc-pool module when building and shipping the module as part of Tomcat. (markt)
Fix broken overview page in javadoc generated via "javadoc" task in jdbc-pool build.xml file. (kkolinko)

Other

56079: The uninstaller packaged with the Apache Tomcat Windows installer is now digitally signed. (markt)
Fix timestamps in Tomcat build and jdbc-pool to use 24-hour format instead of 12-hour one and use UTC timezone. (markt/kkolinko)
Update the package renamed copy of Apache Commons DBCP 2 to revision 1631450 to pick up additional fixes since the 2.0.1 release including Javadoc corrections to fix errors when compiling with Java 8. (markt)
56596: Update to Tomcat Native Library version 1.1.32 to pick up the Windows binaries that are based on OpenSSL 1.0.1j and APR 1.5.1. (markt)
In Tomcat tests: log name of the current test method at start time. (kkolinko)

Other

56079: The Apache Tomcat Windows installer, the Apache Tomcat Windows service and the Apache Tomcat Windows service monitor application are now digitally signed. (markt)

Catalina

55917: Allow bytes in the range 0x80 to 0xFF to appear in cookie values if the cookie is a V1 (RFC2109) cookie and the value is correctly quoted. The new RFC6265 based cookie parser must be enabled to correctly handle these cookies. (markt)
55918: Do not permit control characters to appear in quoted V1 (RFC2109) cookie values. The new RFC6265 based cookie parser must be enabled to correctly handle these cookies. (markt)
55921: Correctly handle (ignore the cookie) unescaped JSON in a cookie value. The new RFC6265 based cookie parser must be enabled to correctly handle these cookies. (markt)
56401: Log version information when Tomcat starts. (markt/kkolinko)
56530: Add a web application class loader implementation that supports the parallel loading of web application classes. (markt)
56900: Fix some potential resource leaks when reading property files reported by Coverity Scan. Based on patches provided by Felix Schumacher. (markt)
56902: Fix a potential resource leak in the Default Servlet reported by Coverity Scan. Based on a patch provided by Felix Schumacher. (markt)
56903: Correct the return value for StandardContext.getResourceOnlyServlets() so that multiple names are separated by commas. Identified by Coverity Scan and fixed based on a patch by Felix Schumacher. (markt)
Add an additional implementation of a RFC6265 based cookie parser along with new Context options to select and configure it. This parser is currently considered experimental and is not used by default. (markt)
Fixed the multipart elements merge operation performed during web application deployment. Identified by Coverity Scan. (violetagg)
Correct the information written by ExtendedAccessLogValve when a format token x-O(XXX) is used so that multiple values for a header XXX are separated by commas. Identified by Coverity Scan. (violetagg)
Fix a potential resource leak when reading MANIFEST.MF file for extension dependencies reported by Coverity Scan. (violetagg)
Fix some potential resource leaks when reading properties, files and other resources. Reported by Coverity Scan. (violetagg)
Correct the previous fix for 56825 that enabled pre-emptive authentication to work with the SSL authenticator. (markt)
Refactor to reduce code duplication identified by Simian. (markt)
When using parallel deployment and undeployOldVersions feature is enabled on a Host, correctly undeploy context of old version. Make sure that Tomcat does not undeploy older Context if current context is not running. (kfujino)
Fix a rare threading issue when locking resources via WebDAV. (markt)
Fix a rare threading issue when using HTTP digest authentication. (markt)
When deploying war, add XML file in the config base to the redeploy resources if war does not have META-INF/context.xml or deployXML is false. If XML file is created in the config base, redeploy will occur. (kfujino)
Various changes to reduce unnecessary code in Tomcat's copy of Apache Commons BCEL to reduce the time taken for annotation scanning when web applications start. Includes contributions from kkolinko and hzhang9. (markt)
56938: Ensure web applications that have mixed case context paths and are deployed as directories are correctly removed on undeploy when running on a case sensitive file system. (markt)
57004: Add stuckThreadCount property to StuckThreadDetectionValve's JMX bean. Patch provided by Jiří Pejchal. (schultz)
57011: Ensure that the request and response are correctly recycled when processing errors during async processing. (markt)

Coyote

56910: Prevent the invalid value of -1 being used for maxConnections with APR connectors. (markt)
Ensure that AJP connectors enable the KeepAliveTimeout. (kfujino)
Reduce duplicated code. All AJP connectors use common method to configuration of processor. (kfujino)

Jasper

43001: Enable the JspC Ant task to set the JspC option mappedFile. (markt)
Ensure that the implementation of javax.servlet.jsp.PageContext.include(String) and javax.servlet.jsp.PageContext.include(String, boolean) will throw IOException when an I/O error occur during the operation. (violetagg)
56908: Fix some potential resource leaks when reading jar files. Reported by Coverity Scan. Patch provided by Felix Schumacher. (violetagg)
Fix a potential resource leak in JDTCompiler when checking whether a resource is a package. Reported by Coverity Scan. (fschumacher)
56991: Deprecate the use of a request attribute to pass a declaration to Jasper and prevent an infinite loop if this technique is used in conjunction with an include. (markt)

WebSocket

56905: Make destruction on web application stop of thread group used for WebSocket connections more robust. (kkolinko/markt)
56907: Ensure that client IO threads are stopped if a secure WebSocket client connection fails. (markt)
56982: Return the actual negotiated extensions rather than an empty list for Session.getNegotiatedExtensions(). (markt)
Update the WebSocket implementation to support the Java WebSocket specification version 1.1. (markt)

Web applications

Add JarScanner to the nested components listed for a Context. (markt)
Update the Windows authentication documentation after some additional testing to answer the remaining questions. (markt)

Other

56895: Correctly compose JAVA_OPTS in catalina.bat so that escape sequences are preserved. Patch by Lucas Theisen. (markt)
56988: Allow to use relative path in base.path setting when building Tomcat. (kkolinko)
56990: Ensure that the ide-eclipse build target downloads all the libraries required by the default Eclipse configuration files. (markt)
Update the package renamed copy of Apache Commons DBCP 2 to revision 1626988 to pick up the fixes since the 2.0.1 release including support for custom eviction policies. (markt)
Update the package renamed copy of Apache Commons Pool 2 to revision 1627271 to pick up the fixes since the 2.2 release including some memory leak fixes and support for application provided eviction policies. (markt)

Catalina

Make the session id generator extensible by adding a SessionIdGenerator interface, an abstract base class and a standard implementation. (rjung)
56882: Fix regression in processing of includes and forwards when Context have been reloaded. Tomcat was responding with HTTP Status 503 (Servlet xxx is currently unavailable). (kkolinko)

Coyote

When building a list of JSSE ciphers from an OpenSSL cipher definition, ignore unknown criteria rather than throwing a NullPointerException. (markt)
Add support for the EECDH alias when using the OpenSSL cipher syntax to define JSSE ciphers. (markt)

Jasper

Correct a logic error in the JasperElResolver. There was no functional impact but the code was less efficient as a result of the error. Based on a patch by martinschaef. (markt)
56568: Enable any HTTP method to be used to request a JSP page that has the isErrorPage page directive set to true. (markt)

WebSocket

Extend support for the permessage-deflate extension to compression of outgoing messages on the server side. (markt)

Other

56323: Include the *.bat files when installing Tomcat via the Windows installer. (markt)

Catalina

56658: Fix regression that a context was inaccessible after reload. (kkolinko)
56710: Do not map requests to servlets when context is being reloaded. (kkolinko)
56712: Fix session idle time calculations in PersistenceManager. (kkolinko)
56717: Fix duplicate registration of MapperListener during repeated starts of embedded Tomcat. (kkolinko)
56724: Write an error message to Tomcat logs if container background thread is aborted unexpectedly. (kkolinko)
When scanning class files (e.g. for annotations) and reading the number of parameters in a MethodParameters structure only read a single byte (rather than two bytes) as per the JVM specification. Patch provided by Francesco Komauli. (markt)
Allow the JNDI Realm to start even if the directory is not available. The directory not being available is not fatal once the Realm is started and it need not be fatal when the Realm starts. Based on a patch by Cédric Couralet. (markt)
56736: Avoid an incorrect IllegalStateException if the async timeout fires after a non-container thread has called AsyncContext.dispatch() but before a container thread starts processing the dispatch. (markt)
56739: If an application handles an error on an application thread during asynchronous processing by calling HttpServletResponse.sendError(), then ensure that the application is given an opportunity to report that error via an appropriate application defined error page if one is configured. (markt)
56784: Fix a couple of rare but theoretically possible atomicity bugs. (markt)
56785: Avoid NullPointerException if directory exists on the class path that is not readable by the Tomcat user. (markt)
56796: Remove unnecessary sleep when stopping a web application. (markt)
56801: Improve performance of org.apache.tomcat.util.file.Matcher which is to filter JARs for scanning during web application start. Based on a patch by Sheldon Shao. (markt)
56815: When the gzip option is enabled for the DefaultServlet ensure that a suitable Vary header is returned for resources that might be returned directly in compressed form. (markt)
Do not mark threads from the container thread pool as container threads when being used to process AsyncContext.start(Runnable) so processing is correctly transferred back to a genuine container thread when necessary. (markt)
Add simple caching for calls to StandardRoot.getResources() in the new (for 8.0.x) resources implementation. (markt)
56825: Enable pre-emptive authentication to work with the SSL authenticator. Based on a patch by jlmonteiro. (markt)
56840: Avoid NPE when the rewrite valve is mapped to a context. (remm)
Correctly handle multiple accept-language headers rather than just using the first header to determine the user's preferred Locale. (markt)
56848: Improve handling of accept-language headers. (markt)
56857: Fix thread safety issue when calling ServletContext methods while running under a security manager. (markt)

Coyote

Fix NIO2 sendfile state tracking and error handling to fix various corruption issues. (remm)
Missing timeout for NIO2 sendfile writes. (remm)
Allow inline processing for NIO2 sendfile and optimize keepalive behavior. (remm)
Fix excessive NIO2 sendfile direct memory use in some cases, sendfile will now instead use the regular socket write buffer as configured. (remm)
56661: Fix getLocalAddr() for AJP connectors. The complete fix is only available with a recent AJP forwarder like the forthcoming mod_jk 1.2.41. (rjung)
Use default ciphers defined as HIGH:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5 so that no weak ciphers are enabled by default. (remm)
56780: Enable Tomcat to start when using SSL with an IBM JRE in strict SP800-131a mode. (markt)
56810: Remove use of Java 8 specific API calls in unit tests for OpenSSL to JSSE cipher conversion. (markt)

Jasper

56709: Fix system property name in a log message. Submitted by Robert Kish. (remm)
56797: When matching a method in an EL expression, do not treat bridge methods as duplicates of the method they bridge to. In this case always call the target of the bridge method. (markt)

WebSocket

56746: Allow secure WebSocket client threads to use the current context class loader rather than explicitly setting it to the class loader that loaded the WebSocket implementation. This allows WebSocket client connections from within web applications to access, amongst other things, the JNDI resources associated with the web application. (markt)

Web applications

Correct the label in the list of sessions by idle time for the bin that represents the idle time immediately below the maximum permitted idle time when using the expire command of the Manager application. (markt)

jdbc-pool

53088: More identifiable thread name. (fhanik)
53200: Selective logging for slow versus failed queries. (fhanik)
53853: More flexible classloading. (fhanik)
54225: Disallow empty init SQL. (fhanik)
54227: Evaluate max age upon borrow. (fhanik)
54235: Disallow nested pools exploitating using data source. (fhanik)
54395: Fix JDBC interceptor parsing bug. (fhanik)
54537: Performance improvement in StatementFinalizer. (fhanik)
54978: Make sure proper connection validation always happens, regardless of config. (fhanik)
56318: Ability to trace statement creation in StatementFinalizer. (fhanik)
56789: getPool() returns the actual pool, always. (fhanik)

Other

56788: Display the full version in the list of installed applications when installed via the Windows installer package. Patch provided by Alexandre Garnier. (markt)
56829: Add the ability for users to define their own values for _RUNJAVA and _RUNJDB environment variables. Be more strict with executable filename on Windows (s/java/java.exe/). Based on a patch by Neeme Praks. (markt/kkolinko)

Catalina

44312: Log an error if there is a conflict between Host and Alias names. Improve host management methods in Mapper to avoid occasionally removing a wrong host. Check that host management operations are performed on the host and not on an alias. (kkolinko)
56611: Refactor code to remove inefficient calls to Method.isAnnotationPresent(). Based on a patch by Jian Mou. (markt/kkolinko)
Fix regression in StandardContext.removeApplicationListener(), introduced by the fix for bug 56588. (kkolinko)
56653: Fix concurrency issue with lists of contexts in Mapper when stopping Contexts. (kkolinko)
56657: When using parallel deployment, if the same session id matches different versions of a web application, prefer the latest version. Ensure that remapping selects the version that we expect. (kkolinko)
Assert that mapping result object is empty before performing mapping work in Mapper. (kkolinko)
Remove context and wrapper fields in Request class and deprecate their setters. (kkolinko)
56658: Avoid delay between registrations of mappings for context and for its servlets. (kkolinko)
56665: Correct the generation of the effective web.xml when elements contain an empty string as value. (violetagg)
Fix storeconfig exception routing issues, so that a major problem should avoid configuration overwrite. (remm)
Add configuration fields for header names in SSLValve. (remm)
56666: When clearing the SSO cookie use the same values for domain, path, httpOnly and secure as were used to set the SSO cookie. (markt)
56677: Ensure that HttpServletRequest.getServletContext() returns the correct value during a cross-context dispatch. (markt)
56684: Ensure that Tomcat does not shut down if the socket waiting for the shutdown command experiences a SocketTimeoutException. (markt)
56693: Fix various issues in the static resource cache implementation where the cache retained a stale entry after the successful completion of an operation that always invalidates the cache entry such as a delete operation. (markt)
When the current PathInfo is modified as a result of dispatching a request, ensure that a call to HttpServletRequest.getPathTranslated() returns a value that is based on the modified PathInfo. (markt)
56698: When persisting idle sessions, only persist newly idle sessions. Patch provided by Felix Schumacher. (markt)

Coyote

56663: Fix edge cases demonstrated by ByteCounter relating to data available, remaining and extra write events, mostly occurring with non blocking Servlet 3.1. (remm)
Avoid possible NPE stopping endpoints that are not started (stop shouldn't do anything in that case). (remm)
56704: Add support for OpenSSL syntax for ciphers when using JSSE SSL connectors. Submitted by Emmanuel Hugonnet. (remm)
Allow to configure maxSwallowSize attribute of an HTTP connector via JMX. (kkolinko)

Jasper

56543: Update to the Eclipse JDT Compiler 4.4. (violetagg)
56652: Add support for method parameters that use arrays and varargs to ELProcessor.defineFunction().(markt)

WebSocket

Add support for the permessage-deflate extension. This is currently limited to decompressing incoming messages on the server side. It is expected that support will be extended to outgoing messages and to the client side shortly. (markt)

Web applications

Attempt to obfuscate session cookie values associated with other web applications when viewing HTTP request headers with the Cookies example from the examples web application. This reduces the opportunity to use this example for malicious purposes should the advice to remove the examples web application from security sensitive systems be ignored. (markt)
56694: Remove references to Manager attribute checkInterval from documentation and Javadoc since it no longer exists. Based on a patch by Felix Schumacher. Also remove other references to checkInterval that are no longer valid. (markt)

Other

Update the API stability section of the release notes now that Tomcat 8 has had its first stable release. (markt)
Improve build.xml so that when Eclipse JDT Compiler is updated, it will delete the old JAR from build/lib directory. (kkolinko)
Simplify implementation of "setproxy" target in build.xml. (kkolinko)
Update optional Checkstyle library to 5.7. (kkolinko)
56596: Update to Tomcat Native Library version 1.1.31 to pick up the Windows binaries that are based on OpenSSL 1.0.1h. (markt)
56685: Add quotes necessary for daemon.sh to work correctly on Solaris. Based on a suggestion by lfuka. (markt)
Update package renamed Apache Commons Pool2 to r1609323 to pick various bug fixes. (markt)
Update package renamed Apache Commons DBCP2 to r1609329 to pick up a minor bug fix. (markt)
Update package renamed Apache Commons FileUpload to r1596086 to pick various bug fixes. (markt)

Catalina

55282: Ensure that one and the same application listener is added only once when starting the web application. (violetagg)
55975: Apply consistent escaping for double quote and backslash characters when escaping cookie values. (markt)
56387: Improve the code that handles an attempt to load a class after a web application has been stopped. Use common code to handle this case regardless of the access path and don't throw an exception purely to log a stack trace. (markt)
56399: Improve implementation of CoyoteAdapter.checkRecycled() to do not use an exception for flow control. (kkolinko)
56461: New failCtxIfServletStartFails attribute on Context and Host configuration to force the context startup to fail if a load-on-startup servlet fails its startup. (slaurent)
56526: Improved the StuckThreadDetectionValve to optionally interrupt stuck threads to attempt to unblock them. (slaurent)
56545: Pre-load two additional classes, the loading of which may otherwise be triggered by a web application which in turn would trigger an exception when running under a security manager. (markt)
56546: Reduce logging level for stack traces of stuck web application threads printed by WebappClassLoader.clearReferencesThreads() from error to info. (kkolinko)
Refactor and simplify common code in object factories in org.apache.catalina.naming package, found thanks to Simian (Similarity Analyser) tool. Improve handling of Throwable. (markt/kkolinko)
Relax cookie naming restrictions. Cookie attribute names used in the Set-Cookie header may be used unambiguously as cookie names. The restriction that prevented such usage has been removed. (jboynes/markt)
Further relax cookie naming restrictions. Version 0 (a.k.a Netscape format) cookies may now use names that start with the $ character. (jboynes/markt)
Restrict cookie naming so that the = character is no longer permitted in a version 0 (a.k.a. Netscape format) cookie name. While Tomcat allowed this, browsers always truncated the name at the = character leading to a mis-match between the cookie the server set and the cookie returned by the browser. (jboynes/markt)
Add a simple ServiceLoader based discovery mechanism to the JULI LogFactory to make it easier to use JULI and Tomcat components that depend on JULI (such as Jasper) independently from Tomcat. Patch provided by Greg Wilkins. (markt)
56578: Correct regression in the fix for 56339 that prevented sessions from expiring when using clustering. (markt)
56588: Remove code previously added to enforce the requirements of section 4.4 of the Servlet 3.1 specification. The code is no longer required now that Jasper initialization has been refactored and TLD defined listeners are added via a different code path that already enforces the specification requirements. (markt)
56600: In WebdavServlet: Do not waste time generating response for broken PROPFIND request. (kkolinko)
Provide a better error message when asynchronous operations are not supported by a filter or servlet. Patch provided by Romain Manni-Bucau. (violetagg)
56606: User entries in tomcat-users.xml file are recommended to use "username" attribute rather than legacy "name" attribute. Fix inconsistencies in Windows installer, examples. Update digester rules and documentation for MemoryRealm. (markt/kkolinko)

Coyote

56518: When using NIO, do not attempt to write to the socket if the thread is marked interrupted as this will lead to a connection limit leak. This fix was based on analysis of the issue by hanyong. (markt)
56521: Re-use the asynchronous write buffer between writes to reduce allocation and GC overhead. Based on a patch by leonzhx. Also make the buffer size configurable and remove copying of data within buffer when the buffer is only partially written on a subsequent write. (markt)
Ensure that a request without a body is correctly handled during Comet processing. This fixes the Comet chat example. (markt)
Fix input concurrency issue in NIO2 upgrade. (remm)
Correct a copy/paste error and return a 500 response rather than a 400 response when an internal server error occurs on early stages of request processing. (markt)
56582: Use switch(actionCode) in processors instead of a chain of "elseif"s. (kkolinko)
56582#c1: Implement DISPATCH_EXECUTE action for AJP connectors. (kkolinko)
Fix CVE-2014-0227: Various improvements to ChunkedInputFilter including clean-up, i18n for error messages and adding an error flag to allow subsequent attempts at reading after an error to fail fast. (markt)
If request contains an unrecognized Expect header, respond with error 417 (Expectation Failed), according to RFC2616 chapter 14.20. (markt)
When an error occurs after the response has been committed close the connection immediately rather than attempting to finish the response to make it easier for the client to differentiate between a complete response and one that failed part way though. (markt)
Remove the beta tag from the NIO2 connectors. (remm)
56620: Avoid bogus access log entries when pausing the NIO HTTP connector and ensure that access log entries generated by error conditions use the correct request start time. (markt)
Improve configuration of cache sizes in the endpoint. (markt)
Fix CVE-2014-0230: Add a new limit, defaulting to 2MB, for the amount of data Tomcat will swallow for an aborted upload. The limit is configurable by maxSwallowSize attribute of an HTTP connector. (markt)

Jasper

56334#c15: Fix a regression in EL parsing when quoted string follows a whitespace. (kkolinko/markt)
56543: Update to the Eclipse JDT Compiler 4.4RC4 to pick up some fixes for Java 8 support. (markt/kkolinko)
56561: Avoid NoSuchElementException while handling attributes with empty string value. (violetagg)
Do not configure a JspFactory in the JasperInitializer if one has already been set as might be the case in some embedding scenarios. (markt)
Add a simple implementation of InstanceManager and have Jasper use it if no other InstanceManager is provided. This makes it easier to use Jasper independently from Tomcat. Patch provided by Greg Wilkins. (markt)
56568: Allow any HTTP method when a JSP is being used as an error page. (markt)
56581: If an error on a JSP page occurs when response has already been committed, do not clear the buffer of JspWriter, but flush it. It will make more clear where the error occurred. (kkolinko)
56612: Correctly parse two consecutive escaped single quotes when used in UEL expression in a JSP. (markt)
Move code that parses EL expressions within JSP template text from Parser to JspReader class for better performance. (kkolinko)
56636: Correctly identify the required method when specified via ELProcessor.defineFunction(String,String,String,String) when using Expression Language. (markt)
56638: When using ELProcessor.defineFunction(String,String,String,String) and no function name is specified, use the method name as the function name as required by the specification. (markt)

WebSocket

56446: Clearer handling of exceptions when calling a method on a POJO based WebSocket endpoint. Based on a suggestion by Eugene Chung. (markt)
When a WebSocket client attempts to write to a closed connection, handle the resulting IllegalStateException in a manner consistent with the handling of an IOException. (markt)
Add more varied endpoints for echo testing. (remm)
56577: Improve the executor configuration used for the callbacks associated with asynchronous writes. (markt)

Web applications

Set the path for cookies created by the examples web application so they only returned to the examples application. This reduces the opportunity for using such cookies for malicious purposes should the advice to remove the examples web application from security sensitive systems be ignored. (markt/kkolinko)
Attempt to obfuscate session cookie values associated with other web applications when viewing HTTP request headers with the Request Header example from the examples web application. This reduces the opportunity to use this example for malicious purposes should the advice to remove the examples web application from security sensitive systems be ignored. (markt)
Add options for all of the WebSocket echo endpoints to the WebSocket echo example in the examples web application. (markt)
Ensure that the asynchronous WebSocket echo endpoint in the examples web application always waits for the previous message to complete before it sends the next. (markt)

Other

Update package renamed Apache Commons DBCP2 to r1596858. (markt)

Catalina

56536: Ensure that HttpSessionBindingListener.valueUnbound() uses the correct class loader when the SingleSignOn valve is used. (markt)

Jasper

56529: Avoid NoSuchElementException while handling attributes with empty string value in custom tags. Patch provided by Hariprasad Manchi. (violetagg)

Catalina

56523: When using SPNEGO authentication, log the exceptions associated with failed user logins at debug level rather than error level. (markt)

Coyote

56399: Assert that both Coyote and Catalina request objects have been properly recycled. (kkolinko)

Jasper

56522: When setting a value for a ValueExpression, ensure that the expected coercions take place such as a null string being coerced to an empty string. (markt)

Other

Copy missing resources file from Apache Commons DBCP 2 to packaged renamed copy of DBCP 2. (markt)

Catalina

Fix extension validation which was broken by refactoring for new resources implementation. (markt)
Fix custom UTF-8 decoder so that a byte of value 0xC1 is always rejected immediately as it is never valid in a UTF-8 byte sequence. Update UTF-8 decoder tests to account for UTF-8 decoding improvements in Java 8. The custom UTF-8 decoder is still required due to bugs in the UTF-8 decoder provided by Java. Java 8's decoder is better than Java 7's but it is still buggy. (markt)
56027: Add more options for managing FIPS mode in the AprLifecycleListener. (schultz/kkolinko)
56320: Fix a file descriptor leak in the default servlet when sendfile is used. (markt)
56321: When a WAR is modified, undeploy the web application before deleting any expanded directory as the undeploy process may refer to classes that need to be loaded from the expanded directory. If the expanded directory is deleted first, any attempt to load a new class during undeploy will fail. (markt)
56327: Enable AJP as well as HTTP connectors to be created via JMX. Patch by kiran. (markt)
56339: Avoid an infinite loop if an application calls session.invalidate() from the session destroyed event for that session. (markt)
56365: Simplify file name pattern matching code in StandardJarScanner. Improve documentation. (kkolinko)
Ensure that the static resource cache is able to detect when a cache entry is invalidated by being overridden by a new resource in a different WebResourceSet. (markt)
56369: Ensure that removing an MBean notification listener reverts all the operations performed when adding an MBean notification listener. (markt)
Improve implementation of Lifecycle for WebappClassLoader. State is now correctly reported rather than always reporting as NEW. (markt)
56382: Information about finished deployment and its execution time is added to the log files. Patch is provided by Danila Galimov. (violetagg)
56383: Properties for disabling server information and error report are added to the org.apache.catalina.valves.ErrorReportValve. Based on the patch provided by Nick Bunn. (violetagg/kkolinko)
56390: Fix JAR locking issue with JARs containing TLDs and the TLD cache that prevented the undeployment of web applications when the WAR was deleted. (markt)
Fix CVE-2014-0119: Only create XML parsing objects if required and fix associated potential memory leak in the default Servlet. Extend XML factory, parser etc. memory leak protection to cover some additional locations where, theoretically, a memory leak could occur. (markt)
Modify generic exception handling so that StackOverflowError is not treated as a fatal error and can handled and/or logged as required. (markt)
56409: Avoid StackOverflowError on non-Windows systems if a file named \ is encountered when scanning for TLDs. (markt)
56430: Extend checks for suspicious URL patterns to include patterns of the form *.a.b which are not valid patterns for extension mappings. (markt)
56441: Raise the visibility of exceptions thrown when a problem is encountered calling a getter or setter on a component attribute. The logging level is raised from debug to warning. (markt)
56463: Property for disabling server information is added to the DefaultServlet. Server information is presented in the response sent to the client when directory listings is enabled. (violetagg)
56472: Allow NamingContextListener to clean up on stop if its start failed. (kkolinko)
56481: Work around case insensitivity issue in URLClassLoader exposed by some recent refactoring. (markt)
56492: Avoid eclipse debugger pausing on uncaught exceptions when tomcat renews its threads. (slaurent)
Add the org.apache.naming package to the packages requiring code to have the defineClassInPackage permission when running under a security manager. (markt)
Make the naming context tokens for containers more robust by using a separate object. Require RuntimePermission when introducing a new token. (markt/kkolinko)
56501: HttpServletRequest.getContextPath() should return the undecoded context path used by the user agent. (markt)
Minor fixes to ThreadLocalLeakPreventionListener. Do not trigger threads renewal for failed contexts. Do not ignore threadRenewalDelay setting. Improve documentation. (kkolinko)
Correct regression introduced in r1239520 that broke loading of users from tomcat-users.xml when using the JAASMemoryLoginModule. (markt)
Correct regression introduced in r797162 that broke authentication of users when using the JAASMemoryLoginModule. (markt)

Coyote

More cleanup of NIO2 endpoint shutdown. (remm)
56336: AJP output corruption and errors. (remm)
Handle various cases of incomplete writes in NIO2. (remm)
Code cleanups and i18n in NIO2. (remm)
Fix extra onDataAvailable calls in the NIO2 connector. (remm)
Fix gather writes in NIO2 SSL. (remm)
Upgrade the NIO2 connectors to beta, but still not ready for production. (remm)
Fix code duplication between NIO and NIO2. (remm)
56348: Fix slow asynchronous read when read was performed on a non-container thread. (markt)
56416: Correct documentation for default value of socket linger for the AJP and HTTP connectors. (markt)
Fix possible corruption if doing keepalive after a comet request. (remm)
56518: Fix connection limit latch leak when a non-container thread is interrupted during asynchronous processing. (markt)

Jasper

56334: Fix a regression in the handling of back-slash escaping introduced by the fix for 55735. (markt/kkolinko)
56425: Improve method matching for EL expressions. When looking for matching methods, an exact match between parameter types is preferred followed by an assignable match followed by a coercible match. (markt)
Correct the handling of back-slash escaping in the EL parser and no longer require that \$ or \# must be followed by { in order for the back-slash escaping to take effect. (markt)

Cluster

Remove the implementation of org.apache.catalina.LifecycleListener from org.apache.catalina.ha.tcp.SimpleTcpCluster. SimpleTcpCluster does not work as LifecycleListener, it works as nested components of Host or Engine. (kfujino)
Remove cluster and replicationValve from cluster manager template. These instance are not necessary to template. (kfujino)
Add support for cross context session replication to org.apache.catalina.ha.session.BackupManager. (kfujino)
Remove the unnecessary cross context check. It does not matter whether the context that is referenced by other context is set to crossContext=true. The context that refers to the different context must be set to crossContext=true. (kfujino)
Move to org.apache.catalina.ha.session.ClusterManagerBase common logics of org.apache.catalina.ha.session.BackupManager and org.apache.catalina.ha.session.DeltaManager. (kfujino)
Simplify the code of o.a.c.ha.tcp.SimpleTcpCluster. In order to add or remove cluster valve to Container, use pipeline instead of IntrospectionUtils. (kfujino)
There is no need to set cluster instance when SimpleTcpCluster.unregisterClusterValve is called. Set null than cluster instance for cleanup. (kfujino)

WebSocket

56343: Avoid a NPE if Tomcat's Java WebSocket 1.0 implementation is used with the Java WebSocket 1.0 API JAR from the reference implementation. (markt)
Increase the default maximum size of the executor used by the WebSocket implementation for call backs associated with asynchronous writes from 10 to 200. (markt)
Add a warning if the thread group created for WebSocket asynchronous write call backs can not be destroyed when the web application is stopped. (markt)
Ensure that threads created to support WebSocket clients are stopped when no longer required. This will happen automatically for WebSocket client connections initiated by web applications but stand alone clients must call WsWebSocketContainer.destroy(). (markt)
56449: When creating a new session, add the message handlers to the session before calling Endpoint.onOpen() so the message handlers are in place should the onOpen() method trigger the sending of any messages. (markt)
56458: Report WebSocket sessions that are created over secure connections as secure rather than as not secure. (markt)
Stop threads used for secure WebSocket client connections when they are no longer required and give them better names for easier debugging while they are running. (markt)

Web applications

Add Support for copyXML attribute of Host to Host Manager. (kfujino)
Ensure that "name" request parameter is used as a application base of host if "webapps" request parameter is not set when adding host in HostManager Application. (kfujino)
Correct documentation on Windows service options, aligning it with Apache Commons Daemon documentation. (kkolinko)
56418: Ensure that the Manager web application does not report success for a web application deployment that fails. (slaurent)
Improve valves documentation. Split valves into groups. (kkolinko)
56513: Make the documentation crystal clear that using sendfile will disable any compression that Tomcat may otherwise have applied to the response. (markt)

Other

Review source code and take advantage of Java 7's try-with-resources syntax where possible. (markt)
Align DisplayName of Tomcat installed by service.bat with one installed by the *.exe installer. Print a warning in case if neither server nor client jvm is found by service.bat. (kkolinko)
56363: Update to version 1.1.30 of Tomcat Native library. (schultz)
Update package renamed Apache Commons BCEL to r1593495 to pick up some additional changes for Java 7 support and some code clean up. (markt)
Update package renamed Apache Commons FileUpload to r1569132 to pick up some small improvements (e.g. better null protection) and some code clean up. (markt)
Update package renamed Apache Commons Codec to r1586336 to pick up some Javadoc fixes and some code clean up. (markt)
Switch to including Apache Commons DBCP via a package renamed svn copy rather than building from a source release for consistency with other Commons packages and to allow faster releases to fix DBCP related issues. (markt)
Update package renamed Apache Commons Pool2 and DBCP2 to r1593563 to pick various bug fixes. (markt)
In tests: allow to configure directory where JUnit reports and access log are written to. (kkolinko)

Catalina

Rework the fix for 56190 as the previous fix did not recycle the request in all cases leading to mis-routing of requests. (markt)
Allow web applications to package tomcat-jdbc.jar and their JDBC driver of choice in the web application. (markt)
56293: Cache resources loaded by the class loader from /META-INF/services/ for better performance for repeated look ups. (markt)

Coyote

Fix possibly incomplete final flush with NIO2 when using non blocking mode. (remm)
Cleanup NIO2 endpoint shutdown. (remm)
Fix rare race condition notifying onWritePossible in the NIO2 HTTP/1.1 connector. (remm)

Jasper

54475: Add Java 8 support to SMAP generation for JSPs. Patch by Robbie Gibson. (markt)

Web applications

56273: If the Manager web application does not perform an operation because the web application is already being serviced, report an error rather than reporting success. (markt)
56304: Add a note to the documentation about not using WebSocket with BIO HTTP in production. (markt)

Catalina

Restore the ability to use the addURL() method of the web application class loader to add external resources to the web application. (markt)
Improve the robustness of web application undeployment based on some code analysis triggered by the report for 54315. (markt)
56125: Correctly construct the URL for a resource that represents the root of a JAR file. (markt)
Generate a valid root element for the effective web.xml for a web application for all supported versions of web.xml. (markt)
Make it easier for applications embedding and/or extending Tomcat to modify the javaseClassLoader attribute of the WebappClassLoader. (markt)
Add missing support for element when merging web.xml files. (markt)
Improve merging process for web.xml files to take account of the elements and attributes supported by the Servlet version of the merged file. (markt)
Avoid NullPointerException in resource cache when making an invalid request for a resource outside of the web application. (markt)
Remove an unnecessary null check identified by FindBugs. (markt)
In WebappClassLoader, when reporting threads that are still running while web application is being stopped, print their stack traces to the log. (kkolinko)
56190: The response should be closed (i.e. no further output is permitted) when a call to AsyncContext.complete() takes effect. (markt)
56236: Enable Tomcat to work with alternative Servlet and JSP API JARs that package the XML schemas in such as way as to require a dependency on the JSP API before enabling validation for web.xml. Tomcat has no such dependency. (markt)
56244: Fix MBeans descriptor for WebappClassLoader MBean. (kkolinko)
Add a work around for validating XML documents (often TLDs) that use just the file name to refer to the JavaEE schema on which they are based. (markt)
Add methods of get the idle time from last client access time to org.apache.catalina.Session. (kfujino)
56246: Fix NullPointerException in MemoryRealm when authenticating an unknown user. (markt)
56248: Allow the deployer to update an existing WAR file without undeploying the existing application if the update flag is set. This allows any existing custom context.xml for the application to be retained. To update an application and remove any existing context.xml simply undeploy the old version of the application before deploying the new version. (markt)
56253: When listing resources that are provided by a JAR, fix possible StringIndexOutOfBoundsExceptions. Add some unit tests for this and similar scenarios and fix the additional issues those unit tests identified. Based on a patch by Larry Isaacs. (markt)
Fix CVE-2014-0096: Redefine the globalXsltFile initialisation parameter of the DefaultServlet as relative to CATALINA_BASE/conf or CATALINA_HOME/conf. Prevent user supplied XSLTs used by the DefaultServlet from defining external entities. (markt)

Coyote

In some circumstances asynchronous requests could time out too soon. (markt)
56172: Avoid possible request corruption when using the AJP NIO connector and a request is sent using more than one AJP message. Patch provided by Amund Elstad. (markt)
Add experimental NIO2 connector. Based on code developed by Nabil Benothman. (remm)
Fix CVE-2014-0075: Improve processing of chuck size from chunked headers. Avoid overflow and use a bit shift instead of a multiplication as it is marginally faster. (markt/kkolinko)
Fix CVE-2014-0095: Correct regression introduced in 8.0.0-RC2 as part of the Servlet 3.1 non-blocking IO support that broke handling of requests with an explicit content length of zero. (markt/kkolinko)
Fix CVE-2014-0099: Fix possible overflow when parsing long values from a byte array. (markt)

Jasper

Change the default compiler source and compiler target versions to 1.7 since Tomcat 8 requires a minimum of Java 7. (markt)
56179: Fix parsing of EL expressions that contain unnecessary parentheses. (markt)
56177: Handle dependency tracking for TLDs when using JspC with a tag library JAR that is located outside of the web application. (markt)
Remove an unnecessary null check identified by FindBugs. (markt)
56199: Restore validateXml option for JspC which determines if web.xml will be parsed with a validating parser. (markt)
56223: Throw an IllegalStateException if a call is made to ServletContext.setInitParameter() after the ServletContext has been initialized. (markt)
56265: Do not escape values of dynamic tag attributes containing EL expressions. (kkolinko)
Make the default compiler source and target versions for JSPs Java 7 since Tomcat 8 requires Java 7 as a minimum. (markt)
56283: Update to the Eclipse JDT Compiler P20140317-1600 which adds support for Java 8 syntax to JSPs. Add support for value "1.8" for the compilerSourceVM and compilerTargetVM options. (markt)

WebSocket

Avoid a possible deadlock when one thread is shutting down a connection while another thread is trying to write to it. (markt)
Avoid NPE when flushing batched messages. (markt)

Web Applications

56093: Add the SSL Valve to the documentation web application. (markt)
56217: Improve readability by using left alignment for the table cell containing the request information on the Manager application status page. (markt)
Fixed java.lang.NegativeArraySizeException when using "Expire sessions" command in the manager web application on a context where the session timeout is disabled. (kfujino)
Add support for LAST_ACCESS_AT_START system property to Manager web application. (kfujino)

Other

56115: Expose the httpusecaches property of Ant's get task as some users may need to change the default. Based on a suggestion by Anthony. (markt)
56143: Improve service.bat so that it can be launched from a non-UAC console. This includes using a single call to tomcat8.exe to install the Windows service rather than three calls, and using command line arguments instead of environment variables to pass the settings. (markt/kkolinko)
Simplify Windows *.bat files: remove %OS% checks, as current java does not run on ancient non-NT operating systems. (kkolinko)
Align options between service.bat and exe Windows installer. For service.bat the changes are in --Classpath, --DisplayName, --StartPath, --StopPath. For exe installer the changes are in --JvmMs, --JvmMx options, which are now 128 Mb and 256 Mb respectively instead of being empty. Explicitly specify --LogPath path when uninstalling Windows service, avoiding default value for that option. (kkolinko)
56137: Explicitly use NIO connector in SSL example in server.xml so it doesn't break if APR is enabled. (markt)
56139: Avoid a web application class loader leak in some unit tests when running on Windows. (markt)
Correct build script to avoid building JARs with empty packages. (markt)
Allow to limit JUnit test run to a number of selected test case methods. (kkolinko)
Update Commons Pool 2 to 2.2. (markt)
Update Commons DBCP 2 to the 2.0 release. (markt)
56189: Remove used file cpappend.bat from the distribution. (markt)
56204: Remove unnecessary dependency between tasks in the build script. (markt)
Add definition of org.apache.catalina.ant.FindLeaksTask. (kfujino)
Implement org.apache.catalina.ant.VminfoTask, org.apache.catalina.ant.ThreaddumpTask and org.apache.catalina.ant.SslConnectorCiphersTask. (kfujino)
Add the option to the Apache Ant tasks to ignore the constraint of the first line of the response message that must be "OK -" (ignoreResponseConstraint in AbstractCatalinaTask). Default is false. (kfujino)

Other

Fix build of Apache Commons DBCP2 classes. (kkolinko)
Update Commons DBCP 2 to snapshot 170 dated 07 Feb 2014. This enables DBCP to work with a SecurityManager such that only DBCP needs to be granted the necessary permissions to communicate with the database. (markt)

Catalina

56082: Fix a concurrency bug in JULI's LogManager implementation. (markt)
56085: ServletContext.getRealPath(String) should return null for invalid input rather than throwing an IllegalArgumentException. (markt)
Fix WebDAV support that was broken by the refactoring for the new resources implementation. (markt)
Simplify Catalina.initDirs(). (kkolinko)
56096: When the attribute rmiBindAddress of the JMX Remote Lifecycle Listener is specified it's value will be used when constructing the address of a JMX API connector server. Patch is provided by Jim Talbut. (violetagg)
When environment entry with one and the same name is defined in the web deployment descriptor and with annotation then the one specified in the web deployment descriptor is with priority. (violetagg)
Fix passing the value of false for xmlBlockExternal option of Context to Jasper, as the default was changed in 8.0.1. (kkolinko)

Coyote

Enable non-blocking reads to take place on non-container threads. (markt)

Cluster

Simplify the code of o.a.c.ha.tcp.SimpleTcpCluster.createManager(String). Remove unnecessary class cast. (kfujino)

Web applications

In Manager web application improve handling of file upload errors. Display a message instead of error 500 page. Simplify. (kkolinko)

Other

56104: Correct the version number on the welcome page of the Windows installer. (markt)
Update Commons DBCP 2 to snapshot 168 dated 05 Feb 2014. (markt)
Fix CVE-2014-0050, a denial of service with a malicious, malformed Content-Type header and multipart request processing. Fixed by merging latest code (r1565159) from Commons FileUpload. (markt)

Catalina

Change default value of xmlBlockExternal attribute of Context. It is true now. (kkolinko)

Coyote

Correct regression in the fix for 55996 that meant that asynchronous requests might timeout too early. (markt)

Jasper

Change default value of the blockExternal attribute of JspC task. The default value is true. Add support for -no-blockExternal switch when JspC is run as a standalone application. (kkolinko)

WebSocket

Do not return an empty string for the Sec-WebSocket-Protocol HTTP header when no sub-protocol has been requested or no sub-protocol could be agreed as RFC6455 requires that no Sec-WebSocket-Protocol header is returned in this case. (markt)

Catalina

Implement JSR 340 - Servlet 3.1. The JSR 340 implementation includes contributions from Nick Williams and Jeremy Boynes. (markt)
Implement JSR 245 MR2 - JSP 2.3. (markt)
Implement JSR 341 - Unified Expression Language 3.0. (markt)
Implement JSR 356 - WebSockets. The JSR 356 implementation includes contributions from Nick Williams, Rossen Stoyanchev and Niki Dokovski. (markt)
46727: Refactor default servlet to make it easier to sub-class to implement finer grained control of the file encoding. Based on a patch by Fred Toth. (markt)
45995: Align Tomcat with Apache httpd and perform MIME type mapping based on file extension in a case insensitive manner. (markt)
Remove duplicate code that converted a Host's appBase attribute to a canonical file. (markt)
51408: Replace calls to Charset.defaultCharset() with an explicit reference to the ISO-8859-1 Charset. (markt)
Refactor initialization code to use a single, consistent approach to determining the Catalina home (binary) and base (instance) directories. The search order for home is catalina.home system property, parent of current directory if boootstrap.jar is present and finally current working directory. The search order for Catalina base is catalina.base system property falling back to the value for Catalina home. (markt)
52092: JULI now uses the OneLineFormatter and AsyncFileHandler by default. (markt)
52558: Refactor CometConnectionManagerValve so that it does not prevent the session from being serialized in when running in a cluster. (markt)
52767: Remove reference to MySQL specific autoReconnect property in JDBCAccessLogValve. (markt)
Make the Mapper type-safe. Hosts, Contexts and Wrappers are no longer handled as plain objects, instead they keep their type. Code using the Mapper doesn't need to cast objects returned by the mapper. (rjung)
Move Manager, Loader and Resources from Container to Context since Context is the only place they are used. The documentation already states (and has done for some time) that Context is the only valid location for these nested components. (markt)
Move the Mapper from the Connector to the Service since the Mapper is identical for all Connectors of a given Service and it is common for there to be multiple Connectors for a Service (http, https and ajp). This means there is now only ever one Mapper per Service rather than possibly multiple identically configured Mapper objects. (markt)
Remove the per Context Mapper objects and use the Mapper from the Service. This removes the need to maintain two copies of the mappings for Servlets and Filters. (markt)
Implement a new Resources implementation that merges Aliases, VirtualLoader, VirtualDirContext, JAR resources and external repositories into a single framework rather than a separate one for each feature. (markt)
URL rewrite valve, similar in functionality to mod_rewrite. (remm)
Port storeconfig functionality, which can persist to server.xml and context.xml runtime container configuration changes. (remm)
54095: Add support to the Default Servlet for serving gzipped versions of static resources directly from disk as an alternative to Tomcat compressing them on each request. Patch by Philippe Marschall. (markt)
54708: Change the name of the working directory for the ROOT application (located under $CATALINA_BASE/work by default) from _ to ROOT. (markt)
Change default configuration so that a change to the global web.xml file will trigger a reload of all web applications. (markt)
55101: Make BASIC authentication more tolerant of whitespace. Patch provided by Brian Burch. (markt)
55166: Move JSP descriptor and tag library descriptor schemas to servlet-api.jar to enable relative references between the schemas to be correctly resolved. (markt)
Refactor the descriptor parsing code into a separate module that can be used by both Catalina and Jasper. Includes patches provided by Jeremy Boynes. (violetagg/markt)
55246: Move TLD scanning to a ServletContainerInitializer provided by Jasper. Includes removal of TldConfig lifecycle listener and associated Context properties. (jboynes)
55317: Facilitate weaving by allowing ClassFileTransformer to be added to WebappClassLoader. Patch by Nick Williams. (markt)
55620: Enable Tomcat to start when either $CATALINA_HOME and/or $CATALINA_BASE contains a comma character. Prevent Tomcat from starting when $CATALINA_HOME and/or $CATALINA_BASE contains a semi-colon on Windows. Prevent Tomcat from starting when $CATALINA_HOME and/or $CATALINA_BASE contains a colon on Linux/FreeBSD/etc. (markt)
Initialize the JSP runtime in Jasper's initializer to avoid need for a Jasper-specific lifecycle listener. JasperListener has been removed. (jboynes)
Change ordering of elements of JMX objects names so components are grouped more logically in JConsole. Generally, components are now grouped by Host and then by Context. (markt)
Context listener to allow better EE and framework integration. (remm)
57896: Support defensive copying of "cookie" header so that unescaping double quotes in a cookie value does not corrupt original value of "cookie" header. This is an opt-in feature, enabled by org.apache.tomcat.util.http.ServerCookie.PRESERVE_COOKIE_HEADER system property. (remm/kkolinko)

Coyote

Experimental support for SPDY. Includes contributions from Sheldon Shao. (costin)
The default connector is now the Java NIO connector even when specifying HTTP/1.1 as protocol (fhanik)
Update default value of pollerThreadCount for the NIO connector. The new default value will never go above 2 regardless of available processors. (fhanik)
54010: Remove some unnecessary code (duplicate calls to configure the scheme as https for AJP requests originally received over HTTPS). (markt)
Refactor char encoding/decoding using NIO APIs. (remm)
Change the default URIEncoding for all connectors from ISO-8859-1 to UTF-8. (markt)

Jasper

Simplify API of ErrorDispatcher class by using varargs. (kkolinko)
Update Jasper to use the new common web.xml parsing code. Includes patches by Jeremy Boynes. (markt/violetagg)
Create test cases for JspC. Patch by Jeremy Boynes. (markt)
55246: TLD scanning is now performed by JasperInitializer (a ServletContainerInitializer) removing the need for support within the Servlet container itself. The scan is now performed only once rather than in two passes reducing startup time. (jboynes)
55251: Do not allow JspC task to fail silently if the web.xml or web.xml fragment can not be generated. (markt)

Cluster

Remove unused JvmRouteSessionIDBinderListener and SessionIDMessage. (kfujino)
Modify method signature in ReplicationValve. Cluster instance is not necessary to argument of method. (kfujino)
Remove unused expireSessionsOnShutdown attribute in org.apache.catalina.ha.session.BackupManager. (kfujino)

Web applications

Extend the diagnostic information provided by the Manager web application to include details of the configured SSL ciphers suites for each connector. (markt)
48550: Update examples web application to use UTF-8. (markt)
55383: Improve the design and correct the HTML markup of the documentation web application. Patches provided by Konstantin Preißer. (markt)

Tribes

Refactor AbstractReplicatedMap to use generics. A key side-effect of this is that the class now implements Map rather than extends ConcurrentMap. (markt)

Other

Remove unused, deprecated code. (markt)
Remove static info String and associated getInfo() method where present. (markt)
(r1353242, r1353410): Remove Ant tasks jasper2 and jkstatus. The correct names are jasper and jkupdate. (kkolinko)
53529: Clean-up the handling of InterruptedException throughout the code base. (markt)
54899: Provide an initial implementation of NetBeans support. Patch provided by Brian Burch. (markt)
55166: Move the JSP descriptor and tag library descriptor schema definition files from jsp-api.jar to servlet-api.jar so relative includes between the J2EE, Servlet and JSP schemas are correctly resolved. (markt)
55372: When starting Tomcat with the jpda option to enable remote debugging, by default only listen on localhost for connections from a debugger. Prior to this change, Tomcat listened on all known addresses. (markt)

Changelog

Tomcat 8.0.38 (markt)

Catalina

Coyote

Jasper

Web applications

jdbc-pool

Other

2016-09-05 Tomcat 8.0.37 (markt)

Catalina

Coyote

Jasper

WebSocket

Web Applications

Tribes

jdbc-pool

Other

2016-06-13 Tomcat 8.0.36 (markt)

Catalina

Coyote

Jasper

Web applications

jdbc-pool

Other

2016-05-16 Tomcat 8.0.35 (markt)

Catalina

not released Tomcat 8.0.34 (markt)

Catalina

Coyote

Jasper

WebSocket

Web applications

Tribes

Other

2016-03-24 Tomcat 8.0.33 (markt)

Catalina

Coyote

Jasper

WebSocket

Web applications

Tribes

Other

2016-02-08 Tomcat 8.0.32 (markt)

General

Catalina

Coyote

Cluster

WebSocket

not released Tomcat 8.0.31 (markt)

Catalina

Jasper

Cluster

WebSocket

Web Applications

Tribes

Other

2015-12-06 Tomcat 8.0.30 (markt)

Catalina

Coyote

Jasper

Cluster

WebSocket

Web Applications

Tribes

jdbc-pool

Other

2015-11-24 Tomcat 8.0.29 (markt)

General

Catalina

Coyote

Jasper

Cluster

Tribes

WebSocket

Web applications

jdbc-pool

Other

2015-10-12 Tomcat 8.0.28 (markt)

Catalina

Coyote