Apache Log4j 2.1 发布 Log4j 2.1下载

Apache Log4j 2.1 发布，此版本是第四个 GA 版本，包括一些 bug 修复和新特性。此版本有两个新的 Maven artifacts： log4j-jul 和 log4j-iostreams。两个组件都是基于 API 可选 Core 特性。

改进记录

新特性：

o LOG4J2-868: Add ShutdownCallbackRegistry interface for customizable shutdown callback handling. This is particularly useful for application servers that wish to integrate with Log4j 2.
o LOG4J2-589: Supported filtering on custom log levels in configuration.
o LOG4J2-856: Documentation: add sections on the JUL Adapter, IO Streams and NoSQL Appenders to the Maven and Ivy page.
o LOG4J2-848: Add a Java lookup to provide nicely formatted runtime version information.
o LOG4J2-809: Move reflection utility class to API’s private utility classes.
o LOG4J2-833: Documentation: added Runtime Dependencies link to left nav-bar on site.
o LOG4J2-816: Documentation: added section on XInclude to user manual Configuration page.
o LOG4J2-547: Add the Log4j IOStreams component.
o LOG4J2-431: Added Memory-Mapped File Appender. Thanks to Claude Mamo.
o LOG4J2-827: Support use of TypeConverter classes through the standard Plugin system.
o LOG4J2-825: Add simple validation constraint annotations for the Plugin system.
o LOG4J2-428: Implement a GELF layout. Thanks to Mark Paluch.
o LOG4J2-608: Add java.util.logging implementation based on log4j-api. See log4j-jul documentation for more details.
o LOG4J2-793: Add support for custom SLF4J Markers in log4j-slf4j-impl module.
o LOG4J2-771: Add lookup for application main arguments.
o LOG4J2-787: Add lookup for JVM arguments.

Bugs 修复

o LOG4J2-676: Some typo fixes and enhancements for the site. Thanks to Stefan Bodewig.
o LOG4J2-866: Documentation: fixed missing closing parenthesis in code example. Thanks to
Gerard Weatherby.
o LOG4J2-862: Fixed classloader issue that prevented Log4j from finding the implementation
when used in a custom Ant task. Thanks to Michael Sutherland.
o LOG4J2-861: Documentation: fix broken links on left navigation Extending Log4j Configuration
sub-menu.
o LOG4J2-797: Documentation: clarified why log4j-core is a compile time dependency in Maven
and Ivy page. Thanks to Andreas Rytina.
o LOG4J2-855: Documentation: fix broken links on Appenders manual page.
o LOG4J2-807: Prevent NPE when configuration with AsyncLogger/AsyncRoot is reloaded.
o LOG4J2-678: Documentation: fixed minor issues with Log4j2 web site/documentation. Thanks
to Matt Sicker.
o LOG4J2-843: Migrate JpaHyperSqlAppenderTest JUnit performance test to log4j-perf.
o LOG4J2-842: Migrate JpaH2AppenderTest JUnit performance test to log4j-perf.
o LOG4J2-841: Migrate JdbcHyperSqlAppenderTest JUnit performance test to log4j-perf.
o LOG4J2-840: Migrate JdbcH2AppenderTest JUnit performance test to log4j-perf.
o LOG4J2-830: Respect external interrupt signal to allow application shutdown after joining
AsyncAppender thread.
o LOG4J2-813: MarkerManager Log4jMarker.hasParents() returns opposite of correct result.
Thanks to David Erichsen, Brandon Barry.
o LOG4J2-785: Documentation: fixed capitalization inconsistency in user manual example config.

o LOG4J2-829: Fixed issue in RollingFile filePattern: backslashes are path separators, not escape characters.
o LOG4J2-832: ThrowableProxy fails if a class in logged stack trace throws java.lang.Error from initializer Thanks to Seth Leger.
o LOG4J2-745: Avoid ConverterKey plugin clashes by using a more predictable plugin loading infrastructure.Plugins have been segmented into three parts: class path, user-specified packages, and OSGi bundles. Thanks to Scott Harrington.
o LOG4J2-798: Fixed plugin scanning redundancy causing massive slowdowns in certain environments. Thanks to Scott Harrington.
o LOG4J2-753: Reduced CachedClock thread contention.
o LOG4J2-819: Fixed memory leak in Tomcat 6 caused by clock background threads unintentionally started by Tomcat after web application stop. Thanks to Gary Gregory.
o LOG4J2-391: FlumePersistentManager now handles LockConflictExceptions in Berkeley Db when sending a batch. Thanks to Kamal Bahadur.
o LOG4J2-782: Remove invalid Oracle Maven repository.
o LOG4J2-796: Fixed issue where log4j-to-slf4j did not work correctly with SLF4J Simple Logger.
o LOG4J2-811: SimpleLogger throws ArrayIndexOutOfBoundsException for an empty array. Thanks to Yogesh Rao.
o LOG4J2-663: Fix OSGi Import-Package problem with the JMS API. Thanks to Florian Brunner.
o LOG4J2-783: PatternLayout should use platform character encoding by default, not UTF-8. Thanks to Minglei Lee.

改进：

o LOG4J2-845: Add 2.1.0 to compatible versions in Log4j API ProviderUtil and update Log4jAPIVersion
to 2.1.0 in core META-INF/log4j-provider.properties.
o LOG4J2-844: Update JMH to 1.1 from 0.7.2.
o LOG4J2-831: Documentation: updated FAQ “which jars” diagrams for JUL bridge and 2.1 version.
o LOG4J2-780: Update Spring Framework to 3.2.11.RELEASE from 3.2.8.RELEASE.
o LOG4J2-815: Unify the two JMS appenders into a single appender. Configurations written
for 2.0 will still work in 2.1+.
o LOG4J2-790: Update Jackson to 2.4.2 from 2.4.1 (for XML and JSON processing).
o LOG4J2-766: Incomplete documentation for JSONLayout. Thanks to Bruno P. Kinoshita.
o LOG4J2-800: All life cycle implementations should be serializable.
This is still work in progress.
o LOG4J2-801: org.apache.logging.log4j.core.Logger should be serializable.
This is still work in progress.
o LOG4J2-810: Update javax.mail to 1.5.2 from 1.5.0.
o LOG4J2-822: Update org.eclipse.persistence.jpa to 2.5.2 from 2.5.1.
o LOG4J2-867: FlumeAppender: maxDelay not in seconds, but milliseconds.
Add time scale to some settings, for example maxDelayMillis instead of maxDelay.
The old names are aliased for compatibility.