2.8.2

Release date

2017-04-02

This release primarily contains bugfixes and minor enhancements. More details on the new features and fixes are itemized below.

Note that subsequent to the 2.6 release a minor source incompatibility was found due to the addition of new methods to the Logger interface. If you have code that does:

logger.error(null, “This is the log message”, throwable);

or similar with any log level you will get a compiler error saying the reference is ambiguous. To correct this either do:

logger.error(“This is the log message”, throwable);

or

logger.error((Marker) null, “This is the log message”, throwable);

The Log4j 2.8.2 API, as well as many core components, maintains binary compatibility with previous releases.

Log4j 2.8.2 requires a minimum of Java 7 to build and run. Log4j 2.3 was the last release that supported Java 6.

Basic compatibility with Log4j 1.x is provided through the log4j-1.2-api component, however it does not implement some of the very implementation specific classes and methods. The package names and Maven groupId have been changed to org.apache.logging.log4j to avoid any conflicts with Log4j 1.x.

For complete information on Apache Log4j 2, including instructions on how to submit bug reports, patches, or suggestions for improvement, see the Apache Log4j 2 website.

Added

  • Add support for appending common suffix to each line of extended and root throwable stack trace. (LOG4J2-1838)

  • Add support for appending common suffix to each line of throwable stack trace. (LOG4J2-1843)

  • Add JSON encoding support to EncodingPatternConverter %encode{}. (LOG4J2-1848)

  • Add support for filtering input in TcpSocketServer and UdpSocketServer. (LOG4J2-1863)

Changed

  • Move integration tests to their own module to speed up build. (LOG4J2-1827)

  • Update Jackson from 2.8.6 to 2.8.7. (LOG4J2-1856)

Fixed

  • Log4j 2.8 can lose exceptions when a security manager is present. (LOG4J2-1820)

  • NullPointerException in HtmlLayout. (LOG4J2-1831)

  • Fix documentation about the licensing for JeroMQ. (LOG4J2-1835)

  • Update the API version to 2.6.0. (LOG4J2-1836)

  • Fix typo in %replace converter documentation. (LOG4J2-1840)

  • Handle when LogEvent.getLoggerName() returns null in KafkaAppender. (LOG4J2-1845)

  • Handle when LogEvent.getLoggerName() returns null in LoggerNameLevelRewritePolicy. (LOG4J2-1846)

  • Fixed daylight savings time (DST) issue with FixedDateFormat. (LOG4J2-1849)

  • Fix CassandraRule and unit tests on Windows. (LOG4J2-1850)

  • The default value of RandomAccessFileAppender.Builder append field is wrong. (LOG4J2-1853)

  • Fix JavaDoc on org.apache.logging.log4j.ThreadContext about inheritance. (LOG4J2-1861)

  • Fix JavaDoc about @Order and OrderComparator ordering. (LOG4J2-1862)