Apache Log4j 2.6.2 发布，Java 日志组件

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                　　Apache Log4j 2.6.2 发布了，Log4j是Apache的一个开放源代码项目，通过使用Log4j，我们可以控制日志信息输送的目的地是控制台、文件、GUI组件、甚至是套接口服务 器、NT的事件记录器、UNIX Syslog守护进程等;我们也可以控制每一条日志的输出格式;通过定义每一条日志信息的级别，我们能够更加细致地控制日志的生成过程。最令人感兴趣的就 是，这些可以通过一个配置文件来灵活地进行配置，而不需要修改应用的代码。
　　新特性：
　　o LOG4J2-1395:  Add "direct" option to ConsoleAppender for increased performance. 
　　o LOG4J2-1437:  (GC) ObjectMessage and ReusableObjectMessage now avoid calling toString()
　　on auto-boxed primitive parameters. 
　　o LOG4J2-1415:  (GC) ParameterFormatter now avoids calling toString() on auto-boxed primitive
　　message parameters. 
　　o LOG4J2-1412:  Unbox utility's ringbuffer of StringBuilders is now configurable. 
　　Bug 修复：
　　o LOG4J2-904:  If copy and delete fails in rename action then resort to truncating the source
　　file after copying it. Thanks to Bernhard Mähr. 
　　o LOG4J2-1250:  CronTriggeringPolicy was not properly setting the prevFileTime value for the
　　PatternProcessor so file dates and times on rolled files were incorrect. 
　　o LOG4J2-1452:  Fixed issue where reusable messages broke flow tracing logic. Thanks to Mikael
　　Ståldal. 
　　o LOG4J2-1440:  Fix bug in OnStartupTriggeringPolicy that allowed it to roll over on every
　　reconfiguration. Added minSize attribute. 
　　o LOG4J2-1414:  Fixed minor issues with the 2.6.1 web site. Thanks to Ralph Goers. 
　　o LOG4J2-1434:  Ensure that the thread-local StringBuilders used by Layouts to format log
　　events to text will not retain excessive memory after a large message was logged. Thanks to Luke Butters.
　　o LOG4J2-1418:  Provide MessageFactory2 to custom Logger implementations. 
　　o LOG4J2-1420:  RollingRandomAccessFileManager was not properly rolling over on startup and was getting a NullPointerException. 
　　o LOG4J2-1417:  Fixed issue where Unbox utility ignored the value Constants.ENABLE_THREADLOCALS

　　and always stored non-JDK>　　o LOG4J2-1422:  Fixed issue where AsyncAppenderQueueFullPolicyTest sometimes hangs. 
　　o LOG4J2-1445:  OnStartupTriggeringPolicyTest fails on Windows saying the file is used by another process. Thanks to Ludovic HOCHET. 
　　更新：
　　
　　o LOG4J2-1432:  Update Jackson from 2.7.4 to 2.7.5. 
　　o LOG4J2-1433:  Update Jansi from 1.11 to 1.13. 
　　o LOG4J2-1444:  Update Apache Commons Compress from 1.11 to 1.12. 

　　详情：Log4j 2.6.2>