[jboss-user] [JBoss Cache: Core Edition] - Re: Clean shutdown/redeploy in Tomcat

lovelyliatroim do-not-reply at jboss.com
Fri Sep 26 06:05:16 EDT 2008 

Same version 1.2.14.

anonymous wrote : 
  | Perhaps it will be fixed in the very last version 1.2.15 ?
  | 
Only one way to find out..........
Stack trace is different, still illegal state exception, interesting though is the 
"Caused by: java.lang.ClassNotFoundException: org.apache.log4j.spi.NOPLoggerRepository". Exists in the JAR but obviously looking for it at the wrong classloader level.




  | INFO: Illegal access: this web application instance has been stopped already.  Could not load org.apache.log4j.spi.NOPLoggerRepository.  The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
  | java.lang.IllegalStateException
  |         at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1244)
  |         at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
  |         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
  |         at org.apache.log4j.LogManager.getLoggerRepository(LogManager.java:175)
  |         at org.apache.log4j.LogManager.getLogger(LogManager.java:199)
  |         at org.apache.log4j.Logger.getLogger(Logger.java:105)
  |         at org.apache.commons.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:283)
  |         at org.apache.commons.logging.impl.Log4JLogger.debug(Log4JLogger.java:171)
  |         at org.jboss.cache.eviction.BaseEvictionAlgorithm.initialize(BaseEvictionAlgorithm.java:81)
  |         at org.jboss.cache.eviction.BaseEvictionAlgorithm.process(BaseEvictionAlgorithm.java:106)
  |         at org.jboss.cache.eviction.EvictionTimerTask.handleRegion(EvictionTimerTask.java:133)
  |         at org.jboss.cache.eviction.EvictionTimerTask.processRegions(EvictionTimerTask.java:118)
  |         at org.jboss.cache.eviction.EvictionTimerTask.access$000(EvictionTimerTask.java:28)
  |         at org.jboss.cache.eviction.EvictionTimerTask$1.run(EvictionTimerTask.java:106)
  |         at java.util.TimerThread.mainLoop(Timer.java:512)
  |         at java.util.TimerThread.run(Timer.java:462)
  | Exception in thread "EvictionTimer-0" java.lang.NoClassDefFoundError: org/apache/log4j/spi/NOPLoggerRepository
  |         at org.apache.log4j.LogManager.getLoggerRepository(LogManager.java:175)
  |         at org.apache.log4j.LogManager.getLogger(LogManager.java:199)
  |         at org.apache.log4j.Logger.getLogger(Logger.java:105)
  |         at org.apache.commons.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:283)
  |         at org.apache.commons.logging.impl.Log4JLogger.debug(Log4JLogger.java:171)
  |         at org.jboss.cache.eviction.BaseEvictionAlgorithm.initialize(BaseEvictionAlgorithm.java:81)
  |         at org.jboss.cache.eviction.BaseEvictionAlgorithm.process(BaseEvictionAlgorithm.java:106)
  |         at org.jboss.cache.eviction.EvictionTimerTask.handleRegion(EvictionTimerTask.java:133)
  |         at org.jboss.cache.eviction.EvictionTimerTask.processRegions(EvictionTimerTask.java:118)
  |         at org.jboss.cache.eviction.EvictionTimerTask.access$000(EvictionTimerTask.java:28)
  |         at org.jboss.cache.eviction.EvictionTimerTask$1.run(EvictionTimerTask.java:106)
  |         at java.util.TimerThread.mainLoop(Timer.java:512)
  |         at java.util.TimerThread.run(Timer.java:462)
  | Caused by: java.lang.ClassNotFoundException: org.apache.log4j.spi.NOPLoggerRepository
  |         at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
  |         at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
  |         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
  |         ... 13 more
  | log4j:ERROR Error occured while converting date.
  | java.lang.NullPointerException
  |         at java.lang.System.arraycopy(Native Method)
  |         at java.lang.AbstractStringBuilder.getChars(AbstractStringBuilder.java:328)
  |         at java.lang.StringBuffer.getChars(StringBuffer.java:201)
  |         at org.apache.log4j.helpers.AbsoluteTimeDateFormat.format(AbsoluteTimeDateFormat.java:119)
  |         at java.text.DateFormat.format(DateFormat.java:316)
  |         at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert(PatternParser.java:444)
  |         at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:65)
  |         at org.apache.log4j.PatternLayout.format(PatternLayout.java:502)
  |         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:302)
  |         at org.apache.log4j.DailyRollingFileAppender.subAppend(DailyRollingFileAppender.java:359)
  |         at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
  |         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
  |         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
  |         at org.apache.log4j.Category.callAppenders(Category.java:206)
  |         at org.apache.log4j.Category.forcedLog(Category.java:391)
  |         at org.apache.log4j.Category.log(Category.java:856)
  |         at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:251)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:389)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  | 26.09.2008 11:52:52 org.apache.catalina.loader.WebappClassLoader loadClass
  | INFO: Illegal access: this web application instance has been stopped already.  Could not load java.io.LineNumberReader.  The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
  | java.lang.IllegalStateException
  |         at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1244)
  |         at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
  |         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
  |         at org.apache.log4j.spi.ThrowableInformation.getThrowableStrRep(ThrowableInformation.java:78)
  |         at org.apache.log4j.spi.LoggingEvent.getThrowableStrRep(LoggingEvent.java:407)
  |         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:305)
  |         at org.apache.log4j.DailyRollingFileAppender.subAppend(DailyRollingFileAppender.java:359)
  |         at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
  |         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
  |         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
  |         at org.apache.log4j.Category.callAppenders(Category.java:206)
  |         at org.apache.log4j.Category.forcedLog(Category.java:391)
  |         at org.apache.log4j.Category.log(Category.java:856)
  |         at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:251)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:389)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  | log4j:ERROR Error occured while converting date.
  | java.lang.NullPointerException
  |         at java.lang.System.arraycopy(Native Method)
  |         at java.lang.AbstractStringBuilder.getChars(AbstractStringBuilder.java:328)
  |         at java.lang.StringBuffer.getChars(StringBuffer.java:201)
  |         at org.apache.log4j.helpers.AbsoluteTimeDateFormat.format(AbsoluteTimeDateFormat.java:119)
  |         at java.text.DateFormat.format(DateFormat.java:316)
  |         at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert(PatternParser.java:444)
  |         at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:65)
  |         at org.apache.log4j.PatternLayout.format(PatternLayout.java:502)
  |         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:302)
  |         at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
  |         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
  |         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
  |         at org.apache.log4j.Category.callAppenders(Category.java:206)
  |         at org.apache.log4j.Category.forcedLog(Category.java:391)
  |         at org.apache.log4j.Category.log(Category.java:856)
  |         at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:251)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:389)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  |  [Timer,10.251.153.36:1897] ERROR protocols.PING  - failed sending discovery request
  | java.lang.NullPointerException
  |         at org.apache.log4j.Category.isEnabledFor(Category.java:749)
  |         at org.apache.commons.logging.impl.Log4JLogger.isTraceEnabled(Log4JLogger.java:327)
  |         at org.jgroups.protocols.TP.down(TP.java:1008)
  |         at org.jgroups.protocols.PING.sendMcastDiscoveryRequest(PING.java:220)
  |         at org.jgroups.protocols.PING.sendGetMembersRequest(PING.java:214)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:385)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  | log4j:ERROR Error occured while converting date.
  | java.lang.NullPointerException
  |         at java.lang.System.arraycopy(Native Method)
  |         at java.lang.AbstractStringBuilder.getChars(AbstractStringBuilder.java:328)
  |         at java.lang.StringBuffer.getChars(StringBuffer.java:201)
  |         at org.apache.log4j.helpers.AbsoluteTimeDateFormat.format(AbsoluteTimeDateFormat.java:119)
  |         at java.text.DateFormat.format(DateFormat.java:316)
  |         at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert(PatternParser.java:444)
  |         at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:65)
  |         at org.apache.log4j.PatternLayout.format(PatternLayout.java:502)
  |         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:302)
  |         at org.apache.log4j.DailyRollingFileAppender.subAppend(DailyRollingFileAppender.java:359)
  |         at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
  |         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
  |         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
  |         at org.apache.log4j.Category.callAppenders(Category.java:206)
  |         at org.apache.log4j.Category.forcedLog(Category.java:391)
  |         at org.apache.log4j.Category.log(Category.java:856)
  |         at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:251)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:389)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  | log4j:ERROR Error occured while converting date.
  | java.lang.NullPointerException
  |         at java.lang.System.arraycopy(Native Method)
  |         at java.lang.AbstractStringBuilder.getChars(AbstractStringBuilder.java:328)
  |         at java.lang.StringBuffer.getChars(StringBuffer.java:201)
  |         at org.apache.log4j.helpers.AbsoluteTimeDateFormat.format(AbsoluteTimeDateFormat.java:119)
  |         at java.text.DateFormat.format(DateFormat.java:316)
  |         at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert(PatternParser.java:444)
  |         at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:65)
  |         at org.apache.log4j.PatternLayout.format(PatternLayout.java:502)
  |         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:302)
  |         at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
  |         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
  |         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
  |         at org.apache.log4j.Category.callAppenders(Category.java:206)
  |         at org.apache.log4j.Category.forcedLog(Category.java:391)
  |         at org.apache.log4j.Category.log(Category.java:856)
  |         at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:251)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:389)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  |  [Timer,10.251.153.36:1899] ERROR protocols.PING  - failed sending discovery request
  | java.lang.NullPointerException
  |         at org.apache.log4j.Category.isEnabledFor(Category.java:749)
  |         at org.apache.commons.logging.impl.Log4JLogger.isTraceEnabled(Log4JLogger.java:327)
  |         at org.jgroups.protocols.TP.down(TP.java:1008)
  |         at org.jgroups.protocols.PING.sendMcastDiscoveryRequest(PING.java:220)
  |         at org.jgroups.protocols.PING.sendGetMembersRequest(PING.java:214)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:385)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  | log4j:ERROR Error occured while converting date.
  | java.lang.NullPointerException
  |         at java.lang.System.arraycopy(Native Method)
  |         at java.lang.AbstractStringBuilder.getChars(AbstractStringBuilder.java:328)
  |         at java.lang.StringBuffer.getChars(StringBuffer.java:201)
  |         at org.apache.log4j.helpers.AbsoluteTimeDateFormat.format(AbsoluteTimeDateFormat.java:119)
  |         at java.text.DateFormat.format(DateFormat.java:316)
  |         at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert(PatternParser.java:444)
  |         at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:65)
  |         at org.apache.log4j.PatternLayout.format(PatternLayout.java:502)
  |         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:302)
  |         at org.apache.log4j.DailyRollingFileAppender.subAppend(DailyRollingFileAppender.java:359)
  |         at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
  |         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
  |         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
  |         at org.apache.log4j.Category.callAppenders(Category.java:206)
  |         at org.apache.log4j.Category.forcedLog(Category.java:391)
  |         at org.apache.log4j.Category.log(Category.java:856)
  |         at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:251)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:389)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  | log4j:ERROR Error occured while converting date.
  | java.lang.NullPointerException
  |         at java.lang.System.arraycopy(Native Method)
  |         at java.lang.AbstractStringBuilder.getChars(AbstractStringBuilder.java:328)
  |         at java.lang.StringBuffer.getChars(StringBuffer.java:201)
  |         at org.apache.log4j.helpers.AbsoluteTimeDateFormat.format(AbsoluteTimeDateFormat.java:119)
  |         at java.text.DateFormat.format(DateFormat.java:316)
  |         at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert(PatternParser.java:444)
  |         at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:65)
  |         at org.apache.log4j.PatternLayout.format(PatternLayout.java:502)
  |         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:302)
  |         at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
  |         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
  |         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
  |         at org.apache.log4j.Category.callAppenders(Category.java:206)
  |         at org.apache.log4j.Category.forcedLog(Category.java:391)
  |         at org.apache.log4j.Category.log(Category.java:856)
  |         at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:251)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:389)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  |  [Timer,10.251.153.36:1897] ERROR protocols.PING  - failed sending discovery request
  | java.lang.NullPointerException
  |         at org.apache.log4j.Category.isEnabledFor(Category.java:749)
  |         at org.apache.commons.logging.impl.Log4JLogger.isTraceEnabled(Log4JLogger.java:327)
  |         at org.jgroups.protocols.TP.down(TP.java:1008)
  |         at org.jgroups.protocols.PING.sendMcastDiscoveryRequest(PING.java:220)
  |         at org.jgroups.protocols.PING.sendGetMembersRequest(PING.java:214)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:385)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  | log4j:ERROR Error occured while converting date.
  | java.lang.NullPointerException
  |         at java.lang.System.arraycopy(Native Method)
  |         at java.lang.AbstractStringBuilder.getChars(AbstractStringBuilder.java:328)
  |         at java.lang.StringBuffer.getChars(StringBuffer.java:201)
  |         at org.apache.log4j.helpers.AbsoluteTimeDateFormat.format(AbsoluteTimeDateFormat.java:119)
  | 
  |         at java.text.DateFormat.format(DateFormat.java:316)
  |         at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert(PatternParser.java:444)
  |         at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:65)
  |         at org.apache.log4j.PatternLayout.format(PatternLayout.java:502)
  |         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:302)
  |         at org.apache.log4j.DailyRollingFileAppender.subAppend(DailyRollingFileAppender.java:359)
  |         at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
  |         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
  |         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
  |         at org.apache.log4j.Category.callAppenders(Category.java:206)
  |         at org.apache.log4j.Category.forcedLog(Category.java:391)
  |         at org.apache.log4j.Category.log(Category.java:856)
  |         at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:251)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:389)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  | log4j:ERROR Error occured while converting date.
  | java.lang.NullPointerException
  |         at java.lang.System.arraycopy(Native Method)
  |         at java.lang.AbstractStringBuilder.getChars(AbstractStringBuilder.java:328)
  |         at java.lang.StringBuffer.getChars(StringBuffer.java:201)
  |         at org.apache.log4j.helpers.AbsoluteTimeDateFormat.format(AbsoluteTimeDateFormat.java:119)
  |         at java.text.DateFormat.format(DateFormat.java:316)
  |         at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert(PatternParser.java:444)
  |         at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:65)
  |         at org.apache.log4j.PatternLayout.format(PatternLayout.java:502)
  |         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:302)
  |         at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
  |         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
  |         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
  |         at org.apache.log4j.Category.callAppenders(Category.java:206)
  |         at org.apache.log4j.Category.forcedLog(Category.java:391)
  |         at org.apache.log4j.Category.log(Category.java:856)
  |         at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:251)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:389)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)
  |  [Timer,10.251.153.36:1899] ERROR protocols.PING  - failed sending discovery request
  | java.lang.NullPointerException
  |         at org.apache.log4j.Category.isEnabledFor(Category.java:749)
  |         at org.apache.commons.logging.impl.Log4JLogger.isTraceEnabled(Log4JLogger.java:327)
  |         at org.jgroups.protocols.TP.down(TP.java:1008)
  |         at org.jgroups.protocols.PING.sendMcastDiscoveryRequest(PING.java:220)
  |         at org.jgroups.protocols.PING.sendGetMembersRequest(PING.java:214)
  |         at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:385)
  |         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
  |         at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
  |         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
  |         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
  |         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
  |         at java.lang.Thread.run(Thread.java:619)

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