Bugs item #825766, was opened at 2003-10-17 15:32
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Category: JBossServer
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Elias Ross (genman)
Assigned to: Nobody/Anonymous (nobody)
Summary: Classloader Deadlock when logging trace
Initial Comment:
This was caused when trace was enabled. I imagine it
was caused by the classloader trying to load a class
while it was being rendered (?) to disk. Probably not
a big issue, unless trace-logging is enabled.
Java stack information for the threads listed above:
===================================================
"SMPP-TIMER-0":
at
com.logica.smpp.util.ByteBuffer.getHexDump(ByteBuffer.java:379)
at
com.logica.smpp.util.ByteBuffer.toString(ByteBuffer.java:387)
at
org.apache.log4j.or.DefaultRenderer.doRender(DefaultRenderer.java:26)
at
org.apache.log4j.or.RendererMap.findAndRender(RendererMap.java:70)
at
org.apache.log4j.spi.LoggingEvent.getRenderedMessage(LoggingEvent.java:288)
at
org.apache.log4j.helpers.PatternParser$BasicPatternConverter.convert(PatternParser.java:395)
at
org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:56)
at
org.apache.log4j.PatternLayout.format(PatternLayout.java:495)
at
org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:292)
at
org.apache.log4j.WriterAppender.append(WriterAppender.java:150)
at
org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:221)
- locked <0x473874c8> (a
org.apache.log4j.ConsoleAppender)
at
org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:57)
at
org.apache.log4j.Category.callAppenders(Category.java:187)
- locked <0x46829180> (a
org.apache.log4j.spi.RootCategory)
at
org.apache.log4j.Category.forcedLog(Category.java:372)
at
org.apache.log4j.Category.debug(Category.java:241)
at
com.logica.smpp.debug.Log4JDebug.write(Log4JDebug.java:79)
at
com.logica.smpp.TCPIPConnection.send(TCPIPConnection.java:301)
at
com.logica.smpp.Transmitter.send(Transmitter.java:81)
at com.logica.smpp.Session.send(Session.java:983)
at com.logica.smpp.Session.bind(Session.java:452)
at
...
"SMSC-Accept-16910":
at
org.apache.log4j.Category.callAppenders(Category.java:185)
- waiting to lock <0x46829180> (a
org.apache.log4j.spi.RootCategory)
at
org.apache.log4j.Category.forcedLog(Category.java:372)
at org.apache.log4j.Category.log(Category.java:864)
at
org.jboss.logging.Log4jLoggerPlugin.trace(Log4jLoggerPlugin.java:96)
at org.jboss.logging.Logger.trace(Logger.java:113)
at
org.jboss.mx.loading.UnifiedClassLoader3.attempt(UnifiedClassLoader3.java:242)
at
org.jboss.mx.loading.UnifiedClassLoader3.loadClass(UnifiedClassLoader3.java:126)
- locked <0x472e2f38> (a
org.jboss.mx.loading.UnifiedClassLoader3)
at
java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
- locked <0x472e2f38> (a
org.jboss.mx.loading.UnifiedClassLoader3)
at
com.proteusmobile.smsgw.server.ServerService.listen(ServerService.java:187)
at
com.proteusmobile.smsgw.server.ServerService.access$3(ServerService.java:46)
at
com.proteusmobile.smsgw.server.ServerService$Listener.run0(ServerService.java:163)
at
com.proteusmobile.smsgw.server.ServerService$Listener.run(ServerService.java:154)
at java.lang.Thread.run(Thread.java:536)
Found 1 deadlock.
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