New subject: [JBoss JIRA] Updated: (JBCACHE-1212) ClassNotFoundException when connecting to exisiting cache

Thursday, 8 November 2007

ClassNotFoundException when connecting to exisiting cache
---------------------------------------------------------

                 Key: JBCACHE-1212
                 URL: http://jira.jboss.com/jira/browse/JBCACHE-1212
             Project: JBoss Cache
          Issue Type: Bug
      Security Level: Public (Everyone can see)
    Affects Versions: 2.0.0.GA
         Environment: Java 1.6.0_02; dependencies according to POM, except JGroups
2.5.0GA; Win XP SP2 fully patched
            Reporter: Carl Shelbourne
         Assigned To: Manik Surtani

When running internal tests for our application we spotted the following exceptions.

The method within our code, _remove() provides a simple check before removing from the
cache:

...
protected void _remove( final Fqn fqn ) throws CacheException
    {
        if ( getTreeCache().getRoot().hasChild( fqn ) )
        {
            getTreeCache().removeNode( fqn );
            getFqnList().remove( fqn );
        }
    }
...

All the code appears to work ok, with the exception of when a we try to connect to an
existing cache, from observations, once the cache is started we seem to get this
exception. It is difficult to establish the exact cause, but it seems that a remove has
been called before all the classes are instantiated??? Not sure, sorry.

Exception in thread "Thread-166" java.lang.RuntimeException:
java.lang.ClassNotFoundException: [Ljava.lang.StackTraceElement;
	at org.jboss.cache.CacheImpl.invokeMethod(CacheImpl.java:3951)
	at org.jboss.cache.CacheImpl.remove(CacheImpl.java:1637)
	at org.jboss.cache.CacheImpl.removeNode(CacheImpl.java:4376)
	at uk.org.netvu.common.edp.db.cache.CachedDBTable._remove(CachedDBTable.java:235)
	at uk.org.netvu.common.edp.db.cache.MutableAlarmTable.remove(MutableAlarmTable.java:52)
	at
uk.org.netvu.edp2.db.helpers.Edp2DbAlarmActionHelper.removeSessionFromCache(Edp2DbAlarmActionHelper.java:75)
	at
uk.org.netvu.edp2.db.Edp2DbManager$RemoveAlarmSessionFromCacheTask$1.run(Edp2DbManager.java:1835)
Caused by: java.lang.ClassNotFoundException: [Ljava.lang.StackTraceElement;
	at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
	at
org.jboss.util.stream.MarshalledValueInputStream.resolveClass(MarshalledValueInputStream.java:58)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
	at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1624)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	at
org.jboss.cache.marshall.CacheMarshaller200.unmarshallObject(CacheMarshaller200.java:537)
	at
org.jboss.cache.marshall.CacheMarshaller200.objectFromObjectStreamRegionBased(CacheMarshaller200.java:191)
	at
org.jboss.cache.marshall.CacheMarshaller200.objectFromObjectStream(CacheMarshaller200.java:142)
	at
org.jboss.cache.marshall.VersionAwareMarshaller.objectFromByteBuffer(VersionAwareMarshaller.java:154)
	at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:544)
	at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:365)
	at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:736)
	at org.jgroups.JChannel.up(JChannel.java:1063)
	at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:325)
	at org.jgroups.protocols.pbcast.FLUSH.up(FLUSH.java:406)
	at
org.jgroups.protocols.pbcast.STREAMING_STATE_TRANSFER.up(STREAMING_STATE_TRANSFER.java:255)
	at org.jgroups.protocols.FRAG2.up(FRAG2.java:197)
	at org.jgroups.protocols.pbcast.GMS.up(GMS.java:722)
	at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:234)
	at org.jgroups.protocols.UNICAST.handleDataReceived(UNICAST.java:569)
	at org.jgroups.protocols.UNICAST.up(UNICAST.java:246)
	at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:596)
	at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:167)
	at org.jgroups.protocols.FD.up(FD.java:322)
	at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:298)
	at org.jgroups.protocols.MERGE2.up(MERGE2.java:145)
	at org.jgroups.protocols.Discovery.up(Discovery.java:220)
	at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1486)
	at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1440)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
	at java.lang.Thread.run(Thread.java:619)
Exception in thread "Thread-167" java.lang.RuntimeException:
java.lang.ClassNotFoundException: [Ljava.lang.StackTraceElement;
	at org.jboss.cache.CacheImpl.invokeMethod(CacheImpl.java:3951)
	at org.jboss.cache.CacheImpl.remove(CacheImpl.java:1637)
	at org.jboss.cache.CacheImpl.removeNode(CacheImpl.java:4376)
	at uk.org.netvu.common.edp.db.cache.CachedDBTable._remove(CachedDBTable.java:235)
	at uk.org.netvu.common.edp.db.cache.MutableAlarmTable.remove(MutableAlarmTable.java:52)
	at
uk.org.netvu.edp2.db.helpers.Edp2DbAlarmActionHelper.removeSessionFromCache(Edp2DbAlarmActionHelper.java:75)
	at
uk.org.netvu.edp2.db.Edp2DbManager$RemoveAlarmSessionFromCacheTask$1.run(Edp2DbManager.java:1835)
Exception in thread "Thread-168" Caused by: java.lang.ClassNotFoundException:
[Ljava.lang.StackTraceElement;
	at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
	at
org.jboss.util.stream.MarshalledValueInputStream.resolveClass(MarshalledValueInputStream.java:58)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
	at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1624)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	at
org.jboss.cache.marshall.CacheMarshaller200.unmarshallObject(CacheMarshaller200.java:537)
	at
org.jboss.cache.marshall.CacheMarshaller200.objectFromObjectStreamRegionBased(CacheMarshaller200.java:191)
	at
org.jboss.cache.marshall.CacheMarshaller200.objectFromObjectStream(CacheMarshaller200.java:142)
	at
org.jboss.cache.marshall.VersionAwareMarshaller.objectFromByteBuffer(VersionAwareMarshaller.java:154)
	at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:544)
	at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:365)
	at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:736)
	at org.jgroups.JChannel.up(JChannel.java:1063)
	at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:325)
	at org.jgroups.protocols.pbcast.FLUSH.up(FLUSH.java:406)
	at
org.jgroups.protocols.pbcast.STREAMING_STATE_TRANSFER.up(STREAMING_STATE_TRANSFER.java:255)
	at org.jgroups.protocols.FRAG2.up(FRAG2.java:197)
	at org.jgroups.protocols.pbcast.GMS.up(GMS.java:722)
	at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:234)
	at org.jgroups.protocols.UNICAST.handleDataReceived(UNICAST.java:569)
	at org.jgroups.protocols.UNICAST.up(UNICAST.java:246)
	at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:596)
	at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:167)
	at org.jgroups.protocols.FD.up(FD.java:322)
	at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:298)
	at org.jgroups.protocols.MERGE2.up(MERGE2.java:145)
	at org.jgroups.protocols.Discovery.up(Discovery.java:220)
	at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1486)
	at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1440)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
	at java.lang.Thread.run(Thread.java:619)
java.lang.RuntimeException: java.lang.ClassNotFoundException:
[Ljava.lang.StackTraceElement;
	at org.jboss.cache.CacheImpl.invokeMethod(CacheImpl.java:3951)
	at org.jboss.cache.CacheImpl.remove(CacheImpl.java:1637)
	at org.jboss.cache.CacheImpl.removeNode(CacheImpl.java:4376)
	at uk.org.netvu.common.edp.db.cache.CachedDBTable._remove(CachedDBTable.java:235)
	at uk.org.netvu.common.edp.db.cache.MutableAlarmTable.remove(MutableAlarmTable.java:52)
	at
uk.org.netvu.edp2.db.helpers.Edp2DbAlarmActionHelper.removeSessionFromCache(Edp2DbAlarmActionHelper.java:75)
	at
uk.org.netvu.edp2.db.Edp2DbManager$RemoveAlarmSessionFromCacheTask$1.run(Edp2DbManager.java:1835)
Caused by: java.lang.ClassNotFoundException: [Ljava.lang.StackTraceElement;
	at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
	at
org.jboss.util.stream.MarshalledValueInputStream.resolveClass(MarshalledValueInputStream.java:58)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
	at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1624)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	at
org.jboss.cache.marshall.CacheMarshaller200.unmarshallObject(CacheMarshaller200.java:537)
	at
org.jboss.cache.marshall.CacheMarshaller200.objectFromObjectStreamRegionBased(CacheMarshaller200.java:191)
	at
org.jboss.cache.marshall.CacheMarshaller200.objectFromObjectStream(CacheMarshaller200.java:142)
	at
org.jboss.cache.marshall.VersionAwareMarshaller.objectFromByteBuffer(VersionAwareMarshaller.java:154)
	at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:544)
	at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:365)
	at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:736)
	at org.jgroups.JChannel.up(JChannel.java:1063)
	at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:325)
	at org.jgroups.protocols.pbcast.FLUSH.up(FLUSH.java:406)
	at
org.jgroups.protocols.pbcast.STREAMING_STATE_TRANSFER.up(STREAMING_STATE_TRANSFER.java:255)
	at org.jgroups.protocols.FRAG2.up(FRAG2.java:197)
	at org.jgroups.protocols.pbcast.GMS.up(GMS.java:722)
	at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:234)
	at org.jgroups.protocols.UNICAST.handleDataReceived(UNICAST.java:569)
	at org.jgroups.protocols.UNICAST.up(UNICAST.java:246)
	at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:596)
	at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:167)
	at org.jgroups.protocols.FD.up(FD.java:322)
	at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:298)
	at org.jgroups.protocols.MERGE2.up(MERGE2.java:145)
	at org.jgroups.protocols.Discovery.up(Discovery.java:220)
	at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1486)
	at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1440)
	at java.util.concurrent.ThreadPoolExecutor$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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[JBoss JIRA] Created: (JBCACHE-1212) ClassNotFoundException when connecting to exisiting cache