11 a.m.
Here is what i do:
1/ I'm notified of a topology change in my MembershipListener (which is an inner class
of an MBean)
2/ I call asynchronously (so that i'm no longer in the JGroups thread) a method that
notifies the nodes (via the clustered JMX notification mechanism)
3/ When a node's NotificationListener receives the event, it calls a SLSB entity
finder method (findAllCentreExploitation).
The SLSB is looked up as remote but the call happens on the same node as the
NotificationListener-->the classloading issue doesn't seem to come from a remoting
issue?
It doesn't change anything whether i call the SLSB in a new thread or not, it still
fails loading the entity class.
I'm really stuck here..
Something that could be (is probably) related, I have had classloading issues from a
JGroups thread before, that i worked around by converting the problematic application
object to and from an array of J2SE objects (so no application classloading necessary).
Do i have to tell JBoss to use the right classloader, or what else can i do?
Something else that seems strange that i thought i should mention; it doesn't fail on
all topology changes, only certain ones.
For instance, i have 2 nodes A and B; the successive topologies are:
(A)-->(A,B)-->(B)-->(A,B)
IT ONLY FAILS ON THE LAST TOPOLOGY CHANGE! But maybe that's not important and the real
solution is doing something about the classloading?
Here is the stacktrace:
17:29:36,315 INFO [STDOUT]
[com.navineo.sa.jmx.ha.taches.ComEmbarquesHAS][IncomingPacketHandler
(channel=PartitionNavineo)] - DEBUT demarrer
| 17:29:36,325 ERROR [STDERR] java.lang.reflect.UndeclaredThrowableException
| 17:29:36,325 ERROR [STDERR] at $Proxy411.findAllCentreExploitation(Unknown Source)
| 17:29:36,325 ERROR [STDERR] at
com.navineo.sa.jmx.ha.taches.DummyTacheEgoiste1HAS$PrintTotoRunnable.run(DummyTacheEgoiste1HAS.java:57)
| 17:29:36,326 ERROR [STDERR] at java.lang.Thread.run(Thread.java:619)
| 17:29:36,326 ERROR [STDERR] Caused by: java.io.IOException
| 17:29:36,326 ERROR [STDERR] at
org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:107)
| 17:29:36,326 ERROR [STDERR] at
org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:269)
| 17:29:36,326 ERROR [STDERR] at
org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:241)
| 17:29:36,326 ERROR [STDERR] at
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:412)
| 17:29:36,326 ERROR [STDERR] at
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:82)
| 17:29:36,326 ERROR [STDERR] at
org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:845)
| 17:29:36,326 ERROR [STDERR] at
org.jboss.serial.io.MarshalledObjectForLocalCalls.get(MarshalledObjectForLocalCalls.java:60)
| 17:29:36,326 ERROR [STDERR] at
org.jboss.ejb3.remoting.IsLocalInterceptor.invokeLocal(IsLocalInterceptor.java:96)
| 17:29:36,326 ERROR [STDERR] at
org.jboss.ejb3.remoting.ClusteredIsLocalInterceptor.invoke(ClusteredIsLocalInterceptor.java:53)
| 17:29:36,326 ERROR [STDERR] at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| 17:29:36,326 ERROR [STDERR] at
org.jboss.ejb3.stateless.StatelessClusteredProxy.invoke(StatelessClusteredProxy.java:112)
| 17:29:36,326 ERROR [STDERR] ... 3 more
| 17:29:36,326 ERROR [STDERR] Caused by: java.lang.reflect.InvocationTargetException
| 17:29:36,326 ERROR [STDERR] at sun.reflect.GeneratedMethodAccessor130.invoke(Unknown
Source)
| 17:29:36,326 ERROR [STDERR] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| 17:29:36,327 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:597)
| 17:29:36,327 ERROR [STDERR] at
org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:103)
| 17:29:36,327 ERROR [STDERR] ... 13 more
| 17:29:36,327 ERROR [STDERR] Caused by: java.io.IOException: No ClassLoaders found for:
com.navineo.dock.commande.unitaire.CentreExploitation
| 17:29:36,327 ERROR [STDERR] at
org.jboss.serial.classmetamodel.ClassMetamodelFactory.getClassMetaData(ClassMetamodelFactory.java:332)
| 17:29:36,327 ERROR [STDERR] at
org.jboss.serial.classmetamodel.StreamingClass.readStream(StreamingClass.java:72)
| 17:29:36,327 ERROR [STDERR] at
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:381)
| 17:29:36,327 ERROR [STDERR] at
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:82)
| 17:29:36,327 ERROR [STDERR] at
org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:845)
| 17:29:36,327 ERROR [STDERR] at
org.jboss.serial.persister.ObjectInputStreamProxy.readObjectOverride(ObjectInputStreamProxy.java:68)
| 17:29:36,327 ERROR [STDERR] at
java.io.ObjectInputStream.readObject(ObjectInputStream.java:345)
| 17:29:36,327 ERROR [STDERR] at java.util.ArrayList.readObject(ArrayList.java:593)
| 17:29:36,327 ERROR [STDERR] ... 17 more
| 17:29:36,327 ERROR [STDERR] Caused by: java.lang.ClassNotFoundException: No
ClassLoaders found for: com.navineo.dock.commande.unitaire.CentreExploitation
| 17:29:36,327 ERROR [STDERR] at
org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:212)
| 17:29:36,327 ERROR [STDERR] at
org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:521)
| 17:29:36,327 ERROR [STDERR] at
org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:415)
| 17:29:36,328 ERROR [STDERR] at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
| 17:29:36,328 ERROR [STDERR] at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
| 17:29:36,328 ERROR [STDERR] at java.lang.Class.forName0(Native Method)
| 17:29:36,328 ERROR [STDERR] at java.lang.Class.forName(Class.java:247)
| 17:29:36,328 ERROR [STDERR] at
org.jboss.serial.classmetamodel.ClassMetamodelFactory.resolveClassByName(ClassMetamodelFactory.java:274)
| 17:29:36,328 ERROR [STDERR] at
org.jboss.serial.classmetamodel.ClassMetamodelFactory.getClassMetaData(ClassMetamodelFactory.java:289)
| 17:29:36,328 ERROR [STDERR] ... 24 more
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