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java.lang.ClassCastException: weblogic.rmi.internal.MethodDescriptor

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Mirella Agostini

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Nov 16, 2001, 10:55:01 AM11/16/01

Hi,
We have had an hung of a Cluster WLS (3 WLS instances on the same machine) and,
on weblogic.log file, I found the following Exception, I need to know why or the
reasons causing this Exception.

The Exception:

####<16-nov-01 12.07.42 CET> <Warning> <Dispatcher> <front1> <fe1> <ExecuteThrea
d: '78' for queue: 'default'> <> <> <000000> <RuntimeException thrown by rmi ser
ver: 'weblogic.rmi.cluster.ReplicaAwareServerRef@9 - jvmid: '3465855189799897799
S:172.18.8.11:[7001,7001,7002,7002,7001,7002,-1]:fedomain2:fe1', oid: '9', imple
mentation: 'weblogic.jndi.internal.RootNamingNode@606703''>
java.lang.ClassCastException: weblogic.rmi.internal.MethodDescriptor
at weblogic.rjvm.MsgAbbrevInputStream.readClassDescriptor(MsgAbbrevInput
Stream.java:186)
at weblogic.common.internal.ChunkedObjectInputStream$NestedObjectInputSt
ream.readClassDescriptor(ChunkedObjectInputStream.java:290)
at java.io.ObjectInputStream.inputClassDescriptor(ObjectInputStream.java
:906)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:366)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)
at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1186)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:386)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)
at weblogic.common.internal.ChunkedObjectInputStream.readObject(ChunkedO
bjectInputStream.java:107)
at weblogic.common.internal.ChunkedObjectInputStream.readObject(ChunkedO
bjectInputStream.java:115)
at weblogic.jndi.internal.RootNamingNode_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:296)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerR
ef.java:93)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.jav
a:265)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest
java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)

The message appears in the Front-end environment where we only have the Web Applications.

The Front-end is a cluster of three WLS 6.1 (SP1).
The operating system is:

SunOS BACKUP 5.7 Generic_106541-12 sun4u sparc SUNW,Ultra-Enterprise-10000

and java is:

java version "1.3.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1-b24)
Java HotSpot(TM) Client VM (build 1.3.1-b24, mixed mode).

We are in production environment with about 100 web users.
Could you give me an help????

Thanks a lot!
Mirella

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