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OptionalDataException in WLS 9.2

edited Dec 22, 2011 12:57PM in Oracle Weblogic Server (MOSC) 3 comments
Hi Pal,

Getting the following Exception and this is intermittent on WLS 9.2:

[ERROR] APR-0030002 : Unable to Locate Remote Business Object
java.rmi.UnmarshalException: failed to unmarshal class java.lang.Object; nested exception is:
java.io.OptionalDataException
at weblogic.rjvm.ResponseImpl.unmarshalReturn(ResponseImpl.java:229)
at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:338)
at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:252)

We found few bugs however they have mentioned that this will fix if and only if we use Synchronized HashMap instead of HashMap.

However in production we cannot go ahead make a changes in the HashMap.

Any pointers would be helpful.

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