Error Cluster BEA-000140 Failed to deserialize statedump from server

The Error could look something similar to below on managed server log file:


<Error> <Cluster> <BEA-000140> <Failed to deserialize statedump from server 2880051432324383502S:158.151.155.53:[8503,8503,-1,-1,-1,-1,-1]:soa_domain:soa_server1 with java.lang.ClassNotFoundException: oracle.bpm.bpmn.engine.instancemanagement.ejb.IInternalInstanceManagementServiceRemote.
java.lang.ClassNotFoundException: oracle.bpm.bpmn.engine.instancemanagement.ejb.IInternalInstanceManagementServiceRemote
        at weblogic.application.internal.AppClassLoaderManagerImpl.loadApplicationClass(AppClassLoaderManagerImpl.java:154)
        at weblogic.common.internal.ProxyClassResolver.resolveProxyClass(ProxyClassResolver.java:68)
        at weblogic.common.internal.WLObjectInputStream.resolveProxyClass(WLObjectInputStream.java:76)
        at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1531)
        at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1493)
        Truncated. see log file for complete stacktrace


Reason:
Corrupted files due to temporary communication failure between WebLogic admin and managed server instances. This also happens if one of the server node was down for longer time.


Solution:
1. Shut Down Weblogic Managed/Admin Server
2.Delete the directory under $DOMAIN_HOME/servers/<SOA_SERVER1>/tmp/ and $DOMAIN_HOME/servers/<SOA_SERVER1>/cache/ 
3.Restart Admin/Managed servers. The file will create automatically.