java.lang.OutOfMemoryError: Java heap space

 ####<Jun 25, 2014 7:17:30 PM SGT> <Error> <Cluster> <lapoid02> <oim_server1> <weblogic.cluster.MessageReceiver> <<WLS Kernel>> <> <a1a043141f07f93c:63d55d3a:1468e87738f:-8000-0000000000011252> <1403695050414> <BEA-003108> <Unicast receive error : java.lang.OutOfMemoryError: Java heap space

java.lang.OutOfMemoryError: Java heap space

Solution:  Just increase the Heap Size with the below guide lines through Weblogic Console

1.       Login to Weblogic Console -> Click on Lock and Edit button -> Go to Environment -> servers -> oim_server1 -> configuration -> server Start and change/update the parameters in "Arguments" field -> Enter the values:   -XX:MaxPermSize=4096m -Xms4096m -Xmx4096m (provide your own values)

2.       Save and Release the Configuration

3.       Restart oim_server1 

If you are still facing the issue, and unable to stop the servers through weblogic console, then you can directly kill the pid’s using the command kill -9 pid