JBoss - Java heap retention in WrapperDataSourceService's 'connectionMap' HashMap

Solution Verified - Updated -

Issue

  • We received a "java.lang.OutOfMemoryError: Java heap space"
  • The heap is consumed in a RMI TCP Connection thread by org.jboss.resource.adapter.jdbc.local.LocalManagedConnection objects stored in the 'connectionMap' java.util.HashMap of a org.jboss.resource.adapter.jdbc.remote.WrapperDataSourceService

Environment

  • JBoss Enterprise Application Platform (EAP) 4.3.0_CP07 and earlier

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