Java high CPU due to concurrent HashMap access in Apache Axis TypeMappingImpl.internalRegister

Solution Verified - Updated -

Issue

  • We are seeing high CPU due to multiple threads accessing the same HashMap at once in Apache Axis TypeMappingImpl, for example:
Thread: http-0.0.0.0-8080-5 state=runnable
    java.util.HashMap.put
    org.apache.axis.encoding.TypeMappingImpl.internalRegister
    org.apache.axis.encoding.TypeMappingImpl.register
    org.apache.axis.encoding.TypeMappingDelegate.register
    org.apache.axis.client.Call.registerTypeMapping
    org.apache.axis.client.Call.registerTypeMapping

Environment

  • JBoss Enterprise Application Platform (EAP)
  • Apache Axis

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