JBoss marshalling fail if java.util.concurrent.PriorityBlockingQueue is used in custom objects which need to be serialized in EAP

Solution Verified - Updated -

Issue

  • java.util.concurrent.PriorityBlockingQueue implements Serializable from the API but if object should be serialized for an EAP application it throws a NullPointerException with the cause like below.
ERROR [stderr] (EJB default - 2) Caused by: java.lang.NullPointerException
ERROR [stderr] (EJB default - 2)    at java.util.concurrent.PriorityBlockingQueue.readObject(PriorityBlockingQueue.java:943)
ERROR [stderr] (EJB default - 2)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
ERROR [stderr] (EJB default - 2)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
ERROR [stderr] (EJB default - 2)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
ERROR [stderr] (EJB default - 2)    at java.lang.reflect.Method.invoke(Method.java:498)
ERROR [stderr] (EJB default - 2)    at org.jboss.marshalling.reflect.SerializableClass.callReadObject(SerializableClass.java:307)

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP)
    • 6.4
    • 7.0

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