EAP 7 threads hang in EJBClientInvocationContext.awaitResponse

Solution Unverified - Updated -

Issue

  • Threads hang when trying to call remote EJB:
"default task-32" #122 prio=5 os_prio=0 tid=0x0000000002135000 nid=0x391b in Object.wait() [0x00007ff09b70e000]
   java.lang.Thread.State: WAITING (on object monitor)
       at java.lang.Object.wait(Native Method)
       at java.lang.Object.wait(Object.java:502)
       at org.jboss.ejb.client.EJBClientInvocationContext.awaitResponse(EJBClientInvocationContext.java:413)
       - locked <0x00000000fd41c700> (a java.lang.Object)
       at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:204)
       at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:183)
       at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:146)
       at com.sun.proxy.$Proxy12.getJBossNodeName(Unknown Source)
       at org.jboss.as.quickstarts.web.multi.server.app.Servlet.doGet(Servlet.java:64)
       [...]
  • Many simultaneous calls to servlets each of which invokes a remote EJB causes hang.

Environment

  • Red Hat JBoss Enterprise Application Platform 7

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