WebLogic Server Administration Console Goes Into Hung State (Doc ID 1326104.1)

Symptoms

The WebLogic Server Administration Console goes into hung state and takes time for any navigation. From the thread dumps, the threads are getting blocked at:

"[ACTIVE] ExecuteThread: '15' for queue: 'weblogic.kernel.Default (self-tuning)'" id=xx idx=0xf0 tid=<tid> prio=5 alive, in native, blocked, daemon
-- Blocked trying to get lock: weblogic/servlet/internal/WebAppServletContext@0x4332e7b0[fat lock]
at jrockit/vm/Threads.waitForUnblockSignal()V(Native Method)
at jrockit/vm/Locks.fatLockBlockOrSpin(Locks.java:1675)[optimized]
at jrockit/vm/Locks.lockFat(Locks.java:1776)[optimized]
at jrockit/vm/Locks.monitorEnterSecondStageHard(Locks.java:1312)[optimized]
at jrockit/vm/Locks.monitorEnterSecondStage(Locks.java:1259)[optimized]
at jrockit/vm/Locks.monitorEnter(Locks.java:2456)[optimized]
at weblogic/servlet/internal/ServletStubImpl.onAddToMapException(ServletStubImpl.java:361)
at weblogic/servlet/internal/ServletStubImpl.execute(ServletStubImpl.java:318)

Also, the object WebAppServletContext is waiting for the bootstrap method.

"[ACTIVE] ExecuteThread: '12' for queue: 'weblogic.kernel.Default (self-tuning)'" id=xx idx=0xe4 tid=<tid> prio=5 alive, in native, waiting, daemon
-- Waiting for notification on: java/lang/Object@0x44116170[fat lock]
at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
at java/lang/Object.wait(J)V(Native Method)[optimized]
at weblogic/rjvm/ConnectionManager.bootstrap(ConnectionManager.java:401)
^-- Lock released while waiting: java/lang/Object@0x44116170[fat lock]
at weblogic/rjvm/RJVMImpl.ensureConnectionEstablished(RJVMImpl.java:303)[etc.]

Cause

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