Stuck Threads in OIM (11.1.2.2) server

In OIM-OAM-OUD (or any directory) integrated environment if you see stuck threads in OIM servers and in threads dump you see the below error, Then apply the oracle patch 19939451 on oracle_common folder of OIM middleware.

[ACTIVE] ExecuteThread: '37' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon prio=10 tid=0x00007f2de401e000 nid=0x7de4 waiting on condition [0x00007f2de0986000]
   java.lang.Thread.State: WAITING (parking)
 at sun.misc.Unsafe.park(Native Method)
 - parking to wait for  <0x00000005ae41a948> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
 at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
 at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
 at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:964)
 at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1282)
 at java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:731)
 at oracle.ods.virtualization.engine.backend.jndi.JNDIConnectionPool.getLdapContext(JNDIConnectionPool.java:272)
 at oracle.ods.virtualization.engine.backend.jndi.JNDIConnectionPool.checkOutContext(JNDIConnectionPool.java:226)
 at oracle.ods.virtualization.engine.backend.jndi.BackendJNDI.getLDAPContext(BackendJNDI.java:1068)
 at oracle.ods.virtualization.engine.backend.jndi.BackendJNDI.getConnection(BackendJNDI.java:969)
 at oracle.ods.virtualization.engine.backend.jndi.ConnectionHandle.getHolder(ConnectionHandle.java:445)
 at oracle.ods.virtualization.engine.backend.jndi.ConnectionHandle.search(ConnectionHandle.java:268)
 at oracle.ods.virtualization.engine.backend.jndi.JNDIEntrySet.initialize(JNDIEntrySet.java:221)
 at oracle.ods.virtualization.engine.backend.jndi.BackendJNDI.get(BackendJNDI.java:765)
 at oracle.ods.virtualization.engine.chain.Chain.nextGet(Chain.java:303)