Unsafe.park: Waiting for Synchronistaion

Hi all,

I get in WebLogic Dump the following message and system response too poor. How can I find out the position of issue in application. Any tip for me?

TIMED_WAITING on java.util.concurrent.SynchronousQueue$TransferStack@5cfaf4a2

  

  at sun.misc.Unsafe.park(Native Method)

  - waiting on java.util.concurrent.SynchronousQueue$TransferStack@5cfaf4a2

  at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)

  at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)

  at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359)

  at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942)

  at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)