code: protected final void unLock(ObjectManagerState objectManagerState)
      {
          synchronized (objectManagerState.transactionUnlockSequenceLock) {
              unlockSequence = objectManagerState.getNewGlobalTransactionUnlockSequence();
              lockingTransaction = null;
          } // synchronized.
      }
docs: Releases the lock on the transaction.
  
  @param objectManagerState within which the transaction is unlocked.