code: public void containerTxCompleted(ContainerTx containerTx) {
          final boolean isTraceOn = TraceComponent.isAnyTracingEnabled(); // d532639.2
  
          if (isTraceOn && tc.isEntryEnabled())
              Tr.entry(tc, "containerTxCompleted (" +
                           ContainerTx.uowIdToString(containerTx.ivTxKey) + ")");
  
          // Release any Option A locks not released as part of normal afterCompletion
          // processing.  This serves as a way to release locks from failed bean
          // creates (DuplicateKeyExceptions) and internal Container problems. d110984
          if (lockManager != null)//added 173022.11
              lockManager.unlock(containerTx);
  
          if (isTraceOn && tc.isEntryEnabled())
              Tr.exit(tc, "containerTxCompleted");
      }
docs: Tell the container that the given container transaction has
  completed. <p>