code: @Override
      public SIUncoordinatedTransaction createUncoordinatedTransaction(boolean allowSubordinateResources)
                      throws SIConnectionUnavailableException, SIConnectionDroppedException,
                      SIErrorException
      {
          if (TraceComponent.isAnyTracingEnabled() && CoreSPIConnection.tc.isEntryEnabled())
              SibTr.entry(CoreSPIConnection.tc, "createUncoordinatedTransaction",
                          new Object[] { this, Boolean.valueOf(allowSubordinateResources) });
  
          LocalTransaction tran = null;
  
          // Synchronize on the close object, we don't want the connection closing
          // while we try to add the transaction.
          synchronized (this)
          {
              // See if this connection has been closed
              checkNotClosed();
              checkMPStarted();
  
              //Get a LocalTransaction from the message store (via the MP).
              tran = _txManager.createLocalTransaction(!allowSubordinateResources);
  
              synchronized (_ownedTransactions)
              {
                  // Add this transaction to the connections list in case we need to
                  // clean them up at close time.
                  _ownedTransactions.add(tran);
                  tran.registerCallback(this);
              }
          }
  
          if (TraceComponent.isAnyTracingEnabled() && CoreSPIConnection.tc.isEntryEnabled())
              SibTr.exit(CoreSPIConnection.tc, "createUncoordinatedTransaction", tran);
  
          return tran;
      }
docs: /*
  (non-Javadoc)
  
  @see com.ibm.wsspi.sib.core.SICoreConnection#createUncoordinatedTransaction(boolean)