docs: public void commit(Xid xid, boolean onePhase) throws XAException
     {
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(this, tc, "commit",
                                             new Object[] {xid, ""+onePhase});
        
        internalCommit(xid, onePhase);
        
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(this, tc, "commit");
     }