docs: protected void incremenetMessageBatchNumber()
     {
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(this, tc, "incremenetMessageBatchNumber");
        checkNotBrowserSession();                                   // F171893
        this.messageBatchNumber++;
        if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) SibTr.debug(this, tc, "Message batch number is now: " + messageBatchNumber);
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(this, tc, "incremenetMessageBatchNumber");
     }