docs: static void rcvRollbackTransaction(CommsByteBuffer request, Conversation conversation,
                                        int requestNumber, boolean allocatedFromBufferPool,
                                        boolean partOfExchange)
     {
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(tc, "rcvRollbackTransaction",
                                             new Object[]
                                             {
                                                request,
                                                conversation,
                                                ""+requestNumber,
                                                ""+allocatedFromBufferPool
                                              });
  
        short connectionObjectId = request.getShort();  // BIT16 ConnectionObjectId
        int clientTransactionId = request.getInt();     // BIT32 Client transaction Id
  
        if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())
        {
           SibTr.debug(tc, "SICoreConnection Id:", connectionObjectId);
           SibTr.debug(tc, "Client transaction Id:", clientTransactionId);
        }
  
        try
        {
           // Get the transaction out of the table
           ServerLinkLevelState linkState = (ServerLinkLevelState) conversation.getLinkLevelAttachment();
           SITransaction tran = linkState.getTransactionTable().get(clientTransactionId);
  
           if (tran == IdToTransactionTable.INVALID_TRANSACTION)
           {
              Throwable e = linkState.getTransactionTable().getExceptionForRollbackOnlyLocalTransaction(clientTransactionId);
  
              //Remove transaction from the table
              linkState.getTransactionTable().removeLocalTransaction(clientTransactionId);
  
              if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) SibTr.debug(tc, "Looks like the transaction failed to create", e);
           }
           else
           {
              // At this point here the transaction will only be rolled back.
              // Therefore, any subsequent operations will be invalid and will be thrown out
              // by the client. As such, remove it from the table.
              linkState.getTransactionTable().removeLocalTransaction(clientTransactionId);
  
              SIUncoordinatedTransaction siTran = (SIUncoordinatedTransaction)tran;
              siTran.rollback();
           }
  
           try
           {
              conversation.send(poolManager.allocate(),
                                JFapChannelConstants.SEG_ROLLBACK_TRANSACTION_R,
                                requestNumber,
                                JFapChannelConstants.PRIORITY_MEDIUM,
                                true,
                                ThrottlingPolicy.BLOCK_THREAD,
                                null);
           }
           catch (SIException e)
           {
              FFDCFilter.processException(e,
                                          CLASS_NAME + ".rcvRollbackTransaction",
                                          CommsConstants.STATICCATTRANSACTION_ROLLBACK_01);
  
              if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) SibTr.debug(tc, e.getMessage(), e);
  
              SibTr.error(tc, "COMMUNICATION_ERROR_SICO2026", e);
           }
        }
        catch (SIException e)
        {
           //No FFDC code needed
           //Only FFDC if we haven't received a meTerminated event.
           if(!((ConversationState)conversation.getAttachment()).hasMETerminated())
           {
              FFDCFilter.processException(e,
                                         CLASS_NAME + ".rcvRollbackTransaction",
                                         CommsConstants.STATICCATTRANSACTION_ROLLBACK_02);
           }
  
           if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) SibTr.debug(tc, e.getMessage(), e);
  
           StaticCATHelper.sendExceptionToClient(e,
                                                 CommsConstants.STATICCATTRANSACTION_ROLLBACK_02,
                                                 conversation, requestNumber);
        }
  
        request.release(allocatedFromBufferPool);
  
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(tc, "rcvRollbackTransaction");
     }