docs: public void rollbackResources() {
          final boolean traceOn = TraceComponent.isAnyTracingEnabled();
  
          if (traceOn && tc.isEntryEnabled())
              Tr.entry(tc, "rollbackResources");
  
          try {
              final Transaction t = ((EmbeddableTranManagerSet) TransactionManagerFactory.getTransactionManager()).suspend();
              getResources().rollbackResources();
              if (t != null)
                  ((EmbeddableTranManagerSet) TransactionManagerFactory.getTransactionManager()).resume(t);
          } catch (Exception ex) {
              FFDCFilter.processException(ex, "com.ibm.tx.jta.impl.EmbeddableTransactionImpl.rollbackResources", "104", this);
              if (traceOn && tc.isDebugEnabled())
                  Tr.debug(tc, "Exception caught from rollbackResources()", ex);
          }
  
          if (traceOn && tc.isEntryEnabled())
              Tr.exit(tc, "rollbackResources");
      }