code: private static boolean isRunningInWAS() {
          if (TraceComponent.isAnyTracingEnabled() && TRACE.isEntryEnabled()) {
              SibTr.entry(TRACE, "isRunningInWAS");
          }
  
          if (inWAS == null) {
              inWAS = Boolean.TRUE;
          }
  
          if (TraceComponent.isAnyTracingEnabled() && TRACE.isEntryEnabled()) {
              SibTr.exit(TRACE, "isRunningInWAS", inWAS);
          }
          return inWAS.booleanValue();
      }
docs: Returns true if running in WAS. The check is to see if com.ibm.tx.jta.Transaction.TransactionManagerFactory
  is on the classpath.
  
  @return if running in WAS