code: public void assertValidControllable() throws SIMPControllableNotFoundException
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "checkValidControllable");
      
      if(referenceItemStream == null || !referenceItemStream.isInStore())
      {
        SIMPControllableNotFoundException finalE =
          new SIMPControllableNotFoundException(
            nls.getFormattedMessage(
              "INTERNAL_MESSAGING_ERROR_CWSIP0005",
              new Object[] {"LocalSubscriptionControl.assertValidControllable",
                            "1:448:1.36",
                            referenceItemStream},
              null));
              
        SibTr.exception(tc, finalE);
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
          SibTr.exception(tc, finalE);
        throw finalE; 
      }
      
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.exit(tc, "checkValidControllable");
    }
docs: /* (non-Javadoc)
  @see com.ibm.ws.sib.processor.runtime.AbstractControllable#checkValidControllable()