code: public void print(int i) throws IOException
      {      
          if(this._listener!= null &&  !checkIfCalledFromWLonError()){
              if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())    
                  Tr.debug(tc, "non blocking print int , WriteListener enabled: " + this._listener);
              this.print_NonBlocking(Integer.toString(i));
          }
          else {
              if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())    
                  Tr.debug(tc, "print int");
              super.print(i);
          }
      }
docs: /*
  @see javax.servlet.ServletOutputStream#print(int)