docs: public void println(boolean b) throws IOException
      {    
          if(this._listener!= null &&  !checkIfCalledFromWLonError()){
              if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())    
                  Tr.debug(tc, "non blocking println boolean , WriteListener enabled: " + this._listener);
              
              this.println_NonBlocking(Boolean.toString(b));
          }
          else {
              if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())    
                  Tr.debug(tc, "println boolean");
              super.println(b);
          }
      }