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