public void javacWarning(String message,Throwable t){
  messager.printMessage(Diagnostic.Kind.WARNING,message + (t == null ? "" : (": " + t)));
}

public void javacWarning ( String message , Throwable t ) { messager . printMessage ( Diagnostic . Kind . WARNING , message + ( t == null ? "" : ( ": " + t ) ) ) ; }
generates a warning in the messager that was used to initialize this handlerlibrary .
