if (    (e.getMessage() != null) && (e.getMessage().indexOf("General options") == -1) )
if (    (e.getMessage() == null) || (    (e.getMessage() != null) && (e.getMessage().indexOf("General options") == -1) ) )
  protected static void runClusterer(Clusterer clusterer, String[] options) {    try {      System.out.println(ClusterEvaluation.evaluateClusterer(clusterer, options));    }     catch (Exception e) {      if (    (e.getMessage() != null)	   && (e.getMessage().indexOf("General options") == -1) )	e.printStackTrace();      else	System.err.println(e.getMessage());    }  }