I have a lexer, generated with ANTLR. What I try to achive is to handle an error during lexing in case of an not recognized token.

How can I get only the character causing this error?

lexer.addErrorListener(new ANTLRErrorListener() {
  @Override
  public void syntaxError(Recognizer<?, ?> recognizer,  
                          Object offendingSymbol, int line,
                          int charPositionInLine, String msg,
                          RecognitionException e) {

  }

  // ....
}

The given message msg contains a message and the character, but I would like to have the character only to generated a better message for the users of my code.