protected void reportInputMismatch(Parser recognizer,
									   InputMismatchException e)
	{
		String msg = "mismatched input "+getTokenErrorDisplay(e.getOffendingToken())+
		" expecting "+e.getExpectedTokens().toString(recognizer.getVocabulary());
		recognizer.notifyErrorListeners(e.getOffendingToken(), msg, e);
	}
This is called by {@link #reportError} when the exception is an
{@link InputMismatchException}.

@see #reportError

@param recognizer the parser instance
@param e the recognition exception
runtime/Java/src/org/antlr/v4/runtime/DefaultErrorStrategy.java