public void recover(LexerNoViableAltException e) {
		if (_input.LA(1) != IntStream.EOF) {
			// skip a char and try again
			getInterpreter().consume(_input);
		}
	}
Return a list of all Token objects in input char stream.
 Forces load of all tokens. Does not include EOF token.
runtime/Java/src/org/antlr/v4/runtime/Lexer.java