Parser command-line tool exception on input line of solely whitespace.

In the Parser command-line tool, if an input line is comprised of solely whitespace, then you get an array index exception in parseLine

String text = sb.substring(0, sb.length() - 1);

because the whitespace doesn't produce any tokens thus sb.length() is 0, and you wind up with an end position of -1.

Simple solution is to .trim() the input string in ParserTool.