Fix string exception in near method of ParserUtil

- Java String's 2nd and 3rd actor parameter are offset/length instead of  begin/end

Java 7 SE Doc:

> String(byte[] bytes, int offset, int length)
> Constructs a new String by decoding the specified subarray of bytes using the platform's default charset.

Signed-off-by: Wang Xu <gnawux@gmail.com>