Major Description
java.net.URLStreamHandler throws a SecurityException in some situations where the RI will throw a StringIndexOutOfBoundsException. From experimenting with test cases I think the RI is checking bounds as it parses the URL and not up front, which causes some inconsistent behaviour. There's already one work-around added to this method in order to make it more compatible (HARMONY-2941)
The following all throw SecurityExceptions on Harmony (when called with a handler that is not the URL's protocol handler) where they throw StringIndexOutOfBoundsExceptions on the RI:
handler.parse(url, "any", 10, Integer.MIN_VALUE);
handler.parse(url, "any", 10, Integer.MIN_VALUE+1);
handler.parse(url, "any", Integer.MIN_VALUE, Integer.MIN_VALUE);
handler.parse(url, "any", Integer.MIN_VALUE, 2);