Code Review 7030649: URL.equals() fails to compare jar urls

[Chris Hegarty]

Alan, Michael,

This is an old issue. JAR URLs may not compare equal when their 
enclosing URL's are. The reason is that URLStreamHandle.equals(URL,URL) 
and sameFile(URL,URL) doesn't know about the composite URL syntax used 
by JAR URLs. To resolve this we should overridden samefile in 
sun.net.www.protocol.jar.Handler. Ditto for hashCode.

http://cr.openjdk.java.net/~chegar/7030649/webrev.00/webrev/

-Chris.