hg: jdk/jdk: 8197849: Misc improvements to jar resource handling

[claes.redestad at oracle.com]

Changeset: 3f19b5965355
Author:    redestad
Date:      2018-02-14 19:03 +0100
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/3f19b5965355

8197849: Misc improvements to jar resource handling
Reviewed-by: rriggs, dfuchs

! src/java.base/share/classes/sun/net/www/ParseUtil.java
! src/java.base/share/classes/sun/net/www/protocol/jar/Handler.java
+ test/jdk/sun/net/www/protocol/jar/CanonicalizationTest.java