[8u] RFR: 8229888: (zipfs) Updating an existing zip file does not preserve original permissions

[Alex Kashchenko]

Hi,

Please review the backport of JDK-8229888 to 8u:

Bug: https://bugs.openjdk.java.net/browse/JDK-8229888

Original review thread: 
http://mail.openjdk.java.net/pipermail/nio-dev/2019-December/006894.html

11u changeset: 
https://hg.openjdk.java.net/jdk-updates/jdk11u/rev/57fd597352b8

8u webrev: http://cr.openjdk.java.net/~akasko/jdk8u/8229888/webrev.00/

8u patch is very close to 11u one: ZipFileSystem part is the same, test 
is changed to replace API not available in 8u, changes to policy file 
are not included.

-- 
-Alex