[8u] RFR 8069211: (zipfs) ZipFileSystem creates corrupted zip if entry output stream gets closed more than once

[Zhengyu Gu]

Hi,

I would like to backport this patch to 8u for parity with Oracle 8u281.

The original patch does not apply cleanly.

1) ZipFileSystem.java
Patch contains bad copyright year.

+ * Copyright (c) 2009, 201, Oracle and/or its affiliates. All rights 
reserved.

2) ZipFSTester.java
- 8u uses wildcard imports
- 8u does not have bug id section
- Placement of test8069211() method call

The original bug: https://bugs.openjdk.java.net/browse/JDK-8069211
The original patch: 
http://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/b6ae6184b241


8u webrev: http://cr.openjdk.java.net/~zgu/JDK-8069211-8u/webrev.00/

Thanks,

-Zhengyu