Request for approval: 8040076. Memory leak: java.awt.List objects allowing multiple selections are not GC-ed

[artem malinko]

Hello!

This is a request to backport a jdk9 fix into jdk6.

Description:
Because of native peer List instances couldn't be garbage collected.
https://bugs.openjdk.java.net/browse/JDK-8040076

Fix included in jdk9:
http://hg.openjdk.java.net/jdk9/client/jdk/rev/13b3e10c7041

in jdk8:
http://hg.openjdk.java.net/jdk8u/jdk8u-dev/jdk/rev/3bfd63564978

and in jdk7:
http://hg.openjdk.java.net/jdk7u/jdk7u-dev/jdk/rev/66a3e7b2bb11

Review thread:
http://mail.openjdk.java.net/pipermail/awt-dev/2014-July/008128.html

The patch for jdk6 is identical to one in jdk9, jdk8 and jdk7.