[8u-dev] Backport request: Regression: 8032788: ImageIcon constructor throws an NPE and hangs when passed a null String parameter

[anton nashatyrev]

Hello,

     please approve the fix backport from jdk9 to jdk8u-dev. The patch 
was applied without any modifications.

Bug: https://bugs.openjdk.java.net/browse/JDK-8032788
Webrev: http://cr.openjdk.java.net/%7Eanashaty/8032788/9/webrev.00/
Jdk9 Changeset: http://hg.openjdk.java.net/jdk9/client/jdk/rev/3112aa051345
Jdk9 Review Thread: 
http://mail.openjdk.java.net/pipermail/awt-dev/2014-May/007851.html

Thanks!
Anton.