[7u6] Review request for 7131021: [macosx] Consider using system properties to pass arguments from the launcher to AWT/SplashScreen

[Anthony Petrov]

Hello,

Please review a fix for http://bugs.sun.com/view_bug.do?bug_id=7131021 at:

http://cr.openjdk.java.net/~anthony/7u6-2-keepEnvVars-7131021.0/

The comments added to java_md_macosx.c have been approved by CCC 
already. This is mainly a review for the newly added test that checks 
for the environment variables that can be set by the launcher on the Mac.

A short background to avoid any confusion regarding the synopsis of the 
bug. We've discussed the issue thoroughly and come to a conclusion that 
we want to preserve the existing behavior, i.e. use the environment 
variables to pass some information from the launcher to AWT. With this 
fix we add comments to the source code to make sure maintainers of the 
code are aware of compatibility issues related to the variables, should 
they need to modify this code. Also, we're adding an automatic 
regression test that verifies that the launcher correctly sets these 
variables.

--
best regards,
Anthony