RFR (S): 8078520: [TESTBUG] fix 'test/tools/launcher/ExecutionEnvironment.java' to run on arbitrary *nix systems

[Volker Simonis]

Hi,

could somebody please review the following little change which
improves 'test/tools/launcher/ExecutionEnvironment.java':

https://bugs.openjdk.java.net/browse/JDK-8078520
http://cr.openjdk.java.net/~simonis/webrevs/2015/8078520/

The test 'test/tools/launcher/ExecutionEnvironment.java' needs a
special handling on Solaris. But instead of doing:

if (TestHelper.isSolaris) { ... } else { ... }

it currently goes the other way round:

if (TestHelper.isLinux || TestHelper.isMacOSX || TestHelper.isAIX) {
... } else { /* Solaris */ ... }

I've fixed the test to explicitly check for Solaris. This will make it
possible to also run the test on other operating systems without the
need to explicitly name them.

Thank you and best regards,
Volker