RFR 8239568: https://bugs.openjdk.java.net/browse/JDK-8239568

[Harold Seigel]

Hi,

Please review this change to fix test LoadLibraryTest.java.  The fix 
changes the test to use inner classes.  Also, it only checks for the 
"Unloaded library ..." logging message if the class that loaded the 
shared library actually got unloaded.  And, the -Xmn8m flag to increase 
the chance that the class got unloaded.

Open Webrev: 
http://cr.openjdk.java.net/~hseigel/bug_8239568/webrev/index.html

JBS Bug: http://cr.openjdk.java.net/~hseigel/bug_8239568/webrev/index.html

The modified test was tested on Linux-x64, Windows, and Mac OS X.

Thanks, Harold