Hello AWT team, please review the fix http://cr.openjdk.java.net/~azvegint/jdk/9/8048289/00/ for the issue https://bugs.openjdk.java.net/browse/JDK-8048289
UIManager.getSystemLookAndFeelClassName() calls UNIXToolkit.isNativeGTKAvailable() which loads gtk library, checks version, and closes library. Thread specific data key is created upon gtk dlopen, but this key is not deleted at dlclose. This produces a crash at thread termination.
So this fix is a workaround for the glib issue [1], it simply doesn't close library.
Simple case to reproduce this issue written on C is attached to [1]. [1] https://bugzilla.gnome.org/show_bug.cgi?id=733065 -- Thanks, Alexander.
