Hello, AWT Team. Please review the fix for the issue: https://bugs.openjdk.java.net/browse/JDK-8035169 The fix is available at: http://cr.openjdk.java.net/~pchelko/9/8035169/webrev/
The ThreadGroupUtils class was added to sun.misc, but it's a bad practice for modularization. We should move it somewhere to AWT. Here I've put it to sun.awt.util. Nothing.s changed except moving the class. With best regards. Petr.
