Fixed

com.jogamp.opengl.test.junit.newt.TestWindowClosingProtocol02NEWT.testCloseGLWindow

Took 1.6 sec.

Standard Error

++++ Test Singleton.ctor()
++++ Test Singleton.lock()
SLOCK [T SingletonServerSocket1-localhost/127.0.0.1:59999 @ 1554865059642 ms III - Start
SLOCK [T Thread-2-UserApp-JUnitTestRunner @ 1554865059644 ms +++ localhost/127.0.0.1:59999 - Locked within 10 ms, 1 attempts
++++ TestCase.setUp: com.jogamp.opengl.test.junit.newt.TestWindowClosingProtocol02NEWT - testCloseGLWindow
Thread[Thread-2-UserApp-JUnitTestRunner-Display-.x11_:0.0-1-EDT-1,5,main] GearsES2.init.0 0x220406c5: tileRendererInUse null,
...[truncated 2551 chars]...
ispose 0x220406c5 FIN
NEWTWindowClosingAdapter.windowDestroyed: NEWTWindowClosingAdapter[closing 1, closed 1]
++++ TestCase.tearDown: com.jogamp.opengl.test.junit.newt.TestWindowClosingProtocol02NEWT - testCloseGLWindow
++++ Test Singleton.unlock()
SLOCK [T SingletonServerSocket1-localhost/127.0.0.1:59999 @ 1554865061392 ms III - Stopping: alive true, shallQuit true, hasSocket true
SLOCK [T Thread-2-UserApp-JUnitTestRunner @ 1554865061393 ms --- localhost/127.0.0.1:59999 - Unlock ok within 2 ms