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diff --git a/src/junit/com/jogamp/test/junit/newt/TestDisplayLifecycle02NEWT.java b/src/junit/com/jogamp/test/junit/newt/TestDisplayLifecycle02NEWT.java
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+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ * 
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ * 
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.test.junit.newt;
+
+import java.lang.reflect.*;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Test;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+
+import com.jogamp.newt.*;
+import com.jogamp.newt.event.*;
+import com.jogamp.newt.opengl.*;
+import java.io.IOException;
+
+import com.jogamp.test.junit.util.UITestCase;
+import com.jogamp.test.junit.util.MiscUtils;
+import com.jogamp.test.junit.jogl.demos.gl2.gears.Gears;
+
+public class TestDisplayLifecycle02NEWT extends UITestCase {
+    static GLProfile glp;
+    static GLCapabilities caps;
+    static int width, height;
+    static long durationPerTest = 100; // ms
+
+    @BeforeClass
+    public static void initClass() {
+        GLProfile.initSingleton(true);
+        width  = 640;
+        height = 480;
+        glp = GLProfile.getDefault();
+        caps = new GLCapabilities(glp);
+    }
+
+    static GLWindow createWindow(GLCapabilities caps, int width, int height)
+        throws InterruptedException
+    {
+        Assert.assertNotNull(caps);
+
+        //
+        // Create native windowing resources .. X11/Win/OSX
+        // 
+        GLWindow glWindow = GLWindow.create(caps);
+
+        GLEventListener demo = new Gears();
+        setDemoFields(demo, glWindow);
+        glWindow.addGLEventListener(demo);
+        glWindow.addWindowListener(new TraceWindowAdapter());
+        glWindow.setSize(width, height);
+        return glWindow;
+    }
+
+    private void testDisplayCreate01Impl() throws InterruptedException {
+        // start-state == end-state
+        Assert.assertEquals(0,Display.getActiveDisplayNumber());
+
+        // Create Window, pending lazy native creation
+        GLWindow window = createWindow(caps, width, height);
+        Screen screen = window.getScreen();
+        Display display = screen.getDisplay();
+
+        Assert.assertEquals(true,display.getDestroyWhenUnused());
+        Assert.assertEquals(true,screen.getDestroyWhenUnused());
+
+        Assert.assertEquals(screen,window.getScreen());
+        Assert.assertEquals(0,Display.getActiveDisplayNumber());
+        Assert.assertEquals(0,display.getReferenceCount());
+        Assert.assertEquals(false,display.isNativeValid());
+        Assert.assertEquals(true,display.getEDTUtil().isRunning());
+        Assert.assertEquals(0,Screen.getActiveScreenNumber());
+        Assert.assertEquals(0,screen.getReferenceCount());
+        Assert.assertEquals(false,screen.isNativeValid());
+        Assert.assertEquals(false,window.isNativeValid());
+        Assert.assertEquals(false,window.isVisible());
+
+        // lazy native creation sequence: Display, Screen and Window
+        Assert.assertEquals(0, window.getTotalFrames());
+        window.setVisible(true);
+        int wait=0;
+        while(wait<10 && window.getTotalFrames()<1) { Thread.sleep(100); wait++; }
+        System.err.println("Frames for setVisible(true) 1: "+window.getTotalFrames());
+        Assert.assertTrue(0 < window.getTotalFrames());
+
+        Assert.assertEquals(screen,window.getScreen());
+        Assert.assertEquals(1,Display.getActiveDisplayNumber());
+        Assert.assertEquals(1,display.getReferenceCount());
+        Assert.assertEquals(true,display.isNativeValid());
+        Assert.assertEquals(true,display.getEDTUtil().isRunning());
+        Assert.assertEquals(1,Screen.getActiveScreenNumber());
+        Assert.assertEquals(1,screen.getReferenceCount());
+        Assert.assertEquals(true,screen.isNativeValid());
+        Assert.assertEquals(true,window.isNativeValid());
+        Assert.assertEquals(true,window.isVisible());
+
+        while(window.getDuration()<1*durationPerTest) {
+            window.display();
+            Thread.sleep(100);
+        }
+        System.err.println("duration: "+window.getDuration());
+
+        // just make the Window invisible
+        window.setVisible(false);
+        Assert.assertEquals(true,window.isNativeValid());
+        Assert.assertEquals(false,window.isVisible());
+
+        // just make the Window visible again
+        window.resetCounter();
+        Assert.assertEquals(0, window.getTotalFrames());
+        window.setVisible(true);
+        wait=0;
+        while(wait<10 && window.getTotalFrames()<1) { Thread.sleep(100); wait++; }
+        System.err.println("Frames for setVisible(true) 1: "+window.getTotalFrames());
+        Assert.assertEquals(true,window.isNativeValid());
+        Assert.assertEquals(true,window.isVisible());
+        Assert.assertTrue(0 < window.getTotalFrames());
+
+        while(window.getDuration()<2*durationPerTest) {
+            window.display();
+            Thread.sleep(100);
+        }
+        System.err.println("duration: "+window.getDuration());
+
+        // recoverable destruction, ie Display/Screen untouched
+        window.destroy(false);
+        Assert.assertEquals(screen,window.getScreen());
+        Assert.assertEquals(1,Display.getActiveDisplayNumber());
+        Assert.assertEquals(1,display.getReferenceCount());
+        Assert.assertEquals(true,display.isNativeValid());
+        Assert.assertNotNull(display.getEDTUtil());
+        Assert.assertEquals(true,display.getEDTUtil().isRunning());
+        Assert.assertEquals(1,Screen.getActiveScreenNumber());
+        Assert.assertEquals(1,screen.getReferenceCount());
+        Assert.assertEquals(true,screen.isNativeValid());
+        Assert.assertEquals(false,window.isNativeValid());
+        Assert.assertEquals(false,window.isVisible());
+        window.resetCounter();
+        Assert.assertEquals(0, window.getTotalFrames());
+
+        // a display call shall not change a thing
+        window.display();
+        Assert.assertEquals(0, window.getTotalFrames());
+        Assert.assertEquals(false,window.isNativeValid());
+        Assert.assertEquals(false,window.isVisible());
+
+        // recover Window
+        window.setVisible(true);
+        wait=0;
+        while(wait<10 && window.getTotalFrames()<1) { Thread.sleep(100); wait++; }
+        System.err.println("Frames for setVisible(true) 2: "+window.getTotalFrames());
+        Assert.assertTrue(0 < window.getTotalFrames());
+
+        Assert.assertEquals(screen,window.getScreen());
+        Assert.assertEquals(1,Display.getActiveDisplayNumber());
+        Assert.assertEquals(1,display.getReferenceCount());
+        Assert.assertEquals(true,display.isNativeValid());
+        Assert.assertEquals(true,display.getEDTUtil().isRunning());
+        Assert.assertEquals(1,Screen.getActiveScreenNumber());
+        Assert.assertEquals(1,screen.getReferenceCount());
+        Assert.assertEquals(true,screen.isNativeValid());
+        Assert.assertEquals(true,window.isNativeValid());
+        Assert.assertEquals(true,window.isVisible());
+
+        while(window.getDuration()<1*durationPerTest) {
+            window.display();
+            Thread.sleep(100);
+        }
+        System.err.println("duration: "+window.getDuration());
+
+        // unrecoverable destruction, ie Display/Screen will be unreferenced
+        window.destroy(true);
+        Assert.assertEquals(null,window.getScreen());
+        Assert.assertEquals(false,window.isNativeValid());
+        Assert.assertEquals(false,window.isVisible());
+
+        display.dumpDisplayList("Post destroy(true)");
+
+        // end-state == start-state
+        Assert.assertEquals(0,Display.getActiveDisplayNumber());
+        Assert.assertEquals(0,display.getReferenceCount());
+        Assert.assertEquals(false,display.isNativeValid());
+        Assert.assertNotNull(display.getEDTUtil());
+        Assert.assertEquals(false,display.getEDTUtil().isRunning());
+        Assert.assertEquals(0,Screen.getActiveScreenNumber());
+        Assert.assertEquals(0,screen.getReferenceCount());
+        Assert.assertEquals(false,screen.isNativeValid());
+    }
+
+    @Test
+    public void testDisplayCreate01() throws InterruptedException {
+        Assert.assertEquals(0,Display.getActiveDisplayNumber());
+
+        // Create Display/Screen, pending lazy native creation
+        testDisplayCreate01Impl();
+        testDisplayCreate01Impl();
+
+        Assert.assertEquals(0,Display.getActiveDisplayNumber());
+    }
+
+    private void testDisplayCreate02Impl() throws InterruptedException {
+        // start-state == end-state
+        Assert.assertEquals(0,Display.getActiveDisplayNumber());
+
+        // Create Window, pending lazy native creation
+        GLWindow window1 = createWindow(caps, width, height);
+        window1.setPosition(0, 0);
+        Screen screen = window1.getScreen();
+        Display display = screen.getDisplay();
+
+        GLWindow window2 = createWindow(caps, width, height);
+        Assert.assertSame(screen, window2.getScreen());
+        Assert.assertSame(display, window2.getScreen().getDisplay());
+        window2.setPosition(screen.getWidth()-width, 0);
+
+        Assert.assertEquals(true,display.getDestroyWhenUnused());
+        Assert.assertEquals(true,screen.getDestroyWhenUnused());
+
+        Assert.assertEquals(0,Display.getActiveDisplayNumber());
+        Assert.assertEquals(0,display.getReferenceCount());
+        Assert.assertEquals(false,display.isNativeValid());
+        Assert.assertEquals(true,display.getEDTUtil().isRunning());
+        Assert.assertEquals(0,Screen.getActiveScreenNumber());
+        Assert.assertEquals(0,screen.getReferenceCount());
+        Assert.assertEquals(false,screen.isNativeValid());
+        Assert.assertEquals(false,window1.isNativeValid());
+        Assert.assertEquals(false,window1.isVisible());
+        Assert.assertEquals(false,window2.isNativeValid());
+        Assert.assertEquals(false,window2.isVisible());
+
+        // lazy native creation sequence: Display, Screen and Window
+        Assert.assertEquals(0, window1.getTotalFrames());
+        window1.setVisible(true);
+        int wait=0;
+        while(wait<10 && window1.getTotalFrames()<1) { Thread.sleep(100); wait++; }
+        System.err.println("Frames for setVisible(true) 1: "+window1.getTotalFrames());
+        Assert.assertTrue(0 < window1.getTotalFrames());
+
+        Assert.assertEquals(1,Display.getActiveDisplayNumber());
+        Assert.assertEquals(1,display.getReferenceCount());
+        Assert.assertEquals(true,display.isNativeValid());
+        Assert.assertEquals(true,display.getEDTUtil().isRunning());
+        Assert.assertEquals(1,Screen.getActiveScreenNumber());
+        Assert.assertEquals(1,screen.getReferenceCount());
+        Assert.assertEquals(true,screen.isNativeValid());
+        Assert.assertEquals(true,window1.isNativeValid());
+        Assert.assertEquals(true,window1.isVisible());
+
+        Assert.assertEquals(0, window2.getTotalFrames());
+        window2.setVisible(true);
+        wait=0;
+        while(wait<10 && window2.getTotalFrames()<1) { Thread.sleep(100); wait++; }
+        System.err.println("Frames for setVisible(true) 2: "+window2.getTotalFrames());
+        Assert.assertTrue(0 < window2.getTotalFrames());
+
+        Assert.assertEquals(1,Display.getActiveDisplayNumber());
+        Assert.assertEquals(1,display.getReferenceCount());
+        Assert.assertEquals(true,display.isNativeValid());
+        Assert.assertEquals(true,display.getEDTUtil().isRunning());
+        Assert.assertEquals(1,Screen.getActiveScreenNumber());
+        Assert.assertEquals(2,screen.getReferenceCount());
+        Assert.assertEquals(true,screen.isNativeValid());
+        Assert.assertEquals(true,window2.isNativeValid());
+        Assert.assertEquals(true,window2.isVisible());
+
+        while(window1.getDuration()<1*durationPerTest) {
+            window1.display();
+            Thread.sleep(100);
+        }
+        System.err.println("duration: "+window1.getDuration());
+
+        // just make the Window invisible
+        window1.setVisible(false);
+        Assert.assertEquals(true,window1.isNativeValid());
+        Assert.assertEquals(false,window1.isVisible());
+
+        // unrecoverable destruction, ie Display/Screen will be unreferenced
+        window1.destroy(true);
+        Assert.assertEquals(null,window1.getScreen());
+        Assert.assertEquals(false,window1.isNativeValid());
+        Assert.assertEquals(false,window1.isVisible());
+
+        Assert.assertEquals(1,Display.getActiveDisplayNumber());
+        Assert.assertEquals(1,display.getReferenceCount());
+        Assert.assertEquals(true,display.isNativeValid());
+        Assert.assertNotNull(display.getEDTUtil());
+        Assert.assertEquals(true,display.getEDTUtil().isRunning());
+        Assert.assertEquals(1,Screen.getActiveScreenNumber());
+        Assert.assertEquals(1,screen.getReferenceCount());
+        Assert.assertEquals(true,screen.isNativeValid());
+
+        // unrecoverable destruction, ie Display/Screen will be unreferenced
+        window2.destroy(true);
+        Assert.assertEquals(null,window2.getScreen());
+        Assert.assertEquals(false,window2.isNativeValid());
+        Assert.assertEquals(false,window2.isVisible());
+
+        // end-state == start-state
+        Assert.assertEquals(0,Display.getActiveDisplayNumber());
+        Assert.assertEquals(0,display.getReferenceCount());
+        Assert.assertEquals(false,display.isNativeValid());
+        Assert.assertNotNull(display.getEDTUtil());
+        Assert.assertEquals(false,display.getEDTUtil().isRunning());
+        Assert.assertEquals(0,Screen.getActiveScreenNumber());
+        Assert.assertEquals(0,screen.getReferenceCount());
+        Assert.assertEquals(false,screen.isNativeValid());
+
+    }
+
+    @Test
+    public void testDisplayCreate02() throws InterruptedException {
+        Assert.assertEquals(0,Display.getActiveDisplayNumber());
+
+        // Create Display/Screen, pending lazy native creation
+        testDisplayCreate02Impl();
+        testDisplayCreate02Impl();
+
+        Assert.assertEquals(0,Display.getActiveDisplayNumber());
+    }
+
+    public static void setDemoFields(GLEventListener demo, GLWindow glWindow) {
+        Assert.assertNotNull(demo);
+        Assert.assertNotNull(glWindow);
+        if(!MiscUtils.setFieldIfExists(demo, "window", glWindow)) {
+            MiscUtils.setFieldIfExists(demo, "glWindow", glWindow);
+        }
+    }
+
+    static int atoi(String a) {
+        int i=0;
+        try {
+            i = Integer.parseInt(a);
+        } catch (Exception ex) { ex.printStackTrace(); }
+        return i;
+    }
+
+    public static void main(String args[]) throws IOException {
+        for(int i=0; i<args.length; i++) {
+            if(args[i].equals("-time")) {
+                durationPerTest = atoi(args[++i]);
+            }
+        }
+        System.err.println("durationPerTest: "+durationPerTest);
+        String tstname = TestDisplayLifecycle02NEWT.class.getName();
+        org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(new String[] {
+            tstname,
+            "filtertrace=true",
+            "haltOnError=false",
+            "haltOnFailure=false",
+            "showoutput=true",
+            "outputtoformatters=true",
+            "logfailedtests=true",
+            "logtestlistenerevents=true",
+            "formatter=org.apache.tools.ant.taskdefs.optional.junit.PlainJUnitResultFormatter",
+            "formatter=org.apache.tools.ant.taskdefs.optional.junit.XMLJUnitResultFormatter,TEST-"+tstname+".xml" } );
+    }
+
+}