2 files changed, 29 insertions, 6 deletions
diff --git a/src/junit/com/jogamp/test/junit/jogl/offscreen/TestOffscreen01NEWT.java b/src/junit/com/jogamp/test/junit/jogl/offscreen/TestOffscreen01NEWT.java
index a8caafb30..5800af9af 100755
--- a/src/junit/com/jogamp/test/junit/jogl/offscreen/TestOffscreen01NEWT.java
+++ b/src/junit/com/jogamp/test/junit/jogl/offscreen/TestOffscreen01NEWT.java
@@ -65,8 +65,26 @@ public class TestOffscreen01NEWT {
     }
 
     @Test
-    public void test1() {
-        if(false) {
+    public void test01OffscreenWindow() {
+        if(true) {
+        GLWindow windowOffscreen = WindowUtilNEWT.createGLWindow(caps, width, height, false, true, false);
+        GLEventListener demo = new RedSquare();
+        GLWindow windowOnScreen = null;
+        WindowListener wl=null;
+        MouseListener ml=null;
+        SurfaceUpdatedListener ul=null;
+
+        WindowUtilNEWT.run(windowOffscreen, null, windowOnScreen, wl, ml, ul, 2, true /*debug*/);
+        try {
+            Thread.sleep(1000); // 1000 ms
+        } catch (Exception e) {}
+        WindowUtilNEWT.shutdown(windowOffscreen, windowOnScreen);
+        }
+    }
+
+    @Test
+    public void test02OffscreenSnapshotWithDemo() {
+        if(true) {
         GLWindow windowOffscreen = WindowUtilNEWT.createGLWindow(caps, width, height, false, true, false);
         GLEventListener demo = new RedSquare();
         GLWindow windowOnScreen = null;
@@ -75,6 +93,9 @@ public class TestOffscreen01NEWT {
         SurfaceUpdatedListener ul=null;
 
         WindowUtilNEWT.run(windowOffscreen, demo, windowOnScreen, wl, ml, ul, 2, true /*debug*/);
+        try {
+            Thread.sleep(1000); // 1000 ms
+        } catch (Exception e) {}
         WindowUtilNEWT.shutdown(windowOffscreen, windowOnScreen);
         }
     }
diff --git a/src/junit/com/jogamp/test/junit/jogl/offscreen/WindowUtilNEWT.java b/src/junit/com/jogamp/test/junit/jogl/offscreen/WindowUtilNEWT.java
index 31ee7b552..b9541dbaf 100755
--- a/src/junit/com/jogamp/test/junit/jogl/offscreen/WindowUtilNEWT.java
+++ b/src/junit/com/jogamp/test/junit/jogl/offscreen/WindowUtilNEWT.java
@@ -79,14 +79,16 @@ public class WindowUtilNEWT {
                            GLWindow windowOnScreen, WindowListener wl, MouseListener ml, 
                            SurfaceUpdatedListener ul, int frames, boolean debug) {
         try {
-            if(debug) {
+            if(debug && null!=demo) {
                 MiscUtils.setField(demo, "glDebug", new Boolean(true));
                 MiscUtils.setField(demo, "glTrace", new Boolean(true));
             }
-            if(!MiscUtils.setField(demo, "window", windowOffscreen)) {
-                MiscUtils.setField(demo, "glWindow", windowOffscreen);
+            if(null!=demo) {
+                if(!MiscUtils.setField(demo, "window", windowOffscreen)) {
+                    MiscUtils.setField(demo, "glWindow", windowOffscreen);
+                }
+                windowOffscreen.addGLEventListener(demo);
             }
-            windowOffscreen.addGLEventListener(demo);
 
             if ( null != windowOnScreen ) {
                 if(null!=wl) {