AWTMisc.static: Allow static creation of 'null' AWT cursor to fail (i.e. AWT headless)

2 files changed, 18 insertions, 4 deletions

diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
index 20ab7a2ee..bb7b44795 100644
--- a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
@@ -432,7 +432,10 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
   public final boolean hideCursor() {
       AWTEDTExecutor.singleton.invoke(false, new Runnable() {
           public void run() {
-              component.setCursor(AWTMisc.getNullCursor());
+              final Cursor cursor = AWTMisc.getNullCursor();
+              if( null != cursor ) {
+                  component.setCursor(cursor);
+              }
           } } );
       return true;
   }
diff --git a/src/nativewindow/classes/jogamp/nativewindow/awt/AWTMisc.java b/src/nativewindow/classes/jogamp/nativewindow/awt/AWTMisc.java
index 069cffeb8..3099f293d 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/awt/AWTMisc.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/awt/AWTMisc.java
@@ -50,6 +50,8 @@ import javax.media.nativewindow.util.PixelFormat;
 import javax.media.nativewindow.util.PixelFormatUtil;
 import javax.swing.MenuSelectionManager;
 
+import jogamp.nativewindow.jawt.JAWTUtil;
+
 public class AWTMisc {
 
     public static JFrame getJFrame(Component c) {
@@ -174,9 +176,18 @@ public class AWTMisc {
     static final HashMap<Integer, Cursor> cursorMap = new HashMap<Integer, Cursor>();
     static final Cursor nulCursor;
     static {
-        final Toolkit toolkit = Toolkit.getDefaultToolkit();
-        final BufferedImage img = new BufferedImage(1, 1, BufferedImage.TYPE_4BYTE_ABGR);
-        nulCursor = toolkit.createCustomCursor(img, new Point(0,0), "nullCursor");
+        Cursor _nulCursor = null;
+        try {
+            final Toolkit toolkit = Toolkit.getDefaultToolkit();
+            final BufferedImage img = new BufferedImage(1, 1, BufferedImage.TYPE_4BYTE_ABGR);
+            _nulCursor = toolkit.createCustomCursor(img, new Point(0,0), "nullCursor");
+        } catch (Exception he) {
+            if( JAWTUtil.DEBUG ) {
+                System.err.println("Catched exception: "+he.getMessage());
+                he.printStackTrace();
+            }
+        }
+        nulCursor = _nulCursor;
     }
 
     public static synchronized Cursor getNullCursor() { return nulCursor; }