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-rw-r--r--src/jogl/classes/javax/media/opengl/awt/GLCanvas.java39
1 files changed, 21 insertions, 18 deletions
diff --git a/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java b/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
index 705b12783..4e63a8048 100644
--- a/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
+++ b/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
@@ -316,26 +316,29 @@ public class GLCanvas extends Canvas implements AWTGLAutoDrawable {
Exception ex1 = new Exception("dispose("+regenerate+") - start");
ex1.printStackTrace();
}
- disposeRegenerate=regenerate;
- if (Threading.isSingleThreaded() &&
- !Threading.isOpenGLThread()) {
- // Workaround for termination issues with applets --
- // sun.applet.AppletPanel should probably be performing the
- // remove() call on the EDT rather than on its own thread
- if (ThreadingImpl.isAWTMode() &&
- Thread.holdsLock(getTreeLock())) {
- // The user really should not be invoking remove() from this
- // thread -- but since he/she is, we can not go over to the
- // EDT at this point. Try to destroy the context from here.
- if(context.isCreated()) {
- drawableHelper.invokeGL(drawable, context, disposeAction, null);
+ if(null!=context) {
+ disposeRegenerate=regenerate;
+
+ if (Threading.isSingleThreaded() &&
+ !Threading.isOpenGLThread()) {
+ // Workaround for termination issues with applets --
+ // sun.applet.AppletPanel should probably be performing the
+ // remove() call on the EDT rather than on its own thread
+ if (ThreadingImpl.isAWTMode() &&
+ Thread.holdsLock(getTreeLock())) {
+ // The user really should not be invoking remove() from this
+ // thread -- but since he/she is, we can not go over to the
+ // EDT at this point. Try to destroy the context from here.
+ if(context.isCreated()) {
+ drawableHelper.invokeGL(drawable, context, disposeAction, null);
+ }
+ } else if(context.isCreated()) {
+ Threading.invokeOnOpenGLThread(disposeOnEventDispatchThreadAction);
+ }
+ } else if(context.isCreated()) {
+ drawableHelper.invokeGL(drawable, context, disposeAction, null);
}
- } else if(context.isCreated()) {
- Threading.invokeOnOpenGLThread(disposeOnEventDispatchThreadAction);
- }
- } else if(context.isCreated()) {
- drawableHelper.invokeGL(drawable, context, disposeAction, null);
}
if(DEBUG) {