1 files changed, 5 insertions, 1 deletions
diff --git a/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java b/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
index ca303e6bc..cd558c05d 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
@@ -35,7 +35,11 @@ public class OSXUtil {
     }
     
     public static void RunOnMainThread(boolean waitUntilDone, Runnable runnable) {
-        RunOnMainThread0(waitUntilDone, runnable);
+        if(IsMainThread0()) {
+            runnable.run(); // don't leave the JVM
+        } else {
+            RunOnMainThread0(waitUntilDone, runnable);
+        }
     }
     
     public static boolean IsMainThread() {