src/macosx/native/sun/awt/CGraphicsDevice.m

@@ -235,30 +235,31 @@
 Java_sun_awt_CGraphicsDevice_nativeSetDisplayMode
 (JNIEnv *env, jclass class, jint displayID, jint w, jint h, jint bpp, jint refrate)
 {
     JNF_COCOA_ENTER(env);
     CFArrayRef allModes = getAllValidDisplayModes(displayID);
-
     CGDisplayModeRef closestMatch = getBestModeForParameters(allModes, (int)w, (int)h, (int)bpp, (int)refrate);
+    
     __block CGError retCode = kCGErrorSuccess;
     if (closestMatch != NULL) {
-        [JNFRunLoop performOnMainThreadWaiting:YES withBlock:^(){
+        CGDisplayModeRetain(closestMatch);
+        [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
             CGDisplayConfigRef config;
             retCode = CGBeginDisplayConfiguration(&config);
             if (retCode == kCGErrorSuccess) {
                 CGConfigureDisplayWithDisplayMode(config, displayID, closestMatch, NULL);
                 retCode = CGCompleteDisplayConfiguration(config, kCGConfigureForAppOnly);
             }
+            CGDisplayModeRelease(closestMatch);
         }];
     } else {
         [JNFException raise:env as:kIllegalArgumentException reason:"Invalid display mode"];
     }
 
     if (retCode != kCGErrorSuccess){
         [JNFException raise:env as:kIllegalArgumentException reason:"Unable to set display mode!"];
     }    
-
     CFRelease(allModes);
     JNF_COCOA_EXIT(env);
 }
 /*
  * Class:     sun_awt_CGraphicsDevice