modules/javafx.graphics/src/main/native-glass/mac/GlassWindow.m

*** 648,668 ****
          jWindowClass = (*env)->NewGlobalRef(env, jClass);
      }
  
      if (jMenuBarDelegateClass == NULL)
      {
!         jMenuBarDelegateClass = (*env)->NewGlobalRef(env, [GlassHelper ClassForName:"com.sun.glass.ui.mac.MacMenuBarDelegate" withEnv:env]);
      }
  
      if (jViewClass == NULL)
      {
!         jViewClass = (*env)->NewGlobalRef(env, [GlassHelper ClassForName:"com.sun.glass.ui.View" withEnv:env]);
      }
  
      if (jScreenClass == NULL)
      {
!         jScreenClass = (*env)->NewGlobalRef(env, [GlassHelper ClassForName:"com.sun.glass.ui.Screen" withEnv:env]);
      }
  
      if (jWindowNotifyMove == NULL)
      {
          jWindowNotifyMove = (*env)->GetMethodID(env, jWindowClass, "notifyMove", "(IIZ)V");
--- 648,680 ----
          jWindowClass = (*env)->NewGlobalRef(env, jClass);
      }
  
      if (jMenuBarDelegateClass == NULL)
      {
!         jclass cls = [GlassHelper ClassForName:"com.sun.glass.ui.mac.MacMenuBarDelegate" withEnv:env];
!         if (!cls) {
!             return;
!         }
!         jMenuBarDelegateClass = (*env)->NewGlobalRef(env, cls);
      }
  
      if (jViewClass == NULL)
      {
!         jclass cls = [GlassHelper ClassForName:"com.sun.glass.ui.View" withEnv:env];
!         if (!cls) {
!             return;
!         }
!         jViewClass = (*env)->NewGlobalRef(env, cls);
      }
  
      if (jScreenClass == NULL)
      {
!         jclass cls = [GlassHelper ClassForName:"com.sun.glass.ui.Screen" withEnv:env];
!         if (!cls) {
!             return;
!         }
!         jScreenClass = (*env)->NewGlobalRef(env, cls);
      }
  
      if (jWindowNotifyMove == NULL)
      {
          jWindowNotifyMove = (*env)->GetMethodID(env, jWindowClass, "notifyMove", "(IIZ)V");