modules/javafx.graphics/src/main/java/com/sun/glass/ui/Application.java

*** 534,546 ****
          checkEventThread();
  
          if (nestedEventLoopCounter == 0) {
              throw new IllegalStateException("Not in a nested event loop");
          }
! 
          GetApplication()._leaveNestedEventLoop(retValue);
      }
  
      public static boolean isNestedLoopRunning() {
          checkEventThread();
          return nestedEventLoopCounter > 0;
      }
--- 534,547 ----
          checkEventThread();
  
          if (nestedEventLoopCounter == 0) {
              throw new IllegalStateException("Not in a nested event loop");
          }
!         if(GetApplication()!=null) {
              GetApplication()._leaveNestedEventLoop(retValue);
          }
+     }
  
      public static boolean isNestedLoopRunning() {
          checkEventThread();
          return nestedEventLoopCounter > 0;
      }