--- old/modules/javafx.graphics/src/main/java/com/sun/glass/ui/Application.java	2017-08-04 11:33:53.000000000 +0530
+++ new/modules/javafx.graphics/src/main/java/com/sun/glass/ui/Application.java	2017-08-04 11:33:53.000000000 +0530
@@ -536,8 +536,9 @@
         if (nestedEventLoopCounter == 0) {
             throw new IllegalStateException("Not in a nested event loop");
         }
-
-        GetApplication()._leaveNestedEventLoop(retValue);
+        if(GetApplication()!=null) {
+            GetApplication()._leaveNestedEventLoop(retValue);
+        }
     }
 
     public static boolean isNestedLoopRunning() {