--- a/src/java.desktop/windows/native/libawt/windows/awt_Frame.cpp	Fri Nov 09 12:08:05 2018 +0530
+++ b/src/java.desktop/windows/native/libawt/windows/awt_Frame.cpp	Fri Nov 09 18:35:25 2018 +0530
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1996, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -699,10 +699,13 @@
     // maximized state bit (matches Motif behaviour)
     // (calling ShowWindow(SW_RESTORE) would fire an
     //  activation event which we don't want)
-        LONG    style = GetStyle();
-        DASSERT(style & WS_MAXIMIZE);
-        style ^= WS_MAXIMIZE;
-        SetStyle(style);
+        HWND hWnd = GetHWnd();
+        if (hWnd != NULL && ::IsWindowVisible(hWnd)) {
+            LONG style = GetStyle();
+            DASSERT(style & WS_MAXIMIZE);
+            style ^= WS_MAXIMIZE;
+            SetStyle(style);
+        }
     }
 
     AwtWindow::Reshape(x, y, width, height);

--- a/test/jdk/java/awt/Mixing/Validating.java	Fri Nov 09 12:08:05 2018 +0530
+++ b/test/jdk/java/awt/Mixing/Validating.java	Fri Nov 09 18:35:25 2018 +0530
@@ -24,7 +24,7 @@
 /*
   @test
   @key headful
-  @bug 6682046
+  @bug 6682046 8198002
   @summary Mixing code does not always recalculate shapes correctly when resizing components
   @author anthony.petrov@...: area=awt.mixing
   @library ../regtesthelpers
@@ -38,8 +38,12 @@
  * summary:  Mixing code does not always recalculate shapes correctly when resizing components
  */
 
-import java.awt.*;
-import java.awt.event.*;
+import java.awt.Button;
+import java.awt.event.InputEvent;
+import java.awt.Frame;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.Toolkit;
 import test.java.awt.regtesthelpers.Util;
 
 public class Validating