8376433: Remove AppContext from Swing Windows L&F implementation

Reviewed-by: serb, aivanov

Author: prrace

src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/AnimationController.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2006, 2026, 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
@@ -39,8 +39,6 @@
 import com.sun.java.swing.plaf.windows.TMSchema.Prop;
 import com.sun.java.swing.plaf.windows.XPStyle.Skin;
 
-import sun.awt.AppContext;
-
 /**
  * A class to help mimic Vista theme animations.  The only kind of
  * animation it handles for now is 'transition' animation (this seems
@@ -68,8 +66,7 @@ final class AnimationController implements ActionListener, PropertyChangeListene
                         Boolean.getBoolean("swing.disablevistaanimation");
 
 
-    private static final Object ANIMATION_CONTROLLER_KEY =
-        new StringBuilder("ANIMATION_CONTROLLER_KEY");
+    private static AnimationController animationController;
 
     private final Map<JComponent, Map<Part, AnimationState>> animationStateMap =
             new WeakHashMap<JComponent, Map<Part, AnimationState>>();
@@ -80,13 +77,10 @@ final class AnimationController implements ActionListener, PropertyChangeListene
         new javax.swing.Timer(1000/30, this);
 
     private static synchronized AnimationController getAnimationController() {
-        AppContext appContext = AppContext.getAppContext();
-        Object obj = appContext.get(ANIMATION_CONTROLLER_KEY);
-        if (obj == null) {
-            obj = new AnimationController();
-            appContext.put(ANIMATION_CONTROLLER_KEY, obj);
+        if (animationController == null) {
+            animationController = new AnimationController();
         }
-        return (AnimationController) obj;
+        return animationController;
     }
 
     private AnimationController() {
@@ -316,8 +310,7 @@ private synchronized void dispose() {
         timer.stop();
         UIManager.removePropertyChangeListener(this);
         synchronized (AnimationController.class) {
-            AppContext.getAppContext()
-                .put(ANIMATION_CONTROLLER_KEY, null);
+            animationController = null;
         }
     }
 

src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsButtonUI.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2026, 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
@@ -47,8 +47,6 @@
 import javax.swing.plaf.basic.BasicButtonUI;
 import javax.swing.plaf.basic.BasicGraphicsUtils;
 
-import sun.awt.AppContext;
-
 import static com.sun.java.swing.plaf.windows.TMSchema.Part;
 import static com.sun.java.swing.plaf.windows.TMSchema.State;
 import static com.sun.java.swing.plaf.windows.XPStyle.Skin;
@@ -69,20 +67,13 @@ public final class WindowsButtonUI extends BasicButtonUI
 
     private boolean defaults_initialized = false;
 
-    private static final Object WINDOWS_BUTTON_UI_KEY = new Object();
+    private static final ComponentUI UI = new WindowsButtonUI();
 
     // ********************************
     //          Create PLAF
     // ********************************
     public static ComponentUI createUI(JComponent c) {
-        AppContext appContext = AppContext.getAppContext();
-        WindowsButtonUI windowsButtonUI =
-                (WindowsButtonUI) appContext.get(WINDOWS_BUTTON_UI_KEY);
-        if (windowsButtonUI == null) {
-            windowsButtonUI = new WindowsButtonUI();
-            appContext.put(WINDOWS_BUTTON_UI_KEY, windowsButtonUI);
-        }
-        return windowsButtonUI;
+        return UI;
     }
 
 

src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsCheckBoxUI.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2026, 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
@@ -30,8 +30,6 @@
 import javax.swing.UIManager;
 import javax.swing.plaf.ComponentUI;
 
-import sun.awt.AppContext;
-
 /**
  * Windows check box.
  *
@@ -43,7 +41,7 @@ public final class WindowsCheckBoxUI extends WindowsRadioButtonUI
     // of BasicCheckBoxUI because we want to pick up all the
     // painting changes made in WindowsRadioButtonUI.
 
-    private static final Object WINDOWS_CHECK_BOX_UI_KEY = new Object();
+    private static final ComponentUI UI = new WindowsCheckBoxUI();
 
     private static final String propertyPrefix = "CheckBox" + ".";
 
@@ -53,14 +51,7 @@ public final class WindowsCheckBoxUI extends WindowsRadioButtonUI
     //          Create PLAF
     // ********************************
     public static ComponentUI createUI(JComponent c) {
-        AppContext appContext = AppContext.getAppContext();
-        WindowsCheckBoxUI windowsCheckBoxUI =
-                (WindowsCheckBoxUI) appContext.get(WINDOWS_CHECK_BOX_UI_KEY);
-        if (windowsCheckBoxUI == null) {
-            windowsCheckBoxUI = new WindowsCheckBoxUI();
-            appContext.put(WINDOWS_CHECK_BOX_UI_KEY, windowsCheckBoxUI);
-        }
-        return windowsCheckBoxUI;
+        return UI;
     }
 
 

src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsLabelUI.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2026, 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
@@ -34,7 +34,6 @@
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.basic.BasicLabelUI;
 
-import sun.awt.AppContext;
 import sun.swing.MnemonicHandler;
 import sun.swing.SwingUtilities2;
 
@@ -43,20 +42,13 @@
  */
 public final class WindowsLabelUI extends BasicLabelUI {
 
-    private static final Object WINDOWS_LABEL_UI_KEY = new Object();
+    private static final ComponentUI UI = new WindowsLabelUI();
 
     // ********************************
     //          Create PLAF
     // ********************************
     public static ComponentUI createUI(JComponent c) {
-        AppContext appContext = AppContext.getAppContext();
-        WindowsLabelUI windowsLabelUI =
-                (WindowsLabelUI) appContext.get(WINDOWS_LABEL_UI_KEY);
-        if (windowsLabelUI == null) {
-            windowsLabelUI = new WindowsLabelUI();
-            appContext.put(WINDOWS_LABEL_UI_KEY, windowsLabelUI);
-        }
-        return windowsLabelUI;
+        return UI;
     }
 
     @Override

src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsRadioButtonUI.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2026, 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
@@ -38,14 +38,12 @@
 import javax.swing.plaf.basic.BasicGraphicsUtils;
 import javax.swing.plaf.basic.BasicRadioButtonUI;
 
-import sun.awt.AppContext;
-
 /**
  * Windows rendition of the component.
  */
 public class WindowsRadioButtonUI extends BasicRadioButtonUI
 {
-    private static final Object WINDOWS_RADIO_BUTTON_UI_KEY = new Object();
+    private static final ComponentUI UI = new WindowsRadioButtonUI();
 
     protected int dashedRectGapX;
     protected int dashedRectGapY;
@@ -60,14 +58,7 @@ public class WindowsRadioButtonUI extends BasicRadioButtonUI
     //          Create PLAF
     // ********************************
     public static ComponentUI createUI(JComponent c) {
-        AppContext appContext = AppContext.getAppContext();
-        WindowsRadioButtonUI windowsRadioButtonUI =
-                (WindowsRadioButtonUI) appContext.get(WINDOWS_RADIO_BUTTON_UI_KEY);
-        if (windowsRadioButtonUI == null) {
-            windowsRadioButtonUI = new WindowsRadioButtonUI();
-            appContext.put(WINDOWS_RADIO_BUTTON_UI_KEY, windowsRadioButtonUI);
-        }
-        return windowsRadioButtonUI;
+        return UI;
     }
 
     // ********************************

src/java.desktop/windows/classes/com/sun/java/swing/plaf/windows/WindowsToggleButtonUI.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2026, 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
@@ -38,8 +38,6 @@
 import javax.swing.plaf.basic.BasicGraphicsUtils;
 import javax.swing.plaf.basic.BasicToggleButtonUI;
 
-import sun.awt.AppContext;
-
 /**
  * A Windows toggle button.
  *
@@ -54,19 +52,12 @@ public final class WindowsToggleButtonUI extends BasicToggleButtonUI
 
     protected Color focusColor;
 
-    private static final Object WINDOWS_TOGGLE_BUTTON_UI_KEY = new Object();
+    private static final ComponentUI UI = new WindowsToggleButtonUI();
 
     private boolean defaults_initialized = false;
 
     public static ComponentUI createUI(JComponent b) {
-        AppContext appContext = AppContext.getAppContext();
-        WindowsToggleButtonUI windowsToggleButtonUI =
-                (WindowsToggleButtonUI) appContext.get(WINDOWS_TOGGLE_BUTTON_UI_KEY);
-        if (windowsToggleButtonUI == null) {
-            windowsToggleButtonUI = new WindowsToggleButtonUI();
-            appContext.put(WINDOWS_TOGGLE_BUTTON_UI_KEY, windowsToggleButtonUI);
-        }
-        return windowsToggleButtonUI;
+        return UI;
     }