8296972: [macos13] java/awt/Frame/MaximizedToIconified/MaximizedToIconified.java: getExtendedState() != 6 as expected.

Reviewed-by: goetz
Backport-of: f0c2f098150335fce736708354d58bae383cc4a1

Author: Andrew Lu

src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java

@@ -42,6 +42,7 @@
 import java.awt.Window;
 import java.awt.event.FocusEvent;
 import java.awt.event.WindowEvent;
+import java.awt.event.WindowStateListener;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.lang.reflect.InvocationTargetException;
@@ -964,6 +965,33 @@ public boolean isFullScreenMode() {
         return isFullScreenMode;
     }
 
+    private void waitForWindowState(int state) {
+        if (peer.getState() == state) {
+            return;
+        }
+
+        Object lock = new Object();
+        WindowStateListener wsl = new WindowStateListener() {
+            public void windowStateChanged(WindowEvent e) {
+                synchronized (lock) {
+                    if (e.getNewState() == state) {
+                        lock.notifyAll();
+                    }
+                }
+            }
+        };
+
+        target.addWindowStateListener(wsl);
+        if (peer.getState() != state) {
+            synchronized (lock) {
+                try {
+                    lock.wait();
+                } catch (InterruptedException ie) {}
+            }
+        }
+        target.removeWindowStateListener(wsl);
+    }
+
     @Override
     public void setWindowState(int windowState) {
         if (peer == null || !peer.isVisible()) {
@@ -985,13 +1013,16 @@ public void setWindowState(int windowState) {
                     // let's return into the normal states first
                     // the zoom call toggles between the normal and the max states
                     unmaximize();
+                    waitForWindowState(Frame.NORMAL);
                 }
                 execute(CWrapper.NSWindow::miniaturize);
                 break;
             case Frame.MAXIMIZED_BOTH:
                 if (prevWindowState == Frame.ICONIFIED) {
                     // let's return into the normal states first
                     execute(CWrapper.NSWindow::deminiaturize);
+                    waitForWindowState(Frame.NORMAL);
+
                 }
                 maximize();
                 break;

test/jdk/java/awt/Frame/MaximizedToIconified/MaximizedToIconified.java

@@ -45,7 +45,7 @@
 
 public class MaximizedToIconified
 {
-    static volatile int lastFrameState = Frame.NORMAL;
+    static volatile int lastFrameState;
     static volatile boolean failed = false;
     static volatile Toolkit myKit;
     private static Robot robot;
@@ -77,6 +77,8 @@ private static void examineStates(int states[]) {
         frame.setSize(200, 200);
         frame.setVisible(true);
 
+        lastFrameState = Frame.NORMAL;
+
         robot.waitForIdle();
 
         frame.addWindowStateListener(new WindowStateListener() {
@@ -114,7 +116,12 @@ private static void doTest() {
         //    because Toolkit.isFrameStateSupported() method reports these states
         //    as not supported. And such states will simply be skipped.
         examineStates(new int[] {Frame.MAXIMIZED_BOTH, Frame.ICONIFIED, Frame.NORMAL});
+        System.out.println("------");
         examineStates(new int[] {Frame.ICONIFIED, Frame.MAXIMIZED_BOTH, Frame.NORMAL});
+        System.out.println("------");
+        examineStates(new int[] {Frame.NORMAL, Frame.MAXIMIZED_BOTH, Frame.ICONIFIED});
+        System.out.println("------");
+        examineStates(new int[] {Frame.NORMAL, Frame.ICONIFIED, Frame.MAXIMIZED_BOTH});
 
     }