java2script
diff --git a/‎sources/net.sf.j2s.java.core/dist/SwingJS-site.zip‎
-459 Bytes b/‎sources/net.sf.j2s.java.core/dist/SwingJS-site.zip‎
-459 Bytes
diff --git a/‎sources/net.sf.j2s.java.core/src/java/awt/Container.java‎
Lines changed: 1 addition & 1 deletion b/‎sources/net.sf.j2s.java.core/src/java/awt/Container.java‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎sources/net.sf.j2s.java.core/src/javax/swing/JFrame.java‎
Lines changed: 6 additions & 2 deletions b/‎sources/net.sf.j2s.java.core/src/javax/swing/JFrame.java‎
Lines changed: 6 additions & 2 deletions
@@ -428,7 +428,7 @@ private void checkAddToSelf(Component comp){
      * Checks that the component is not a Window instance.
      */
     private void checkNotAWindow(Component comp){
-        if (comp instanceof Window) {
+        if (comp instanceof Window && ((JSComponent) comp).getUIClassID() != "InternalFrameUI") {
             throw new IllegalArgumentException("adding a window to a container");
         }
     }
 
@@ -260,12 +260,16 @@ public JFrame(String title) {
 	 * 
 	 */
 	public JFrame(String title, GraphicsConfiguration gc) {
+		this(title, gc, "FrameUI");
+	}
+	
+	public JFrame(String title, GraphicsConfiguration gc, String uiid) {
 		initTitleGC(title, gc);
 		enableEvents(AWTEvent.KEY_EVENT_MASK | AWTEvent.WINDOW_EVENT_MASK);
 		setLocale(JComponent.getDefaultLocale());
-		uiClassID = "FrameUI";
+		uiClassID = uiid;
 		setRootPane(createRootPane());
-    rootPane.setFrameViewer(setFrameViewer(null));
+		rootPane.setFrameViewer(setFrameViewer(null));
 		setBackground(UIManager.getColor("control"));
 		setRootPaneCheckingEnabled(true);
 		if (JFrame.isDefaultLookAndFeelDecorated()) {
Original file line number	Diff line number	Diff line change
`@@ -428,7 +428,7 @@ private void checkAddToSelf(Component comp){`
`428`	`428`	`* Checks that the component is not a Window instance.`
`429`	`429`	`*/`
`430`	`430`	`private void checkNotAWindow(Component comp){`
`431`		`- if (comp instanceof Window) {`
	`431`	`+ if (comp instanceof Window && ((JSComponent) comp).getUIClassID() != "InternalFrameUI") {`
`432`	`432`	`throw new IllegalArgumentException("adding a window to a container");`
`433`	`433`	`}`
`434`	`434`	`}`