6895647: Frame may jump to an unpredicted location upon entering the non-opaque mode on X11

Summary: Make sure the size hints are set before mapping the window on the screen
Reviewed-by: art, dcherepanov

src/solaris/classes/sun/awt/X11/XDecoratedPeer.java

@@ -87,11 +87,15 @@ abstract class XDecoratedPeer extends XWindowPeer {
     }
 
     void postInit(XCreateWindowParams params) {
+        // The size hints must be set BEFORE mapping the window (see 6895647)
+        updateSizeHints(dimensions);
+
+        // The super method maps the window if it's visible on the shared level
         super.postInit(params);
+
         // The lines that follow need to be in a postInit, so they
         // happen after the X window is created.
         initResizability();
-        updateSizeHints(dimensions);
         XWM.requestWMExtents(getWindow());
 
         content = XContentWindow.createContent(this);

test/java/awt/Frame/FrameLocation/FrameLocation.java

+/*
+ * Copyright (c) 2010, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+  @test
+  @bug 6895647
+  @summary X11 Frame locations should be what we set them to
+  @author anthony.petrov@oracle.com: area=awt.toplevel
+  @run main FrameLocation
+ */
+
+import java.awt.*;
+
+public class FrameLocation {
+    private static final int X = 250;
+    private static final int Y = 250;
+
+    public static void main(String[] args) {
+        Frame f = new Frame("test");
+        f.setBounds(X, Y, 250, 250); // the size doesn't matter
+        f.setVisible(true);
+
+        for (int i = 0; i < 10; i++) {
+            // 2 seconds must be enough for the WM to show the window
+            try {
+                Thread.sleep(2000);
+            } catch (InterruptedException ex) {
+            }
+
+            // Check the location
+            int x = f.getX();
+            int y = f.getY();
+
+            if (x != X || y != Y) {
+                throw new RuntimeException("The frame location is wrong! Current: " + x + ", " + y + ";  expected: " + X + ", " + Y);
+            }
+
+            // Emulate what happens when setGraphicsConfiguration() is called
+            synchronized (f.getTreeLock()) {
+                f.removeNotify();
+                f.addNotify();
+            }
+        }
+
+        f.dispose();
+    }
+}
+