diff --git a/jdk/src/java.desktop/share/classes/java/awt/Component.java b/jdk/src/java.desktop/share/classes/java/awt/Component.java index 99b2d570bd7..deff1a9e0ae 100644 --- a/jdk/src/java.desktop/share/classes/java/awt/Component.java +++ b/jdk/src/java.desktop/share/classes/java/awt/Component.java @@ -3980,9 +3980,10 @@ public abstract class Component implements ImageObserver, MenuContainer, /** * Inner class for flipping buffers on a component. That component must - * be a Canvas or Window. + * be a Canvas or Window or Applet. * @see Canvas * @see Window + * @see Applet * @see java.awt.image.BufferStrategy * @author Michael Martak * @since 1.4 @@ -4030,9 +4031,11 @@ public abstract class Component implements ImageObserver, MenuContainer, /** * Creates a new flipping buffer strategy for this component. - * The component must be a Canvas or Window. + * The component must be a Canvas or Window or + * Applet. * @see Canvas * @see Window + * @see Applet * @param numBuffers the number of buffers * @param caps the capabilities of the buffers * @exception AWTException if the capabilities supplied could not be @@ -4049,10 +4052,11 @@ public abstract class Component implements ImageObserver, MenuContainer, throws AWTException { if (!(Component.this instanceof Window) && - !(Component.this instanceof Canvas)) + !(Component.this instanceof Canvas) && + !(Component.this instanceof Applet)) { throw new ClassCastException( - "Component must be a Canvas or Window"); + "Component must be a Canvas or Window or Applet"); } this.numBuffers = numBuffers; this.caps = caps; diff --git a/jdk/test/java/awt/applet/Applet/AppletFlipBuffer.java b/jdk/test/java/awt/applet/Applet/AppletFlipBuffer.java new file mode 100644 index 00000000000..65767e4c684 --- /dev/null +++ b/jdk/test/java/awt/applet/Applet/AppletFlipBuffer.java @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2015, 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 8130390 + @summary Applet fails to launch on virtual desktop + @author Semyon Sadetsky + */ + +import sun.awt.AWTAccessor; + +import java.applet.Applet; +import java.awt.*; + +public class AppletFlipBuffer { + public static void main(String[] args) throws Exception { + Applet applet = new Applet(); + AWTAccessor.ComponentAccessor componentAccessor + = AWTAccessor.getComponentAccessor(); + BufferCapabilities caps = new BufferCapabilities( + new ImageCapabilities(true), new ImageCapabilities(true), + BufferCapabilities.FlipContents.BACKGROUND); + Frame frame = new Frame(); + try { + frame.add(applet); + frame.setUndecorated(true); + frame.setVisible(true); + componentAccessor.createBufferStrategy(applet, 2, caps); + System.out.println("ok"); + } + finally { + frame.dispose(); + } + } +} \ No newline at end of file