82 lines
3.0 KiB
Java
82 lines
3.0 KiB
Java
/*
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* Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4292503
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* @summary OutOfMemoryError with lots of Robot.createScreenCapture
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @requires (os.family == "linux")
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* @run main/manual CreateScreenCapture
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*/
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import java.awt.Dialog;
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import java.awt.Frame;
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import java.awt.Image;
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import java.awt.Rectangle;
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import java.awt.Robot;
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import java.awt.TextArea;
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public class CreateScreenCapture {
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static TextArea messageText;
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private static final String INSTRUCTIONS = """
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This test is linux only!
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Once you see these instructions, run 'top' program.
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Watch for java process.
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The memory size used by this process should stop growing after several steps.
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Numbers of steps test is performing are displayed in output window.
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After 5-7 steps the size taken by the process should become stable.
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If this happens, then test passed otherwise test failed.
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Small oscillations of the memory size are, however, acceptable.""";
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public static void main(String[] args) throws Exception {
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Robot robot = new Robot();
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PassFailJFrame passFail = new PassFailJFrame(INSTRUCTIONS);
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Dialog dialog = new Dialog(new Frame(), "Instructions");
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messageText = new TextArea("", 5, 80, TextArea.SCROLLBARS_BOTH);
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dialog.add(messageText);
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PassFailJFrame.addTestWindow(dialog);
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PassFailJFrame.positionTestWindow(dialog, PassFailJFrame.Position.HORIZONTAL);
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dialog.setSize(200, 300);
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dialog.setVisible(true);
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Rectangle rect = new Rectangle(0, 0, 1000, 1000);
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for (int i = 0; i < 100; i++) {
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Image image = robot.createScreenCapture(rect);
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image.flush();
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image = null;
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robot.delay(200);
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log("step #" + i);
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}
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passFail.awaitAndCheck();
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}
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private static void log(String messageIn) {
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messageText.append(messageIn + "\n");
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}
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}
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