| /* |
| * Copyright (c) 2014, 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. |
| */ |
| |
| import java.awt.*; |
| import java.awt.image.BufferedImage; |
| import java.lang.ref.PhantomReference; |
| import java.lang.ref.ReferenceQueue; |
| import java.util.ArrayList; |
| import java.util.Vector; |
| |
| /* |
| * @test |
| * @key headful |
| * @summary Verify that disposed frames are collected with GC |
| * @author Dmitriy Ermashov (dmitriy.ermashov@oracle.com) |
| * @library ../../../../lib/testlibrary |
| * @build ExtendedRobot |
| * @run main/othervm -Xmx20m FramesGC |
| */ |
| |
| |
| public class FramesGC { |
| |
| ExtendedRobot robot; |
| ArrayList<PhantomReference<Frame>> refs = new ArrayList<PhantomReference<Frame>>(); |
| ReferenceQueue<Frame> que = new ReferenceQueue<Frame>(); |
| |
| public static void main(String []args) throws Exception { |
| new FramesGC().doTest(); |
| } |
| |
| FramesGC() throws Exception{ |
| robot = new ExtendedRobot(); |
| } |
| |
| void doTest() throws Exception { |
| for( int i = 1; i <= 3; i++) { |
| final int j = i; |
| EventQueue.invokeAndWait(() -> { |
| createFrame(j); |
| }); |
| } |
| robot.waitForIdle(); |
| |
| for (Frame f : Frame.getFrames()) |
| f.dispose(); |
| |
| robot.waitForIdle(); |
| |
| Vector garbage = new Vector(); |
| while (true) { |
| try { |
| garbage.add(new byte[1000]); |
| } catch (OutOfMemoryError er) { |
| break; |
| } |
| } |
| garbage = null; |
| |
| int count = 1; |
| for(; count <= 3; count++) |
| if(que.remove(5000) == null) |
| break; |
| |
| System.out.println("Total no of instances eligible for GC = " + count); |
| if(count < 3) |
| throw new RuntimeException("Count = "+count+". Test failed!"); |
| |
| } |
| |
| void createFrame(int i){ |
| Frame frame = new Frame("Frame " + i); |
| |
| Button button=new Button("Press Me"); |
| TextArea textArea=new TextArea(5,5); |
| TextField textField=new TextField(10); |
| Choice choice=new Choice(); |
| choice.add("One"); |
| choice.add("Two"); |
| choice.add("Three"); |
| choice.add("Four"); |
| choice.add("Five"); |
| List list = new List(); |
| list.add("One"); |
| list.add("Two"); |
| list.add("Three"); |
| list.add("Four"); |
| list.add("Five"); |
| Checkbox checkBox= new Checkbox("Hai"); |
| Scrollbar scrollBar=new Scrollbar(Scrollbar.VERTICAL,0,1,0,200); |
| CheckboxGroup checkboxGroup=new CheckboxGroup(); |
| Checkbox radioButton=new Checkbox("Hello" ,true, checkboxGroup); |
| Canvas canvas=new Canvas(); |
| canvas.setSize(100, 100); |
| canvas.setBackground(java.awt.Color.red); |
| Label label=new Label("I am label.!"); |
| Cursor customCursor=null; |
| |
| frame.setLayout(new java.awt.FlowLayout()); |
| |
| button.setCursor(new Cursor(Cursor.CROSSHAIR_CURSOR)); |
| label.setCursor(new Cursor(Cursor.TEXT_CURSOR)); |
| choice.setCursor(new Cursor(Cursor.WAIT_CURSOR)); |
| list.setCursor(new Cursor(Cursor.HAND_CURSOR)); |
| checkBox.setCursor(new Cursor(Cursor.MOVE_CURSOR)); |
| radioButton.setCursor(new Cursor(Cursor.SE_RESIZE_CURSOR)); |
| scrollBar.setCursor(new Cursor(Cursor.NW_RESIZE_CURSOR)); |
| canvas.setCursor(new Cursor(Cursor.W_RESIZE_CURSOR)); |
| textField.setCursor(new Cursor(Cursor.DEFAULT_CURSOR)); |
| |
| /* create a custom cursor */ |
| Toolkit toolkit = Toolkit.getDefaultToolkit(); |
| Dimension d = toolkit.getBestCursorSize(32,32); |
| int color = toolkit.getMaximumCursorColors(); |
| |
| if(!d.equals(new Dimension(0,0)) && color != 0 ) |
| customCursor = toolkit.createCustomCursor(new BufferedImage( 16, 16, BufferedImage.TYPE_INT_RGB ), new Point(10, 10), "custom cursor."); |
| else |
| System.err.println("Platform doesn't support to create a custom cursor."); |
| |
| textArea.setCursor(customCursor); |
| frame.add(label); |
| frame.add(button); |
| frame.add(choice); |
| frame.add(list); |
| frame.add(checkBox); |
| frame.add(radioButton); |
| frame.add(scrollBar); |
| frame.add(canvas); |
| frame.add(textArea); |
| frame.add(textField); |
| frame.add(button); |
| |
| frame.setLocation(20, 140 * i); |
| frame.pack(); |
| frame.setVisible(true); |
| refs.add(new PhantomReference<Frame>(frame, que)); |
| } |
| |
| } |