1 /* 2 * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @key headful 27 * @bug 6396844 28 * @summary Tests memory leak for 20000 files 29 * @author Sergey Malenkov 30 * @library ../../regtesthelpers 31 * @modules java.desktop/sun.java2d 32 * @build Util 33 * @run main/othervm/timeout=1000 -mx128m TwentyThousandTest 34 */ 35 36 import sun.java2d.Disposer; 37 import sun.java2d.DisposerRecord; 38 39 import javax.swing.*; 40 import java.awt.event.HierarchyEvent; 41 import java.awt.event.HierarchyListener; 42 import java.io.File; 43 import java.io.FileWriter; 44 45 public class TwentyThousandTest { 46 47 private static final int FILES = 20000; 48 private static final int ATTEMPTS = 20; 49 private static final int INTERVAL = 100; 50 51 private static String tmpDir; 52 53 private static volatile boolean disposerComplete; 54 55 public static void main(String[] args) throws Exception { 56 tmpDir = System.getProperty("java.io.tmpdir"); 57 58 if (tmpDir.length() == 0) { //'java.io.tmpdir' isn't guaranteed to be defined 59 tmpDir = System.getProperty("user.home"); 60 } 61 62 System.out.println("Temp directory: " + tmpDir); 63 64 System.out.println("Creating " + FILES + " files"); 65 66 for (int i = 0; i < FILES; i++) { 67 File file = getTempFile(i); 68 69 FileWriter writer = new FileWriter(file); 70 writer.write("File " + i); 71 writer.close(); 72 } 73 74 for (UIManager.LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) { 75 if (laf.getClassName().contains("Motif")) { 76 continue; 77 } 78 79 UIManager.setLookAndFeel(laf.getClassName()); 80 81 System.out.println("Do " + ATTEMPTS + " attempts for " + laf.getClassName()); 82 83 for (int i = 0; i < ATTEMPTS; i++) { 84 System.out.print(i + " "); 85 86 doAttempt(); 87 } 88 89 System.out.println(); 90 } 91 92 System.out.println("Removing " + FILES + " files"); 93 94 for (int i = 0; i < FILES; i++) { 95 getTempFile(i).delete(); 96 } 97 98 System.out.println("Test passed successfully"); 99 } 100 101 private static File getTempFile(int i) { 102 return new File(tmpDir, "temp" + i + ".txt"); 103 } 104 105 private static void doAttempt() throws Exception { 106 SwingUtilities.invokeAndWait(new Runnable() { 107 public void run() { 108 final JFileChooser chooser = new JFileChooser(tmpDir); 109 110 chooser.updateUI(); 111 112 // Postpone JFileChooser closing until it becomes visible 113 chooser.addHierarchyListener(new HierarchyListener() { 114 @Override 115 public void hierarchyChanged(HierarchyEvent e) { 116 if ((e.getChangeFlags() & HierarchyEvent.SHOWING_CHANGED) != 0) { 117 if (chooser.isShowing()) { 118 Thread thread = new Thread(new Runnable() { 119 public void run() { 120 try { 121 Thread.sleep(INTERVAL); 122 123 // Close JFileChooser 124 SwingUtilities.invokeLater(new Runnable() { 125 public void run() { 126 chooser.cancelSelection(); 127 } 128 }); 129 } catch (InterruptedException e) { 130 throw new RuntimeException(e); 131 } 132 } 133 }); 134 135 thread.start(); 136 } 137 } 138 } 139 }); 140 141 chooser.showOpenDialog(null); 142 } 143 }); 144 145 DisposerRecord disposerRecord = new DisposerRecord() { 146 public void dispose() { 147 disposerComplete = true; 148 } 149 }; 150 151 disposerComplete = false; 152 153 Disposer.addRecord(new Object(), disposerRecord); 154 155 while (!disposerComplete) { 156 Util.generateOOME(); 157 } 158 } 159 }