1 /* 2 * Copyright (c) 2016, 2017, 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 import java.awt.*; 25 import java.util.concurrent.CountDownLatch; 26 import java.util.concurrent.TimeUnit; 27 28 /** 29 * @test 30 * @bug 8177758 31 * @summary Regression in java.awt.FileDialog 32 * @run main FileDialogLeakTest 33 */ 34 35 public class FileDialogLeakTest { 36 static CountDownLatch latch = new CountDownLatch(3); 37 static boolean passed; 38 39 public static void main(String[] args) throws Exception { 40 test(); 41 System.gc(); 42 System.runFinalization(); 43 latch.await(1, TimeUnit.SECONDS); 44 if (!passed) { 45 throw new RuntimeException("Test failed."); 46 } 47 } 48 49 private static void test() throws Exception { 50 FileDialog fd = new FileDialog((Frame) null) { 51 @Override 52 protected void finalize() throws Throwable { 53 System.out.println("Finalize"); 54 super.finalize(); 55 passed = true; 56 latch.countDown(); 57 } 58 }; 59 60 new Thread(() -> { 61 latch.countDown(); 62 fd.setVisible(true); 63 latch.countDown(); 64 }).start(); 65 latch.await(1, TimeUnit.SECONDS); 66 fd.dispose(); 67 latch.await(1, TimeUnit.SECONDS); 68 } 69 70 } 71