Mercurial > jdk8-mips64-public > hotspot / annotate
test/compiler/7190310/Test7190310.java@2f6dc76eb8e5 (annotated)
test/compiler/7190310/Test7190310.java
Thu, 29 Nov 2012 11:30:04 -0800
- author
- katleman
- date
- Thu, 29 Nov 2012 11:30:04 -0800
- changeset 4283
- 2f6dc76eb8e5
- parent 4002
- 09aad8452938
- child 4449
- bf623b2d5508
- permissions
- -rw-r--r--
Added tag jdk8-b66 for changeset 01684f7fee1b
| kvn@4002 | 1 | /* |
| kvn@4002 | 2 | * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
| kvn@4002 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| kvn@4002 | 4 | * |
| kvn@4002 | 5 | * This code is free software; you can redistribute it and/or modify it |
| kvn@4002 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| kvn@4002 | 7 | * published by the Free Software Foundation. |
| kvn@4002 | 8 | * |
| kvn@4002 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| kvn@4002 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| kvn@4002 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| kvn@4002 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| kvn@4002 | 13 | * accompanied this code). |
| kvn@4002 | 14 | * |
| kvn@4002 | 15 | * You should have received a copy of the GNU General Public License version |
| kvn@4002 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| kvn@4002 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| kvn@4002 | 18 | * |
| kvn@4002 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| kvn@4002 | 20 | * or visit www.oracle.com if you need additional information or have any |
| kvn@4002 | 21 | * questions. |
| kvn@4002 | 22 | * |
| kvn@4002 | 23 | */ |
| kvn@4002 | 24 | |
| kvn@4002 | 25 | /* |
| kvn@4002 | 26 | * Manual test |
| kvn@4002 | 27 | */ |
| kvn@4002 | 28 | |
| kvn@4002 | 29 | import java.lang.ref.*; |
| kvn@4002 | 30 | |
| kvn@4002 | 31 | public class Test7190310 { |
| kvn@4002 | 32 | private static Object str = new Object() { |
| kvn@4002 | 33 | public String toString() { |
| kvn@4002 | 34 | return "The Object"; |
| kvn@4002 | 35 | } |
| kvn@4002 | 36 | |
| kvn@4002 | 37 | protected void finalize() throws Throwable { |
| kvn@4002 | 38 | System.out.println("The Object is being finalized"); |
| kvn@4002 | 39 | super.finalize(); |
| kvn@4002 | 40 | } |
| kvn@4002 | 41 | }; |
| kvn@4002 | 42 | private final static ReferenceQueue<Object> rq = |
| kvn@4002 | 43 | new ReferenceQueue<Object>(); |
| kvn@4002 | 44 | private final static WeakReference<Object> wr = |
| kvn@4002 | 45 | new WeakReference<Object>(str, rq); |
| kvn@4002 | 46 | |
| kvn@4002 | 47 | public static void main(String[] args) |
| kvn@4002 | 48 | throws InterruptedException { |
| kvn@4002 | 49 | Thread reader = new Thread() { |
| kvn@4002 | 50 | public void run() { |
| kvn@4002 | 51 | while (wr.get() != null) { |
| kvn@4002 | 52 | } |
| kvn@4002 | 53 | System.out.println("wr.get() returned null"); |
| kvn@4002 | 54 | } |
| kvn@4002 | 55 | }; |
| kvn@4002 | 56 | |
| kvn@4002 | 57 | Thread queueReader = new Thread() { |
| kvn@4002 | 58 | public void run() { |
| kvn@4002 | 59 | try { |
| kvn@4002 | 60 | Reference<? extends Object> ref = rq.remove(); |
| kvn@4002 | 61 | System.out.println(ref); |
| kvn@4002 | 62 | System.out.println("queueReader returned, ref==wr is " |
| kvn@4002 | 63 | + (ref == wr)); |
| kvn@4002 | 64 | } catch (InterruptedException e) { |
| kvn@4002 | 65 | System.err.println("Sleep interrupted - exiting"); |
| kvn@4002 | 66 | } |
| kvn@4002 | 67 | } |
| kvn@4002 | 68 | }; |
| kvn@4002 | 69 | |
| kvn@4002 | 70 | reader.start(); |
| kvn@4002 | 71 | queueReader.start(); |
| kvn@4002 | 72 | |
| kvn@4002 | 73 | Thread.sleep(1000); |
| kvn@4002 | 74 | str = null; |
| kvn@4002 | 75 | System.gc(); |
| kvn@4002 | 76 | } |
| kvn@4002 | 77 | } |
| kvn@4002 | 78 |
