0N/A/*
2362N/A * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
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0N/A */
0N/A
0N/A/* @test
0N/A * @bug 4332184
0N/A * @summary Ensure that ObjectOutputStream properly releases strong references
0N/A * to written objects when reset() is called.
0N/A */
0N/A
0N/Aimport java.io.*;
0N/Aimport java.lang.ref.WeakReference;
0N/Aimport java.util.ArrayList;
0N/A
0N/Apublic class ClearHandleTable {
0N/A public static void main(String[] args) throws Exception {
0N/A final int nreps = 100;
0N/A ObjectOutputStream oout =
0N/A new ObjectOutputStream(new ByteArrayOutputStream());
0N/A WeakReference[] refs = new WeakReference[nreps];
0N/A
0N/A for (int i = 0; i < nreps; i++) {
0N/A String str = new String("blargh");
0N/A oout.writeObject(str);
0N/A refs[i] = new WeakReference(str);
0N/A }
0N/A
0N/A oout.reset();
0N/A exhaustMemory();
0N/A
0N/A for (int i = 0; i < nreps; i++) {
0N/A if (refs[i].get() != null) {
0N/A throw new Error("failed to garbage collect object " + i);
0N/A }
0N/A }
0N/A }
0N/A
0N/A static void exhaustMemory() {
0N/A ArrayList blob = new ArrayList();
0N/A try {
0N/A for (;;) {
0N/A blob.add(new int[0xFFFF]);
0N/A }
0N/A } catch (OutOfMemoryError e) {
0N/A }
0N/A }
0N/A}