| /* |
| * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.testing.tests.identitymaps; |
| |
| import java.util.*; |
| import org.eclipse.persistence.testing.framework.*; |
| import org.eclipse.persistence.internal.identitymaps.*; |
| import org.eclipse.persistence.testing.models.employee.domain.*; |
| |
| /** |
| * Read objects into the cache, force garbage collection, see that the cache is empty. |
| */ |
| public class ConcurrentIdentityMapKeyEnumerationTest extends TestCase { |
| protected boolean shouldRun; |
| protected Object storedObject; |
| protected FullIdentityMap identityMap; |
| |
| public ConcurrentIdentityMapKeyEnumerationTest() { |
| identityMap = new FullIdentityMap(1, null, null, false); |
| } |
| |
| @Override |
| public void reset() { |
| shouldRun = false; |
| } |
| |
| @Override |
| public void setup() { |
| storedObject = getSession().readObject(Employee.class); |
| shouldRun = true; |
| } |
| |
| @Override |
| public void test() { |
| Thread enumeration = new Thread() { |
| @Override |
| public void run() { |
| while (shouldRun) { |
| Enumeration keys = identityMap.keys(); |
| while (keys.hasMoreElements()) { |
| try { |
| Object key = keys.nextElement(); |
| } catch (Exception ex) { |
| shouldRun = false; |
| synchronized (storedObject) { |
| storedObject.notifyAll(); |
| } |
| } |
| } |
| } |
| } |
| }; |
| enumeration.start(); |
| Thread remover = new Thread() { |
| @Override |
| public void run() { |
| Vector pk = new Vector(1); |
| pk.add(((Employee)storedObject).getId()); |
| while (shouldRun) { |
| identityMap.put(pk, storedObject, null, 0); |
| try { |
| Thread.sleep(2); |
| } catch (InterruptedException ex) { |
| shouldRun = false; |
| synchronized (storedObject) { |
| storedObject.notifyAll(); |
| } |
| } |
| identityMap.remove(pk, null); |
| } |
| } |
| }; |
| remover.start(); |
| try { |
| synchronized (storedObject) { |
| storedObject.wait(30000); |
| } |
| } catch (InterruptedException ex) { |
| } |
| if (shouldRun == false) { |
| throw new TestErrorException("Failed to ignore nulls while enumeration identitymap"); |
| } else { |
| shouldRun = false; |
| } |
| } |
| } |