diff --git a/pom.xml b/pom.xml index 7d4e3b2..b1183ad 100644 --- a/pom.xml +++ b/pom.xml @@ -328,6 +328,7 @@ under the License. **/AvalonLoggerTestCase.java + **/WeakHashTableTestCase.java diff --git a/src/test/org/apache/commons/logging/WeakHashTableTestCase.java b/src/test/org/apache/commons/logging/WeakHashTableTestCase.java new file mode 100644 index 0000000..9a20bb7 --- /dev/null +++ b/src/test/org/apache/commons/logging/WeakHashTableTestCase.java @@ -0,0 +1,75 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.commons.logging; + +import junit.framework.TestCase; + +import org.apache.commons.logging.impl.WeakHashtable; + +public class WeakHashTableTestCase extends TestCase { + + private static final int WAIT_FOR_THREAD_COMPLETION = 5000; // 5 seconds + private static final int RUN_LOOPS = 1500; + private static final int OUTER_LOOP = 100; + private static final int THREAD_COUNT = 10; + + private static WeakHashtable hashtable; + + public static class StupidThread extends Thread { + + public StupidThread(String name){ + super(name); + } + + public void run() { + for (int i = 0; i < RUN_LOOPS; i++) { + hashtable.put("key"+":"+(i%10), Boolean.TRUE); + if(i%50==0) { + yield(); + } + } + } + } + + public void testLOGGING_119() throws Exception { + Thread [] t = new Thread[THREAD_COUNT]; + for (int j=1; j <= OUTER_LOOP; j++) { + hashtable = new WeakHashtable(); + for (int i = 0; i < t.length; i++) { + t[i] = new StupidThread("Thread:"+i); + t[i].setDaemon(true); // Otherwise we cannot exit + t[i].start(); + } + for (int i = 0; i < t.length; i++) { + t[i].join(WAIT_FOR_THREAD_COMPLETION); + if (t[i].isAlive()) { + break; // at least one thread is stuck + } + } + int active=0; + for (int i = 0; i < t.length; i++) { + if (t[i].isAlive()) { + active++; + } + } + if (active > 0) { + fail("Attempt: "+j+" Stuck threads: "+active); + } + } + } +}