ResourceLeakDetectorTest.java — netty Source File

Source Code

/*
 * Copyright 2016 The Netty Project
 *
 * The Netty Project 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:
 *
 *   https://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 io.netty.util;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.Timeout;

import java.util.ArrayDeque;
import java.util.Queue;
import java.util.UUID;
import java.util.concurrent.CyclicBarrier;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.fail;

public class ResourceLeakDetectorTest {
    @SuppressWarnings("unused")
    private static volatile int sink;

    @Test
    @Timeout(value = 60000, unit = TimeUnit.MILLISECONDS)
    public void testConcurrentUsage() throws Throwable {
        final AtomicBoolean finished = new AtomicBoolean();
        final AtomicReference<Throwable> error = new AtomicReference<Throwable>();
        // With 50 threads issue #6087 is reproducible on every run.
        Thread[] threads = new Thread[50];
        final CyclicBarrier barrier = new CyclicBarrier(threads.length);
        for (int i = 0; i < threads.length; i++) {
            Thread t = new Thread(new Runnable() {
                final Queue<LeakAwareResource> resources = new ArrayDeque<LeakAwareResource>(100);

                @Override
                public void run() {
                    try {
                        barrier.await();

                        // Run 10000 times or until the test is marked as finished.
                        for (int b = 0; b < 1000 && !finished.get(); b++) {

                            // Allocate 100 LeakAwareResource per run and close them after it.
                            for (int a = 0; a < 100; a++) {
                                DefaultResource resource = new DefaultResource();
                                ResourceLeakTracker<Resource> leak = DefaultResource.detector.track(resource);
// ... (246 more lines)