TestUtils.java — netty Source File

Source Code

/*
 * Copyright 2012 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.testsuite.util;

import io.netty.util.CharsetUtil;
import io.netty.util.internal.ObjectUtil;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
import org.junit.jupiter.api.TestInfo;
import org.tukaani.xz.LZMA2Options;
import org.tukaani.xz.XZOutputStream;

import javax.management.MBeanServer;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
import java.lang.reflect.Method;
import java.nio.channels.Channel;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.concurrent.TimeUnit;
import java.util.function.Function;

public final class TestUtils {

    private static final InternalLogger logger = InternalLoggerFactory.getInstance(TestUtils.class);

    private static final Method hotspotMXBeanDumpHeap;
    private static final Object hotspotMXBean;

    private static final long DUMP_PROGRESS_LOGGING_INTERVAL = TimeUnit.SECONDS.toNanos(5);

    static {
        // Retrieve the hotspot MXBean and its class if available.
        Object mxBean;
        Method mxBeanDumpHeap;
        try {
            Class<?> clazz = Class.forName("com.sun.management.HotSpotDiagnosticMXBean");
            MBeanServer server = ManagementFactory.getPlatformMBeanServer();
            mxBean = ManagementFactory.newPlatformMXBeanProxy(
// ... (184 more lines)