* @author Justin T. Sampson
 */
public final class TestThread<L> extends Thread implements TearDown {

  private static final long DUE_DILIGENCE_MILLIS = 100;
  private static final long TIMEOUT_MILLIS = 5000;

  private final L lockLikeObject;

  private final SynchronousQueue<Request> requestQueue = new SynchronousQueue<>();
  private final SynchronousQueue<Response> responseQueue = new SynchronousQueue<>();

/*
 * Copyright (C) 2006 The Guava Authors
 *
 * Licensed 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

/*
 * Copyright (C) 2006 The Guava Authors
 *
 * Licensed 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,

        CacheBuilder.newBuilder()
            .recordStats()
            .concurrencyLevel(2)
            .expireAfterWrite(100, MILLISECONDS)
            .removalListener(removalListener)
            .maximumSize(5000)
            .build(countingIdentityLoader);

    ExecutorService threadPool = Executors.newFixedThreadPool(nThreads);
    for (int i = 0; i < nTasks; i++) {

   * not possible to protect against this if the file system doesn't.
   */
  public void testDirectoryDeletion_directorySymlinkRace() throws IOException {
    int iterations = isAndroid() ? 100 : 5000;
    for (DirectoryDeleteMethod method : EnumSet.allOf(DirectoryDeleteMethod.class)) {
      try (FileSystem fs = newTestFileSystem(SECURE_DIRECTORY_STREAM)) {
        Path dirToDelete = fs.getPath("dir/b/i");

    for (int i = 0; i < 8; i++) {
      limiter.acquire(); // #1
    }
    stopwatch.sleepMillis(500); // #2: to repay for the last acquire
    stopwatch.sleepMillis(4000); // #3: becomes cold again
    for (int i = 0; i < 8; i++) {
      limiter.acquire(); // // #4
    }
    stopwatch.sleepMillis(500); // #5: to repay for the last acquire

    assertThat(InetAddresses.getCoercedIPv4Address(InetAddresses.forString("2002:0102:0304::1")))
        .isNotEqualTo(
            InetAddresses.getCoercedIPv4Address(InetAddresses.forString("2002:0506:0708::1")));

    // 2 6to4 addresses NOT differing in the embedded IPv4 address should
    // hash to the same value.
    assertThat(InetAddresses.getCoercedIPv4Address(InetAddresses.forString("2002:0102:0304::1")))

    for (int i = 0; i < 8; i++) {
      limiter.acquire(); // #1
    }
    stopwatch.sleepMillis(500); // #2: to repay for the last acquire
    stopwatch.sleepMillis(4000); // #3: becomes cold again
    for (int i = 0; i < 8; i++) {
      limiter.acquire(); // // #4
    }
    stopwatch.sleepMillis(500); // #5: to repay for the last acquire

 * second. This could be accomplished by requiring a permit per byte, and specifying a rate of 5000
 * permits per second:
 *
 * <pre>{@code
 * final RateLimiter rateLimiter = RateLimiter.create(5000.0); // rate = 5000 permits per second
 * void submitPacket(byte[] packet) {
 *   rateLimiter.acquire(packet.length);
 *   networkService.send(packet);
 * }
 * }</pre>
 *

            it.start();

            final Process currentProcess = jobProcess.getProcess();
            currentProcess.waitFor();
            it.join(5000);

            final int exitValue = currentProcess.exitValue();

            if (logger.isInfoEnabled()) {
                logger.info("ThumbnailGenerator: Exit Code={} - Process Output:\n{}", exitValue, it.getOutput());