*       ImmutableList<String>};
   *   <li>of the raw type;
   *   <li>null if no value can be generated.
   * </ul>
   */
  final @Nullable Object generateFresh(TypeToken<?> type) {
    Object generated = generate(type);
    if (generated != null) {
      freshness.incrementAndGet();
    }
    return generated;
  }

  final <T> @Nullable T generateFresh(Class<T> type) {

    private static final String[] PHASES = {
        "validate",
        "initialize",
        "generate-sources",
        "process-sources",
        "generate-resources",
        "process-resources",
        "compile",
        "process-classes",
        "generate-test-sources",
        "process-test-sources",
        "generate-test-resources",
        "process-test-resources",
        "test-compile",

   *       ImmutableList<String>};
   *   <li>of the raw type;
   *   <li>null if no value can be generated.
   * </ul>
   */
  final @Nullable Object generateFresh(TypeToken<?> type) {
    Object generated = generate(type);
    if (generated != null) {
      freshness.incrementAndGet();
    }
    return generated;
  }

  final <T> @Nullable T generateFresh(Class<T> type) {

 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 

/**
 * A generator that relies on a preexisting generator for most of its work. For example, a derived
 * iterator generator may delegate the work of creating the underlying collection to an inner
 * collection generator.
 *
 * <p>{@code GwtTestSuiteGenerator} expects every {@code DerivedIterator} implementation to provide
 * a one-arg constructor accepting its inner generator as an argument. This requirement enables it

  }

  public void testConcatInfiniteStream() {
    assertThat(Streams.concat(Stream.of(1, 2, 3), Stream.generate(() -> 5)).limit(5))
        .containsExactly(1, 2, 3, 5, 5)
        .inOrder();
  }

  public void testConcatInfiniteStream_int() {
    assertThat(Streams.concat(IntStream.of(1, 2, 3), IntStream.generate(() -> 5)).limit(5))
        .containsExactly(1, 2, 3, 5, 5)
        .inOrder();
  }

/**
 * A generator that relies on a preexisting generator for most of its work. For example, a derived
 * iterator generator may delegate the work of creating the underlying collection to an inner
 * collection generator.
 *
 * <p>{@code GwtTestSuiteGenerator} expects every {@code DerivedIterator} implementation to provide
 * a one-arg constructor accepting its inner generator as an argument. This requirement enables it

    // cause system property.  This allows us to run with both settings of the property in one jvm
    // without resorting to even crazier hacks to reset static final boolean fields.
    System.setProperty("guava.concurrent.generate_cancellation_cause", "true");
    final String concurrentPackage = SettableFuture.class.getPackage().getName();
    classReloader =
        new URLClassLoader(ClassPathUtil.getClassPathUrls()) {

    INITIALIZE("initialize"),
    GENERATE_SOURCES("generate-sources"),
    PROCESS_SOURCES("process-sources"),
    GENERATE_RESOURCES("generate-resources"),
    PROCESS_RESOURCES("process-resources"),
    COMPILE("compile"),
    PROCESS_CLASSES("process-classes"),
    GENERATE_TEST_SOURCES("generate-test-sources"),
    PROCESS_TEST_SOURCES("process-test-sources"),
    GENERATE_TEST_RESOURCES("generate-test-resources"),

            logger.debug("Create thumbnail task: {}", task);
        }
        return task;
    }

    @Override
    public boolean generate(final String thumbnailId, final File outputFile) {
        if (logger.isDebugEnabled()) {
            logger.debug("Generate Thumbnail: {}", thumbnailId);
        }

        if (outputFile.exists()) {
            if (logger.isDebugEnabled()) {