* class-unloading when ThreadLocals are not removed.
   */
  static final ThreadLocal<int @Nullable []> threadHashCode = new ThreadLocal<>();

  /** Generator of new random hash codes */
  static final Random rng = new Random();

  /** Number of CPUS, to place bound on table size */
  static final int NCPU = Runtime.getRuntime().availableProcessors();

    int nThreads = 100;
    final int getsPerTask = 1000;
    final int nUniqueKeys = 10000;
    final Random random = new Random(); // Randoms.insecureRandom();

    QueuingRemovalListener<String, String> removalListener = queuingRemovalListener();
    final AtomicInteger computeCount = new AtomicInteger();
    final AtomicInteger exceptionCount = new AtomicInteger();
    final AtomicInteger computeNullCount = new AtomicInteger();

public class JobProcess {
    protected Process process;

    protected InputStreamThread inputStreamThread;

    public JobProcess(final Process process) {
        this(process, InputStreamThread.MAX_BUFFER_SIZE, null);
    }

    public JobProcess(final Process process, final int bufferSize, final Consumer<String> outputCallback) {
        this.process = process;

        final String[] a = new String[] { "1", "2" };
        final String[] b = (String[]) SerializeUtil.serialize(a);
        assertEquals("1", b.length, a.length);
        assertEquals("2", "1", b[0]);
        assertEquals("3", "2", b[1]);
    }

    /**
     * @throws Exception
     */
    public void testObjectAndBinary() throws Exception {
        final String o = "hoge";

public class PurgeThumbnailJob {
    private static final Logger logger = LogManager.getLogger(PurgeThumbnailJob.class);

    private long expiry = 30 * 24 * 60 * 60 * 1000L;

    public String execute() {
        try {
            final long count = ComponentUtil.getThumbnailManager().purge(getExpiry());
            return "Deleted " + count + " thumbnail files.";
        } catch (final Exception e) {

    abstract int decrementAndGetRemainingCount(AggregateFutureState<?> state);
  }

  private static final class SafeAtomicHelper extends AtomicHelper {
    final AtomicReferenceFieldUpdater<
            ? super AggregateFutureState<?>, ? super @Nullable Set<Throwable>>
        seenExceptionsUpdater;

    final AtomicIntegerFieldUpdater<? super AggregateFutureState<?>> remainingCountUpdater;

    SafeAtomicHelper(

            ScoreFunctionCall<ScoreFunctionCreator<WebAuthenticationCQ>> functionsLambda,
            final ConditionOptionCall<FunctionScoreQueryBuilder> opLambda) {
        WebAuthenticationCQ cq = new WebAuthenticationCQ();
        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {

            ScoreFunctionCall<ScoreFunctionCreator<FileAuthenticationCQ>> functionsLambda,
            final ConditionOptionCall<FunctionScoreQueryBuilder> opLambda) {
        FileAuthenticationCQ cq = new FileAuthenticationCQ();
        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {

            ScoreFunctionCall<ScoreFunctionCreator<AccessTokenCQ>> functionsLambda,
            final ConditionOptionCall<FunctionScoreQueryBuilder> opLambda) {
        AccessTokenCQ cq = new AccessTokenCQ();
        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {

            ScoreFunctionCall<ScoreFunctionCreator<RelatedContentCQ>> functionsLambda,
            final ConditionOptionCall<FunctionScoreQueryBuilder> opLambda) {
        RelatedContentCQ cq = new RelatedContentCQ();
        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {