*     arguments
   */
  boolean apply(@ParametricNullness T input);

  /**
   * Indicates whether another object is equal to this predicate.
   *
   * <p>Most implementations will have no reason to override the behavior of {@link Object#equals}.
   * However, an implementation may also choose to return {@code true} whenever {@code object} is a

  }

  /**
   * Just like fail(reason), but additionally recording (using threadRecordFailure) any
   * AssertionFailedError thrown, so that the current testcase will fail.
   */
  public void threadFail(String reason) {
    try {
      fail(reason);
    } catch (AssertionFailedError t) {
      threadRecordFailure(t);
      fail(reason);
    }
  }

  /**

 * guarantee that as long as we also require the input type to be non-null[*] (which is a
 * requirement that existing callers already fulfill).
 *
 * Disclaimer: Part of the reason that callers are so well adapted to `Function<A, B>` may be that
 * that is how the signature looked even prior to this comment! So naturally any change can break

import com.google.common.collect.ImmutableMap;
import java.util.Arrays;
import java.util.Map;
import junit.framework.TestCase;

/**
 * Tests for {@link MoreObjects#toStringHelper(Object)}.
 *
 * @author Jason Lee
 */
@GwtCompatible
public class ToStringHelperTest extends TestCase {

  @GwtIncompatible // Class names are obfuscated in GWT
  public void testConstructor_instance() {

   * Preconditions.checkNotNull.
   *
   * (verifyNotNull has many fewer "problem" callers, so we could try to be stricter. On the other
   * hand, verifyNotNull arguably has more reason to accept nullable arguments in the first
   * place....)
   */

  /**
   * Ensures that {@code reference} is non-null, throwing a {@code VerifyException} with a default
   * message otherwise.
   *

   *
   * <p>Assuming we have saturated demand, the time to go from maxPermits to thresholdPermits is
   * equal to warmupPeriod. And the time to go from thresholdPermits to 0 is warmupPeriod/2. (The
   * reason that this is warmupPeriod/2 is to maintain the behavior of the original implementation
   * where coldFactor was hard coded as 3.)
   *
   * <p>It remains to calculate thresholdsPermits and maxPermits.
   *
   * <ul>

   */
  public static ToStringHelper toStringHelper(String className) {
    return new ToStringHelper(className);
  }

  /**
   * Support class for {@link MoreObjects#toStringHelper}.
   *
   * @author Jason Lee
   * @since 18.0 (since 2.0 as {@code Objects.ToStringHelper}).
   */
  public static final class ToStringHelper {
    private final String className;
    private final ValueHolder holderHead = new ValueHolder();

    return new ArrayList<>();
  }

  /**
   * Creates a <i>mutable</i> {@code ArrayList} instance containing the given elements.
   *
   * <p><b>Note:</b> essentially the only reason to use this method is when you will need to add or
   * remove elements later. Otherwise, for non-null elements use {@link ImmutableList#of()} (for

    CombinedFutureInterruptibleTask<?> localTask = task;
    if (localTask != null) {
      localTask.execute();
    }
  }

  @Override
  void releaseResources(ReleaseResourcesReason reason) {
    super.releaseResources(reason);
    /*
     * If the output future is done, then it won't need to interrupt the task later, so it can clear
     * its reference to it.
     *

   */
  @Override
  protected void expectContents(Collection<E> expectedCollection) {
    List<E> expectedList = Helpers.copyToList(expectedCollection);
    // Avoid expectEquals() here to delay reason manufacture until necessary.
    if (getList().size() != expectedList.size()) {
      fail("size mismatch: " + reportContext(expectedList));
    }
    for (int i = 0; i < expectedList.size(); i++) {