import java.util.concurrent.Future;
import java.util.concurrent.TimeoutException;

/**
 * Testing utilities relating to garbage collection finalization.
 *
 * <p>Use this class to test code triggered by finalization, that is, one of the following
 * actions taken by the java garbage collection system:
 *
 * <ul>
 *   <li>invoking the {@code finalize} methods of unreachable objects

import java.util.concurrent.Future;
import java.util.concurrent.TimeoutException;

/**
 * Testing utilities relating to garbage collection finalization.
 *
 * <p>Use this class to test code triggered by finalization, that is, one of the following
 * actions taken by the java garbage collection system:
 *
 * <ul>
 *   <li>invoking the {@code finalize} methods of unreachable objects

	// Return false for methods other than GET and HEAD.
	if r.Method != http.MethodPut {
		return false
	}
	// If the object doesn't have a modtime (IsZero), or the modtime
	// is obviously garbage (Unix time == 0), then ignore modtimes
	// and don't process the If-Modified-Since header.
	if objInfo.ModTime.IsZero() || objInfo.ModTime.Equal(time.Unix(0, 0)) {
		return false
	}

 *
 * @author mike nonemacher
 */
@SuppressWarnings("GuardedBy") // TODO(b/35466881): Fix or suppress.
class CacheTesting {

  /**
   * Poke into the Cache internals to simulate garbage collection of the value associated with the
   * given key. This assumes that the associated entry is a WeakValueReference or a
   * SoftValueReference (and not a LoadingValueReference), and throws an IllegalStateException if

   *
   * <p>Weak values will be garbage collected once they are weakly reachable. This makes them a poor
   * candidate for caching; consider {@link #softValues} instead.
   *
   * <p><b>Note:</b> when this method is used, the resulting cache will use identity ({@code ==})
   * comparison to determine equality of values.
   *
   * <p>Entries with values that have been garbage collected may be counted in {@link Cache#size},

 *
 * @author mike nonemacher
 */
@SuppressWarnings("GuardedBy") // TODO(b/35466881): Fix or suppress.
class CacheTesting {

  /**
   * Poke into the Cache internals to simulate garbage collection of the value associated with the
   * given key. This assumes that the associated entry is a WeakValueReference or a
   * SoftValueReference (and not a LoadingValueReference), and throws an IllegalStateException if

 * than {@code size()}. Furthermore, this structure only depends on a fixed number of arrays; {@code
 * add(x)} operations <i>do not</i> create objects for the garbage collector to deal with, and for
 * every element added, the garbage collector will have to traverse {@code 1.5} references on
 * average, in the marking phase, not {@code 5.0} as in {@code java.util.HashSet}.
 *

      this.components = components;
    }

    @Override
    public boolean apply(@ParametricNullness T t) {
      // Avoid using the Iterator to avoid generating garbage (issue 820).
      for (int i = 0; i < components.size(); i++) {
        if (!components.get(i).apply(t)) {
          return false;
        }
      }
      return true;
    }

    @Override

 * than {@code size()}. Furthermore, this structure only depends on a fixed number of arrays; {@code
 * add(x)} operations <i>do not</i> create objects for the garbage collector to deal with, and for
 * every element added, the garbage collector will have to traverse {@code 1.5} references on
 * average, in the marking phase, not {@code 5.0} as in {@code java.util.HashSet}.
 *

 * application-specific ordering in addition to performing general cycle detection.
 *
 * <p><strong>Garbage Collection</strong>
 *
 * <p>In order to allow proper garbage collection of unused locks, the edges of the lock graph are
 * weak references.
 *
 * <p><strong>Performance</strong>
 *