* @return a cache loader that loads values by calling {@link Supplier#get}, irrespective of the
   *     key
   */
  public static <V> CacheLoader<Object, V> from(Supplier<V> supplier) {
    return new SupplierToCacheLoader<>(supplier);
  }

  private static final class FunctionToCacheLoader<K, V> extends CacheLoader<K, V>
      implements Serializable {
    private final Function<K, V> computingFunction;

    // Behaviour analogous to AbstractFuture#toString().
    return super.toString() + "[status=SUCCESS, result=[" + value + "]]";
  }

  static final class ImmediateFailedFuture<V extends @Nullable Object> extends TrustedFuture<V> {
    ImmediateFailedFuture(Throwable thrown) {
      setException(thrown);
    }
  }

  static final class ImmediateCancelledFuture<V extends @Nullable Object> extends TrustedFuture<V> {

package com.google.common.util.concurrent;

import static com.google.common.base.StandardSystemProperty.JAVA_SPECIFICATION_VERSION;
import static com.google.common.base.StandardSystemProperty.OS_NAME;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import static com.google.common.util.concurrent.MoreExecutors.directExecutor;
import static org.junit.Assert.assertThrows;

import static com.google.common.base.Functions.constant;
import static com.google.common.base.Functions.identity;
import static com.google.common.base.Throwables.propagateIfInstanceOf;
import static com.google.common.collect.Iterables.getOnlyElement;
import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.collect.Sets.intersection;
import static com.google.common.truth.Truth.assertThat;

  public static final Integer eight = 8;
  public static final Integer nine = 9;
  public static final Integer m1 = -1;
  public static final Integer m2 = -2;
  public static final Integer m3 = -3;
  public static final Integer m4 = -4;
  public static final Integer m5 = -5;
  public static final Integer m6 = -6;
  public static final Integer m10 = -10;

  /**

   * @return a cache loader that loads values by calling {@link Supplier#get}, irrespective of the
   *     key
   */
  public static <V> CacheLoader<Object, V> from(Supplier<V> supplier) {
    return new SupplierToCacheLoader<>(supplier);
  }

  private static final class FunctionToCacheLoader<K, V> extends CacheLoader<K, V>
      implements Serializable {
    private final Function<K, V> computingFunction;

    service.startAsync();
    assertEquals(State.RUNNING, service.state());
    assertTrue(service.isRunning());
    assertTrue(service.running);

    service.stopAsync();
    assertEquals(State.TERMINATED, service.state());
    assertFalse(service.isRunning());
    assertFalse(service.running);
    assertEquals(
        ImmutableList.of(State.STARTING, State.RUNNING, State.STOPPING, State.TERMINATED),
        listener.getStateHistory());

import static com.google.common.base.Functions.constant;
import static com.google.common.base.Functions.identity;
import static com.google.common.base.Throwables.propagateIfInstanceOf;
import static com.google.common.collect.Iterables.getOnlyElement;
import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.collect.Sets.intersection;
import static com.google.common.truth.Truth.assertThat;

    }
  }

  private static final Logger log = Logger.getLogger(AbstractFuture.class.getName());

  private State state;
  private V value;
  private @Nullable Future<? extends V> delegate;
  private @Nullable Throwable throwable;
  private boolean mayInterruptIfRunning;
  private List<Listener> listeners;

  protected AbstractFuture() {
    state = State.PENDING;
    listeners = new ArrayList<Listener>();

package com.google.common.util.concurrent;

import static com.google.common.base.StandardSystemProperty.JAVA_SPECIFICATION_VERSION;
import static com.google.common.base.StandardSystemProperty.OS_NAME;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import static com.google.common.util.concurrent.MoreExecutors.directExecutor;
import static org.junit.Assert.assertThrows;