for (int i = 0; i < n; i++) {
      hashCode = 31 * hashCode + get(i).hashCode();

      hashCode = ~~hashCode;
      // needed to deal with GWT integer overflow
    }
    return hashCode;
  }


            

Reported by PMD.

               * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkElementIndex;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkPositionIndexes;

            

Reported by PMD.

               * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkElementIndex;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkPositionIndexes;

            

Reported by PMD.

              @GwtCompatible(serializable = true, emulated = true)
@SuppressWarnings("serial") // we're overriding default serialization
@ElementTypesAreNonnullByDefault
public abstract class ImmutableList<E> extends ImmutableCollection<E>
    implements List<E>, RandomAccess {

  /**
   * Returns a {@code Collector} that accumulates the input elements into a new {@code
   * ImmutableList}, in encounter order.

            

Reported by PMD.

              @SuppressWarnings("serial") // we're overriding default serialization
@ElementTypesAreNonnullByDefault
public abstract class ImmutableList<E> extends ImmutableCollection<E>
    implements List<E>, RandomAccess {

  /**
   * Returns a {@code Collector} that accumulates the input elements into a new {@code
   * ImmutableList}, in encounter order.
   *

            

Reported by PMD.

                 * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting to any type is safe because the list will never hold any elements.
  @SuppressWarnings("unchecked")
  public static <E> ImmutableList<E> of() {
    return (ImmutableList<E>) EMPTY;
  }

  /**

            

Reported by PMD.

                 *
   * @throws NullPointerException if any element is null
   */
  public static <E> ImmutableList<E> of(
      E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9, E e10) {
    return construct(e1, e2, e3, e4, e5, e6, e7, e8, e9, e10);
  }

  /**

            

Reported by PMD.

                 *
   * @throws NullPointerException if any element is null
   */
  public static <E> ImmutableList<E> of(
      E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9, E e10, E e11) {
    return construct(e1, e2, e3, e4, e5, e6, e7, e8, e9, e10, e11);
  }

  // These go up to eleven. After that, you just get the varargs form, and

            

Reported by PMD.

                 * @since 3.0 (source-compatible since 2.0)
   */
  @SafeVarargs // For Eclipse. For internal javac we have disabled this pointless type of warning.
  public static <E> ImmutableList<E> of(
      E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9, E e10, E e11, E e12, E... others) {
    checkArgument(
        others.length <= Integer.MAX_VALUE - 12, "the total number of elements must fit in an int");
    Object[] array = new Object[12 + others.length];
    array[0] = e1;

            

Reported by PMD.

                  if (elements instanceof ImmutableCollection) {
      @SuppressWarnings("unchecked") // all supported methods are covariant
      ImmutableList<E> list = ((ImmutableCollection<E>) elements).asList();
      return list.isPartialView() ? ImmutableList.<E>asImmutableList(list.toArray()) : list;
    }
    return construct(elements.toArray());
  }

  /**

            

Reported by PMD.

                  @CanIgnoreReturnValue
    public Builder<K, V> putAll(K key, Iterable<? extends V> values) {
      if (key == null) {
        throw new NullPointerException("null key in entry: null=" + Iterables.toString(values));
      }
      Collection<V> valueCollection = builderMap.get(key);
      if (valueCollection != null) {
        for (V value : values) {
          checkEntryNotNull(key, value);

            

Reported by PMD.

              
    @GwtIncompatible // not present in emulated superclass
    @Override
    int copyIntoArray(@Nullable Object[] dst, int offset) {
      for (ImmutableCollection<V> valueCollection : multimap.map.values()) {
        offset = valueCollection.copyIntoArray(dst, offset);
      }
      return offset;
    }

            

Reported by PMD.

               * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.collect.CollectPreconditions.checkEntryNotNull;
import static com.google.common.collect.Maps.immutableEntry;
import static java.util.Objects.requireNonNull;

            

Reported by PMD.

               */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public abstract class ImmutableMultimap<K, V> extends BaseImmutableMultimap<K, V>
    implements Serializable {

  /**
   * Returns an empty multimap.
   *

            

Reported by PMD.

              @GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public abstract class ImmutableMultimap<K, V> extends BaseImmutableMultimap<K, V>
    implements Serializable {

  /**
   * Returns an empty multimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.

            

Reported by PMD.

                 * Returns an immutable multimap containing the given entries, in the "key-grouped" insertion
   * order described in the <a href="#iteration">class documentation</a>.
   */
  public static <K, V> ImmutableMultimap<K, V> of(
      K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5) {
    return ImmutableListMultimap.of(k1, v1, k2, v2, k3, v3, k4, v4, k5, v5);
  }

  // looking for of() with > 5 entries? Use the builder instead.

            

Reported by PMD.

                 * @since 2.0
   */
  @DoNotMock
  public static class Builder<K, V> {
    final Map<K, Collection<V>> builderMap;
    @CheckForNull Comparator<? super K> keyComparator;
    @CheckForNull Comparator<? super V> valueComparator;

    /**

            

Reported by PMD.

                 */
  @DoNotMock
  public static class Builder<K, V> {
    final Map<K, Collection<V>> builderMap;
    @CheckForNull Comparator<? super K> keyComparator;
    @CheckForNull Comparator<? super V> valueComparator;

    /**
     * Creates a new builder. The returned builder is equivalent to the builder generated by {@link

            

Reported by PMD.

                @DoNotMock
  public static class Builder<K, V> {
    final Map<K, Collection<V>> builderMap;
    @CheckForNull Comparator<? super K> keyComparator;
    @CheckForNull Comparator<? super V> valueComparator;

    /**
     * Creates a new builder. The returned builder is equivalent to the builder generated by {@link
     * ImmutableMultimap#builder}.

            

Reported by PMD.

                public static class Builder<K, V> {
    final Map<K, Collection<V>> builderMap;
    @CheckForNull Comparator<? super K> keyComparator;
    @CheckForNull Comparator<? super V> valueComparator;

    /**
     * Creates a new builder. The returned builder is equivalent to the builder generated by {@link
     * ImmutableMultimap#builder}.
     */

            

Reported by PMD.

              
  public void testGetSubtypeOf_impossibleWildcard() {
    TypeToken<List<? extends Number>> numberList = new TypeToken<List<? extends Number>>() {};
    abstract class StringList implements List<String> {}
    try {
      numberList.getSubtype(StringList.class);
      fail();
    } catch (IllegalArgumentException expected) {
    }

            

Reported by PMD.

                private static class Mall<T> {
    class Shop<ProductT> {}

    abstract class Retailer<ProductT> extends Shop<ProductT>
        implements Comparator<ProductT>, ConsumerFacing<ProductT> {}
  }

  private static class Outlet<T> extends Mall<T> {}


            

Reported by PMD.

               * limitations under the License.
 */

package com.google.common.reflect;

import static com.google.common.truth.Truth.assertThat;

import java.io.Serializable;
import java.util.Comparator;

            

Reported by PMD.

              @AndroidIncompatible // lots of failures, possibly some related to bad equals() implementations?
public class TypeTokenSubtypeTest extends TestCase {

  public void testOwnerTypeSubtypes() throws Exception {
    new OwnerTypeSubtypingTests().testAllDeclarations();
  }

  public void testWildcardSubtypes() throws Exception {
    new WildcardSubtypingTests().testAllDeclarations();

            

Reported by PMD.

              @AndroidIncompatible // lots of failures, possibly some related to bad equals() implementations?
public class TypeTokenSubtypeTest extends TestCase {

  public void testOwnerTypeSubtypes() throws Exception {
    new OwnerTypeSubtypingTests().testAllDeclarations();
  }

  public void testWildcardSubtypes() throws Exception {
    new WildcardSubtypingTests().testAllDeclarations();

            

Reported by PMD.

                  new OwnerTypeSubtypingTests().testAllDeclarations();
  }

  public void testWildcardSubtypes() throws Exception {
    new WildcardSubtypingTests().testAllDeclarations();
  }

  /**
   * This test reproduces the bug in canonicalizeWildcardType() when the type variable is

            

Reported by PMD.

                  new OwnerTypeSubtypingTests().testAllDeclarations();
  }

  public void testWildcardSubtypes() throws Exception {
    new WildcardSubtypingTests().testAllDeclarations();
  }

  /**
   * This test reproduces the bug in canonicalizeWildcardType() when the type variable is

            

Reported by PMD.

                 * This test reproduces the bug in canonicalizeWildcardType() when the type variable is
   * recursively bounded.
   */
  public void testRecursiveWildcardSubtypeBug() throws Exception {
    try {
      new RecursiveTypeBoundBugExample<>().testAllDeclarations();
      fail();
    } catch (Exception e) {
      assertThat(e).hasCauseThat().isInstanceOf(AssertionError.class);

            

Reported by PMD.

                public void testRecursiveWildcardSubtypeBug() throws Exception {
    try {
      new RecursiveTypeBoundBugExample<>().testAllDeclarations();
      fail();
    } catch (Exception e) {
      assertThat(e).hasCauseThat().isInstanceOf(AssertionError.class);
    }
  }


            

Reported by PMD.

                  try {
      new RecursiveTypeBoundBugExample<>().testAllDeclarations();
      fail();
    } catch (Exception e) {
      assertThat(e).hasCauseThat().isInstanceOf(AssertionError.class);
    }
  }

  public void testSubtypeOfInnerClass_nonStaticAnonymousClass() {

            

Reported by PMD.

               */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class CacheBuilder<K, V> {
  private static final int DEFAULT_INITIAL_CAPACITY = 16;
  private static final int DEFAULT_CONCURRENCY_LEVEL = 4;

  @SuppressWarnings("GoodTime") // should be a java.time.Duration
  private static final int DEFAULT_EXPIRATION_NANOS = 0;

            

Reported by PMD.

               */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class CacheBuilder<K, V> {
  private static final int DEFAULT_INITIAL_CAPACITY = 16;
  private static final int DEFAULT_CONCURRENCY_LEVEL = 4;

  @SuppressWarnings("GoodTime") // should be a java.time.Duration
  private static final int DEFAULT_EXPIRATION_NANOS = 0;

            

Reported by PMD.

               */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class CacheBuilder<K, V> {
  private static final int DEFAULT_INITIAL_CAPACITY = 16;
  private static final int DEFAULT_CONCURRENCY_LEVEL = 4;

  @SuppressWarnings("GoodTime") // should be a java.time.Duration
  private static final int DEFAULT_EXPIRATION_NANOS = 0;

            

Reported by PMD.

               */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class CacheBuilder<K, V> {
  private static final int DEFAULT_INITIAL_CAPACITY = 16;
  private static final int DEFAULT_CONCURRENCY_LEVEL = 4;

  @SuppressWarnings("GoodTime") // should be a java.time.Duration
  private static final int DEFAULT_EXPIRATION_NANOS = 0;

            

Reported by PMD.

               */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class CacheBuilder<K, V> {
  private static final int DEFAULT_INITIAL_CAPACITY = 16;
  private static final int DEFAULT_CONCURRENCY_LEVEL = 4;

  @SuppressWarnings("GoodTime") // should be a java.time.Duration
  private static final int DEFAULT_EXPIRATION_NANOS = 0;

            

Reported by PMD.

                private static final int DEFAULT_INITIAL_CAPACITY = 16;
  private static final int DEFAULT_CONCURRENCY_LEVEL = 4;

  @SuppressWarnings("GoodTime") // should be a java.time.Duration
  private static final int DEFAULT_EXPIRATION_NANOS = 0;

  @SuppressWarnings("GoodTime") // should be a java.time.Duration
  private static final int DEFAULT_REFRESH_NANOS = 0;


            

Reported by PMD.

              
  static final int UNSET_INT = -1;

  boolean strictParsing = true;

  int initialCapacity = UNSET_INT;
  int concurrencyLevel = UNSET_INT;
  long maximumSize = UNSET_INT;
  long maximumWeight = UNSET_INT;

            

Reported by PMD.

              
  boolean strictParsing = true;

  int initialCapacity = UNSET_INT;
  int concurrencyLevel = UNSET_INT;
  long maximumSize = UNSET_INT;
  long maximumWeight = UNSET_INT;
  @Nullable Weigher<? super K, ? super V> weigher;


            

Reported by PMD.

              
  boolean strictParsing = true;

  int initialCapacity = UNSET_INT;
  int concurrencyLevel = UNSET_INT;
  long maximumSize = UNSET_INT;
  long maximumWeight = UNSET_INT;
  @Nullable Weigher<? super K, ? super V> weigher;


            

Reported by PMD.

                boolean strictParsing = true;

  int initialCapacity = UNSET_INT;
  int concurrencyLevel = UNSET_INT;
  long maximumSize = UNSET_INT;
  long maximumWeight = UNSET_INT;
  @Nullable Weigher<? super K, ? super V> weigher;

  @Nullable Strength keyStrength;

            

Reported by PMD.

              
        Collections.swap(list, j - c[j] + s, j - q + s);
        c[j] = q;
        break;
      }
    }

    void switchDirection() {
      o[j] = -o[j];

            

Reported by PMD.

                  checkNotNull(collection);
    try {
      return collection.contains(object);
    } catch (ClassCastException | NullPointerException e) {
      return false;
    }
  }

  /**

            

Reported by PMD.

                  checkNotNull(collection);
    try {
      return collection.contains(object);
    } catch (ClassCastException | NullPointerException e) {
      return false;
    }
  }

  /**

            

Reported by PMD.

                  checkNotNull(collection);
    try {
      return collection.remove(object);
    } catch (ClassCastException | NullPointerException e) {
      return false;
    }
  }

  static class FilteredCollection<E extends @Nullable Object> extends AbstractCollection<E> {

            

Reported by PMD.

                  checkNotNull(collection);
    try {
      return collection.remove(object);
    } catch (ClassCastException | NullPointerException e) {
      return false;
    }
  }

  static class FilteredCollection<E extends @Nullable Object> extends AbstractCollection<E> {

            

Reported by PMD.

                  }
  }

  static class FilteredCollection<E extends @Nullable Object> extends AbstractCollection<E> {
    final Collection<E> unfiltered;
    final Predicate<? super E> predicate;

    FilteredCollection(Collection<E> unfiltered, Predicate<? super E> predicate) {
      this.unfiltered = unfiltered;

            

Reported by PMD.

                }

  static class FilteredCollection<E extends @Nullable Object> extends AbstractCollection<E> {
    final Collection<E> unfiltered;
    final Predicate<? super E> predicate;

    FilteredCollection(Collection<E> unfiltered, Predicate<? super E> predicate) {
      this.unfiltered = unfiltered;
      this.predicate = predicate;

            

Reported by PMD.

              
  static class FilteredCollection<E extends @Nullable Object> extends AbstractCollection<E> {
    final Collection<E> unfiltered;
    final Predicate<? super E> predicate;

    FilteredCollection(Collection<E> unfiltered, Predicate<? super E> predicate) {
      this.unfiltered = unfiltered;
      this.predicate = predicate;
    }

            

Reported by PMD.

                  @Override
    public @Nullable Object[] toArray() {
      // creating an ArrayList so filtering happens once
      return Lists.newArrayList(iterator()).toArray();
    }

    @Override
    @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
    public <T extends @Nullable Object> T[] toArray(T[] array) {

            

Reported by PMD.

                  @Override
    @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
    public <T extends @Nullable Object> T[] toArray(T[] array) {
      return Lists.newArrayList(iterator()).toArray(array);
    }
  }

  /**
   * Returns a collection that applies {@code function} to each element of {@code fromCollection}.

            

Reported by PMD.

               * the License.
 */

package com.google.common.net;

import static com.google.common.base.CharMatcher.ascii;
import static com.google.common.base.CharMatcher.javaIsoControl;
import static com.google.common.base.Charsets.UTF_8;
import static com.google.common.base.Preconditions.checkArgument;

            

Reported by PMD.

              @GwtCompatible
@Immutable
@ElementTypesAreNonnullByDefault
public final class MediaType {
  private static final String CHARSET_ATTRIBUTE = "charset";
  private static final ImmutableListMultimap<String, String> UTF_8_CONSTANT_PARAMETERS =
      ImmutableListMultimap.of(CHARSET_ATTRIBUTE, Ascii.toLowerCase(UTF_8.name()));

  /** Matcher for type, subtype and attributes. */

            

Reported by PMD.

              @GwtCompatible
@Immutable
@ElementTypesAreNonnullByDefault
public final class MediaType {
  private static final String CHARSET_ATTRIBUTE = "charset";
  private static final ImmutableListMultimap<String, String> UTF_8_CONSTANT_PARAMETERS =
      ImmutableListMultimap.of(CHARSET_ATTRIBUTE, Ascii.toLowerCase(UTF_8.name()));

  /** Matcher for type, subtype and attributes. */

            

Reported by PMD.

                 */
  public static final MediaType FONT_WOFF2 = createConstant(FONT_TYPE, "woff2");

  private final String type;
  private final String subtype;
  private final ImmutableListMultimap<String, String> parameters;

  @LazyInit @CheckForNull private String toString;


            

Reported by PMD.

                 */
  public static final MediaType FONT_WOFF2 = createConstant(FONT_TYPE, "woff2");

  private final String type;
  private final String subtype;
  private final ImmutableListMultimap<String, String> parameters;

  @LazyInit @CheckForNull private String toString;


            

Reported by PMD.

                public static final MediaType FONT_WOFF2 = createConstant(FONT_TYPE, "woff2");

  private final String type;
  private final String subtype;
  private final ImmutableListMultimap<String, String> parameters;

  @LazyInit @CheckForNull private String toString;

  @LazyInit private int hashCode;

            

Reported by PMD.

                public static final MediaType FONT_WOFF2 = createConstant(FONT_TYPE, "woff2");

  private final String type;
  private final String subtype;
  private final ImmutableListMultimap<String, String> parameters;

  @LazyInit @CheckForNull private String toString;

  @LazyInit private int hashCode;

            

Reported by PMD.

              
  private final String type;
  private final String subtype;
  private final ImmutableListMultimap<String, String> parameters;

  @LazyInit @CheckForNull private String toString;

  @LazyInit private int hashCode;


            

Reported by PMD.

              
  private final String type;
  private final String subtype;
  private final ImmutableListMultimap<String, String> parameters;

  @LazyInit @CheckForNull private String toString;

  @LazyInit private int hashCode;


            

Reported by PMD.

                private final String subtype;
  private final ImmutableListMultimap<String, String> parameters;

  @LazyInit @CheckForNull private String toString;

  @LazyInit private int hashCode;

  @LazyInit @CheckForNull private Optional<Charset> parsedCharset;


            

Reported by PMD.

               */
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public abstract class AbstractScheduledService implements Service {
  private static final Logger logger = Logger.getLogger(AbstractScheduledService.class.getName());

  /**
   * A scheduler defines the policy for how the {@link AbstractScheduledService} should run its
   * task.

            

Reported by PMD.

                }

  /* use AbstractService for state management */
  private final AbstractService delegate = new ServiceDelegate();

  @WeakOuter
  private final class ServiceDelegate extends AbstractService {

    // A handle to the running task so that we can stop it when a shutdown has been requested.

            

Reported by PMD.

              
    // A handle to the running task so that we can stop it when a shutdown has been requested.
    // These two fields are volatile because their values will be accessed from multiple threads.
    @CheckForNull private volatile Cancellable runningTask;
    @CheckForNull private volatile ScheduledExecutorService executorService;

    // This lock protects the task so we can ensure that none of the template methods (startUp,
    // shutDown or runOneIteration) run concurrently with one another.
    // TODO(lukes): why don't we use ListenableFuture to sequence things? Then we could drop the

            

Reported by PMD.

                  // A handle to the running task so that we can stop it when a shutdown has been requested.
    // These two fields are volatile because their values will be accessed from multiple threads.
    @CheckForNull private volatile Cancellable runningTask;
    @CheckForNull private volatile ScheduledExecutorService executorService;

    // This lock protects the task so we can ensure that none of the template methods (startUp,
    // shutDown or runOneIteration) run concurrently with one another.
    // TODO(lukes): why don't we use ListenableFuture to sequence things? Then we could drop the
    // lock.

            

Reported by PMD.

                  // shutDown or runOneIteration) run concurrently with one another.
    // TODO(lukes): why don't we use ListenableFuture to sequence things? Then we could drop the
    // lock.
    private final ReentrantLock lock = new ReentrantLock();

    @WeakOuter
    class Task implements Runnable {
      @Override
      public void run() {

            

Reported by PMD.

                         * requireNonNull is safe because Task isn't run (or at least it doesn't succeed in taking
           * the lock) until after it's scheduled and the runningTask field is set.
           */
          if (requireNonNull(runningTask).isCancelled()) {
            // task may have been cancelled while blocked on the lock.
            return;
          }
          AbstractScheduledService.this.runOneIteration();
        } catch (Throwable t) {

            

Reported by PMD.

                          // task may have been cancelled while blocked on the lock.
            return;
          }
          AbstractScheduledService.this.runOneIteration();
        } catch (Throwable t) {
          try {
            shutDown();
          } catch (Exception ignored) {
            logger.log(

            

Reported by PMD.

                          // task may have been cancelled while blocked on the lock.
            return;
          }
          AbstractScheduledService.this.runOneIteration();
        } catch (Throwable t) {
          try {
            shutDown();
          } catch (Exception ignored) {
            logger.log(

            

Reported by PMD.

                          return;
          }
          AbstractScheduledService.this.runOneIteration();
        } catch (Throwable t) {
          try {
            shutDown();
          } catch (Exception ignored) {
            logger.log(
                Level.WARNING,

            

Reported by PMD.

                      } catch (Throwable t) {
          try {
            shutDown();
          } catch (Exception ignored) {
            logger.log(
                Level.WARNING,
                "Error while attempting to shut down the service after failure.",
                ignored);
          }

            

Reported by PMD.

               * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.truth.Truth.assertThat;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;

            

Reported by PMD.

               * @author Nick Kralevich
 */
@GwtCompatible(emulated = true)
public class ImmutableSetTest extends AbstractImmutableSetTest {

  @GwtIncompatible // suite
  public static Test suite() {
    TestSuite suite = new TestSuite();


            

Reported by PMD.

              @GwtCompatible(emulated = true)
public class ImmutableSetTest extends AbstractImmutableSetTest {

  @GwtIncompatible // suite
  public static Test suite() {
    TestSuite suite = new TestSuite();

    suite.addTest(
        SetTestSuiteBuilder.using(new ImmutableSetCopyOfGenerator())

            

Reported by PMD.

              public class ImmutableSetTest extends AbstractImmutableSetTest {

  @GwtIncompatible // suite
  public static Test suite() {
    TestSuite suite = new TestSuite();

    suite.addTest(
        SetTestSuiteBuilder.using(new ImmutableSetCopyOfGenerator())
            .named(ImmutableSetTest.class.getName())

            

Reported by PMD.

                  return ImmutableSet.copyOf(elements);
  }

  public void testCreation_allDuplicates() {
    ImmutableSet<String> set = ImmutableSet.copyOf(Lists.newArrayList("a", "a"));
    assertTrue(set instanceof SingletonImmutableSet);
    assertEquals(Lists.newArrayList("a"), Lists.newArrayList(set));
  }


            

Reported by PMD.

                  return ImmutableSet.copyOf(elements);
  }

  public void testCreation_allDuplicates() {
    ImmutableSet<String> set = ImmutableSet.copyOf(Lists.newArrayList("a", "a"));
    assertTrue(set instanceof SingletonImmutableSet);
    assertEquals(Lists.newArrayList("a"), Lists.newArrayList(set));
  }


            

Reported by PMD.

                  assertEquals(Lists.newArrayList("a"), Lists.newArrayList(set));
  }

  public void testCreation_oneDuplicate() {
    // now we'll get the varargs overload
    ImmutableSet<String> set =
        ImmutableSet.of("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "a");
    assertEquals(
        Lists.newArrayList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m"),

            

Reported by PMD.

                      Lists.newArrayList(set));
  }

  public void testCreation_manyDuplicates() {
    // now we'll get the varargs overload
    ImmutableSet<String> set =
        ImmutableSet.of("a", "b", "c", "c", "c", "c", "b", "b", "a", "a", "c", "c", "c", "a");
    assertThat(set).containsExactly("a", "b", "c").inOrder();
  }

            

Reported by PMD.

                  // now we'll get the varargs overload
    ImmutableSet<String> set =
        ImmutableSet.of("a", "b", "c", "c", "c", "c", "b", "b", "a", "a", "c", "c", "c", "a");
    assertThat(set).containsExactly("a", "b", "c").inOrder();
  }

  public void testCreation_arrayOfArray() {
    String[] array = new String[] {"a"};
    Set<String[]> set = ImmutableSet.<String[]>of(array);

            

Reported by PMD.

                  // now we'll get the varargs overload
    ImmutableSet<String> set =
        ImmutableSet.of("a", "b", "c", "c", "c", "c", "b", "b", "a", "a", "c", "c", "c", "a");
    assertThat(set).containsExactly("a", "b", "c").inOrder();
  }

  public void testCreation_arrayOfArray() {
    String[] array = new String[] {"a"};
    Set<String[]> set = ImmutableSet.<String[]>of(array);

            

Reported by PMD.

               */
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
public class ConcurrentMapReplaceEntryTester<K, V> extends AbstractMapTester<K, V> {
  @Override
  protected ConcurrentMap<K, V> getMap() {
    return (ConcurrentMap<K, V>) super.getMap();
  }


            

Reported by PMD.

                  return (ConcurrentMap<K, V>) super.getMap();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedPresent() {
    assertTrue(getMap().replace(k0(), v0(), v3()));
    expectReplacement(entry(k0(), v3()));
  }

            

Reported by PMD.

                @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedPresent() {
    assertTrue(getMap().replace(k0(), v0(), v3()));
    expectReplacement(entry(k0(), v3()));
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)

            

Reported by PMD.

                  expectReplacement(entry(k0(), v3()));
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedPresentUnchanged() {
    assertTrue(getMap().replace(k0(), v0(), v0()));
    expectUnchanged();
  }

            

Reported by PMD.

                @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedPresentUnchanged() {
    assertTrue(getMap().replace(k0(), v0(), v0()));
    expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)

            

Reported by PMD.

                  expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedWrongValue() {
    assertFalse(getMap().replace(k0(), v3(), v4()));
    expectUnchanged();
  }

            

Reported by PMD.

                @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedWrongValue() {
    assertFalse(getMap().replace(k0(), v3(), v4()));
    expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testReplaceEntry_supportedAbsentKey() {

            

Reported by PMD.

                  expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testReplaceEntry_supportedAbsentKey() {
    assertFalse(getMap().replace(k3(), v3(), v4()));
    expectUnchanged();
  }


            

Reported by PMD.

              
  @MapFeature.Require(SUPPORTS_PUT)
  public void testReplaceEntry_supportedAbsentKey() {
    assertFalse(getMap().replace(k3(), v3(), v4()));
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
  @CollectionSize.Require(absent = ZERO)

            

Reported by PMD.

                  expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_presentNullValueUnsupported() {
    try {
      getMap().replace(k0(), v0(), null);
      fail("Expected NullPointerException");

            

Reported by PMD.

               */
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
public class MapReplaceEntryTester<K, V> extends AbstractMapTester<K, V> {

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedPresent() {
    try {

            

Reported by PMD.

              @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
public class MapReplaceEntryTester<K, V> extends AbstractMapTester<K, V> {

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedPresent() {
    try {
      assertTrue(getMap().replace(k0(), v0(), v3()));
      expectReplacement(entry(k0(), v3()));

            

Reported by PMD.

                @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedPresent() {
    try {
      assertTrue(getMap().replace(k0(), v0(), v3()));
      expectReplacement(entry(k0(), v3()));
    } catch (ClassCastException tolerated) { // for ClassToInstanceMap
      expectUnchanged();
    }
  }

            

Reported by PMD.

                  }
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedPresentUnchanged() {
    assertTrue(getMap().replace(k0(), v0(), v0()));
    expectUnchanged();
  }

            

Reported by PMD.

                @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedPresentUnchanged() {
    assertTrue(getMap().replace(k0(), v0(), v0()));
    expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)

            

Reported by PMD.

                  expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedWrongValue() {
    assertFalse(getMap().replace(k0(), v3(), v4()));
    expectUnchanged();
  }

            

Reported by PMD.

                @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_supportedWrongValue() {
    assertFalse(getMap().replace(k0(), v3(), v4()));
    expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testReplaceEntry_supportedAbsentKey() {

            

Reported by PMD.

                  expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testReplaceEntry_supportedAbsentKey() {
    assertFalse(getMap().replace(k3(), v3(), v4()));
    expectUnchanged();
  }


            

Reported by PMD.

              
  @MapFeature.Require(SUPPORTS_PUT)
  public void testReplaceEntry_supportedAbsentKey() {
    assertFalse(getMap().replace(k3(), v3(), v4()));
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
  @CollectionSize.Require(absent = ZERO)

            

Reported by PMD.

                  expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
  @CollectionSize.Require(absent = ZERO)
  public void testReplaceEntry_presentNullValueUnsupported() {
    try {
      getMap().replace(k0(), v0(), null);
      fail("Expected NullPointerException");

            

Reported by PMD.