import java.util.concurrent.atomic.AtomicInteger;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * A multiset that supports concurrent modifications and that provides atomic versions of most
 * {@code Multiset} operations (exceptions where noted). Null elements are not supported.
 *
 * <p>See the Guava User Guide article on <a href=

  final Segment<K, V, E, S>[] newSegmentArray(int ssize) {
    return (Segment<K, V, E, S>[]) new Segment<?, ?, ?, ?>[ssize];
  }

  // Inner Classes

  /**
   * Segments are specialized versions of hash tables. This subclass inherits from ReentrantLock
   * opportunistically, just to simplify some locking and avoid separate construction.
   */
  @SuppressWarnings("serial") // This class is never serialized.

  final Segment<K, V>[] newSegmentArray(int ssize) {
    return (Segment<K, V>[]) new Segment<?, ?>[ssize];
  }

  // Inner Classes

  /**
   * Segments are specialized versions of hash tables. This subclass inherits from ReentrantLock
   * opportunistically, just to simplify some locking and avoid separate construction.
   */
  @SuppressWarnings("serial") // This class is never serialized.

  }

  @J2ktIncompatible // Kotlin Native's regex is based on Apache Harmony, like old Android
  @GwtIncompatible // java.util.regex.Pattern
  @AndroidIncompatible // Bug in older versions of Android we test against, since fixed.
  public void testPatternSplitLookBehind() {
    if (!CommonPattern.isPcreLike()) {
      return;
    }
    String toSplit = ":foo::barbaz:";

    <test.include>%regex[.*.class]</test.include>
    <truth.version>1.4.2</truth.version>
    <jsr305.version>3.0.2</jsr305.version>
    <checker.version>3.42.0</checker.version>
    <errorprone.version>2.26.1</errorprone.version>
    <j2objc.version>3.0.0</j2objc.version>
    <javac.version>9+181-r4173-1</javac.version>
    <!-- Empty for all JDKs but 9-12 -->

        .isEqualTo(new File("/c:/Documents ~ Settings, or not/11-12 12:05"));
  }

  // https://github.com/google/guava/issues/2152
  @AndroidIncompatible // works in newer Android versions but fails at the version we test with
  public void testToFile_AndroidIncompatible() throws Exception {
    assertThat(ClassPath.toFile(new URL("file:///c:\\Documents ~ Settings, or not\\11-12 12:05")))

    List<String> list = ImmutableList.of("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k");
    assertEquals(Lists.newArrayList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k"), list);
  }

  // Varargs versions

  public void testCreation_twelveElements() {
    List<String> list =
        ImmutableList.of("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l");
    assertEquals(

        .isEqualTo(new File("/c:/Documents ~ Settings, or not/11-12 12:05"));
  }

  // https://github.com/google/guava/issues/2152
  @AndroidIncompatible // works in newer Android versions but fails at the version we test with
  public void testToFile_AndroidIncompatible() throws Exception {
    assertThat(ClassPath.toFile(new URL("file:///c:\\Documents ~ Settings, or not\\11-12 12:05")))

    // All futures are now complete; outstanding inputs are cancelled
    assertTrue(future3.isCancelled());
    assertTrue(future3.wasInterrupted());
  }

  @AndroidIncompatible // runs out of memory under some versions of the emulator
  public void testCancellingAllDelegatesIsNotQuadratic() throws Exception {
    ImmutableList.Builder<SettableFuture<Long>> builder = ImmutableList.builder();
    for (int i = 0; i < 500_000; i++) {

 *   <li>{@code java.util.Optional} has the additional methods {@code ifPresent}, {@code filter},
 *       {@code flatMap}, and {@code orElseThrow}.
 *   <li>{@code java.util} offers the primitive-specialized versions {@code OptionalInt}, {@code
 *       OptionalLong} and {@code OptionalDouble}, the use of which is recommended; Guava does not
 *       have these.
 * </ul>
 *