}

  /**
   * Returns {@code element} cast to {@code E}, if it actually is a nonnull E. Otherwise, throws
   * either a NullPointerException or a ClassCastException as appropriate.
   */
  private void checkIsE(Object element) {
    checkNotNull(element);
    if (!isActuallyE(element)) {
      throw new ClassCastException("Expected an " + type + " but got " + element);
    }
  }

  @Override

      decodeException.initCause(e);
      throw decodeException;
    }
  }

  /**
   * Returns the unsigned {@code int} value represented by the given decimal string.
   *
   * <p><b>Java 8+ users:</b> use {@link Integer#parseUnsignedInt(String)} instead.
   *
   * @throws NumberFormatException if the string does not contain a valid unsigned {@code int} value

/**
 * Basic sanity tests for the entire package.
 *
 * @author Ben Yu
 */

@NullUnmarked
public class PackageSanityTests extends AbstractPackageSanityTests {

  public PackageSanityTests() throws Exception {
    DummySubscriber dummySubscriber = new DummySubscriber();
    setDefault(Subscriber.class, dummySubscriber.toSubscriber());
    setDefault(Method.class, DummySubscriber.subscriberMethod());

    MockCallback callback = new MockCallback(e);
    addCallback(f, callback, directExecutor());
  }

  public void testOnSuccessThrowsRuntimeException() throws Exception {
    RuntimeException exception = new RuntimeException();
    String result = "result";
    SettableFuture<String> future = SettableFuture.create();
    int[] successCalls = new int[1];

   *     no change will be made.
   * @return the count of the element before the operation; possibly zero
   * @throws IllegalArgumentException if {@code occurrences} is negative, or if this operation would
   *     result in more than {@link Integer#MAX_VALUE} occurrences of the element
   * @throws NullPointerException if {@code element} is null and this implementation does not permit

            throws ArtifactResolutionException, ArtifactNotFoundException {
        if (Artifact.RELEASE_VERSION.equals(artifact.getVersion())) {
            try {
                String version = resolveVersion(artifact, request);

                if (Artifact.RELEASE_VERSION.equals(version)) {

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.base.Supplier;
import com.google.common.collect.ForwardingSet;
import java.util.Set;

/**
 * A subclass of `ForwardingSet` that throws `IllegalStateException` on invocation of any method
 * (except `hashCode` and `equals`) if the provided `Supplier` returns false.
 */
final class InvalidatableSet<E> extends ForwardingSet<E> {

   */
  @Test
  public void testNulls() throws Exception {
    for (Class<?> classToTest : findClassesToTest(loadClassesInPackage(), NULL_TEST_METHOD_NAMES)) {
      if (classToTest.getSimpleName().equals("ReflectionFreeAssertThrows")) {
        /*
         * These classes handle null properly but throw IllegalArgumentException for the default

 *    libraries may customize this behavior.)
 *
 * A good way to signal a failure is with a synthetic HTTP response:
 *
 * ```kotlin
 *   @Throws(IOException::class)
 *   override fun intercept(chain: Interceptor.Chain): Response {
 *     if (myConfig.isInvalid()) {
 *       return Response.Builder()
 *           .request(chain.request())

  /** Guarded by this. */
  private WebSocket webSocket;

  public RtmSession(SlackApi slackApi) {
    this.slackApi = slackApi;
  }

  public void open(String accessToken) throws IOException {
    if (webSocket != null) throw new IllegalStateException();

    RtmStartResponse rtmStartResponse = slackApi.rtmStart(accessToken);
    webSocket = slackApi.rtm(rtmStartResponse.url, this);
  }