assertEquals(message, exception.getMessage());
        Throwable cause1 = exception.getCause();
        assertTrue(cause1 instanceof RuntimeException);

        Throwable cause2 = cause1.getCause();
        assertTrue(cause2 instanceof AssertionError);

        Throwable cause3 = cause2.getCause();
        assertTrue(cause3 instanceof IllegalStateException);
    }

    abstract void realRun() throws Throwable;

    @Override
    public final void run() {
      try {
        realRun();
      } catch (Throwable t) {
        threadUnexpectedException(t);
      }
    }
  }

  abstract class CheckedCallable<T> implements Callable<T> {
    abstract T realCall() throws Throwable;

    @Override
    public final T call() {
      try {

@GwtCompatible
final class Platform {
  static boolean isInstanceOfThrowableClass(
      @Nullable Throwable t, Class<? extends Throwable> expectedClass) {
    return expectedClass.isInstance(t);
  }

  static void restoreInterruptIfIsInterruptedException(Throwable t) {
    checkNotNull(t); // to satisfy NullPointerTester
    if (t instanceof InterruptedException) {
      currentThread().interrupt();

            List<String> path,
            Throwable t) {
        super(message, groupId, artifactId, version, type, classifier, remoteRepositories, path, t);
    }

    public ArtifactResolutionException(
            String message,
            String groupId,
            String artifactId,
            String version,
            String type,
            String classifier,
            Throwable t) {

   * returns the expected data.
   *
   * @throws Throwable if the listener isn't called or if it resulted in a throwable or if the
   *     result doesn't match the expected value.
   */
  public void assertSuccess(Object expectedData) throws Throwable {
    // Verify that the listener executed in a reasonable amount of time.
    Assert.assertTrue(countDownLatch.await(1L, SECONDS));

    abstract void realRun() throws Throwable;

    @Override
    public final void run() {
      try {
        realRun();
      } catch (Throwable t) {
        threadUnexpectedException(t);
      }
    }
  }

  abstract class CheckedCallable<T> implements Callable<T> {
    abstract T realCall() throws Throwable;

    @Override
    public final T call() {
      try {

abstract class InterruptibleTask<T extends @Nullable Object> implements Runnable {

  @Override
  public void run() {
    T result = null;
    Throwable error = null;
    if (isDone()) {
      return;
    }
    try {
      result = runInterruptibly();
    } catch (Throwable t) {
      error = t;
    }
    if (error == null) {
      // The cast is safe because of the `run` and `error` checks.

        this(message, null, null);
    }

    public MetadataRetrievalException(Throwable cause) {
        this(null, cause, null);
    }

    public MetadataRetrievalException(String message, Throwable cause) {
        this(message, cause, null);
    }

    public MetadataRetrievalException(String message, Throwable cause, ArtifactMetadata artifact) {
        super(message, cause);

        this.artifact = artifact;

 * <ul>
 *   <li>{@link #SuggestSettingsException(String)}: Constructs a new exception with the specified detail message.</li>
 *   <li>{@link #SuggestSettingsException(Throwable)}: Constructs a new exception with the specified cause.</li>
 *   <li>{@link #SuggestSettingsException(String, Throwable)}: Constructs a new exception with the specified detail message and cause.</li>
 * </ul>
 *
 * @see RuntimeException
 */

        return error;
    }

    /**
     * Returns the root cause of this exception
     *
     * @return the root cause throwable
     */
    public Throwable getRootCause() {
        return rootCause;
    }

    @Override
    public String toString() {
        if (rootCause != null) {
            final StringWriter sw = new StringWriter();
            final PrintWriter pw = new PrintWriter(sw);