hashCodes.add(CrawlerStatus.INITIALIZING.hashCode());
        hashCodes.add(CrawlerStatus.RUNNING.hashCode());
        hashCodes.add(CrawlerStatus.DONE.hashCode());

        // While not guaranteed, typically enum hashCodes are different
        assertTrue(hashCodes.size() > 1);
    }

    /**
     * Test compareTo method
     */
    public void test_compareTo() {
        // Compare with self

          .append('>')
          .toString();
    }

    @Override
    public int hashCode() {
      return (ownerType == null ? 0 : ownerType.hashCode())
          ^ argumentsList.hashCode()
          ^ rawType.hashCode();
    }

    @Override
    public boolean equals(@Nullable Object other) {
      if (!(other instanceof ParameterizedType)) {

          .append('>')
          .toString();
    }

    @Override
    public int hashCode() {
      return (ownerType == null ? 0 : ownerType.hashCode())
          ^ argumentsList.hashCode()
          ^ rawType.hashCode();
    }

    @Override
    public boolean equals(@Nullable Object other) {
      if (!(other instanceof ParameterizedType)) {

   */
  static final class TypeVariableKey {
    private final TypeVariable<?> var;

    TypeVariableKey(TypeVariable<?> var) {
      this.var = checkNotNull(var);
    }

    @Override
    public int hashCode() {
      return Objects.hash(var.getGenericDeclaration(), var.getName());
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof TypeVariableKey) {

   */
  static final class TypeVariableKey {
    private final TypeVariable<?> var;

    TypeVariableKey(TypeVariable<?> var) {
      this.var = checkNotNull(var);
    }

    @Override
    public int hashCode() {
      return Objects.hash(var.getGenericDeclaration(), var.getName());
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof TypeVariableKey) {