public abstract class TypeParameter<T> extends TypeCapture<T> {

  final TypeVariable<?> typeVariable;

  protected TypeParameter() {
    Type type = capture();
    checkArgument(type instanceof TypeVariable, "%s should be a type variable.", type);
    this.typeVariable = (TypeVariable<?>) type;
  }

  @Override
  public final int hashCode() {
    return typeVariable.hashCode();
  }

  @Override

public abstract class TypeParameter<T> extends TypeCapture<T> {

  final TypeVariable<?> typeVariable;

  protected TypeParameter() {
    Type type = capture();
    checkArgument(type instanceof TypeVariable, "%s should be a type variable.", type);
    this.typeVariable = (TypeVariable<?>) type;
  }

  @Override
  public final int hashCode() {
    return typeVariable.hashCode();
  }

  @Override

      if (type == null || !visited.add(type)) {
        // null owner type, or already visited;
        continue;
      }
      boolean succeeded = false;
      try {
        if (type instanceof TypeVariable) {
          visitTypeVariable((TypeVariable<?>) type);
        } else if (type instanceof WildcardType) {
          visitWildcardType((WildcardType) type);
        } else if (type instanceof ParameterizedType) {

    final List<TypeParameterSignature> parameterSignatures;

    TypeSignature(TypeVariable<Method>[] parameters) {
      parameterSignatures =
          transform(
              asList(parameters),
              new Function<TypeVariable<?>, TypeParameterSignature>() {
                @Override
                public TypeParameterSignature apply(TypeVariable<?> from) {
                  return new TypeParameterSignature(from);

    final List<TypeParameterSignature> parameterSignatures;

    TypeSignature(TypeVariable<Method>[] parameters) {
      parameterSignatures =
          transform(
              asList(parameters),
              new Function<TypeVariable<?>, TypeParameterSignature>() {
                @Override
                public TypeParameterSignature apply(TypeVariable<?> from) {
                  return new TypeParameterSignature(from);