* only way to get a TypeVariable instance for the resolved types is to create our own. The
         * created TypeVariable will not interoperate with any JDK TypeVariable. But this is OK: We
         * don't _want_ our new TypeVariable to be equal to the JDK TypeVariable because it has
         * _different bounds_ than the JDK TypeVariable. And it wouldn't make sense for our new

  }

  private static <D extends GenericDeclaration> TypeVariable<D> newTypeVariableImpl(
      D genericDeclaration, String name, Type[] bounds) {
    TypeVariableImpl<D> typeVariableImpl = new TypeVariableImpl<>(genericDeclaration, name, bounds);
    @SuppressWarnings("unchecked")
    TypeVariable<D> typeVariable =
        Reflection.newProxy(
            TypeVariable.class, new TypeVariableInvocationHandler(typeVariableImpl));

    TypeVariable<?> noBoundJvmType = WithTypeVariable.getTypeVariable("withoutBound");
    TypeVariable<?> objectBoundJvmType = WithTypeVariable.getTypeVariable("withObjectBound");
    TypeVariable<?> upperBoundJvmType = WithTypeVariable.getTypeVariable("withUpperBound");
    TypeVariable<?> noBound = withBounds(noBoundJvmType);
    TypeVariable<?> objectBound = withBounds(objectBoundJvmType, Object.class);

     * @throws Exception
     */
    public void testGetTypeVariableMap() throws Exception {
        final Map<TypeVariable<?>, Type> map = GenericsUtil.getTypeVariableMap(Hoge.class);
        assertThat(map.size(), is(4));
        final Iterator<Entry<TypeVariable<?>, Type>> it = map.entrySet().iterator();
        Entry<TypeVariable<?>, Type> entry = it.next();
        assertThat(entry.getKey().getName(), is("T1"));

    TypeVariable<?> typeVariable =
        (TypeVariable<?>) new WithGenericBound<String>() {}.getTargetType("withTypeVariable");
    assertEquals(String.class, typeVariable.getBounds()[0]);
  }

  public void testWithRecursiveBoundInTypeVariable() throws Exception {
    TypeVariable<?> typeVariable =

    TypeVariable<?> typeVariable =
        (TypeVariable<?>) new WithGenericBound<String>() {}.getTargetType("withTypeVariable");
    assertEquals(String.class, typeVariable.getBounds()[0]);
  }

  public void testWithRecursiveBoundInTypeVariable() throws Exception {
    TypeVariable<?> typeVariable =

     */
    public static Map<TypeVariable<?>, Type> getTypeVariableMap(final Class<?> clazz) {
        assertArgumentNotNull("clazz", clazz);

        final Map<TypeVariable<?>, Type> map = CollectionsUtil.newLinkedHashMap();

        final TypeVariable<?>[] typeParameters = clazz.getTypeParameters();
        for (final TypeVariable<?> typeParameter : typeParameters) {

     */
    @Override
    public final TypeVariable<?>[] getTypeParameters() {
      TypeVariable<?>[] declaredByClass = getDeclaringClass().getTypeParameters();
      TypeVariable<?>[] declaredByConstructor = constructor.getTypeParameters();
      TypeVariable<?>[] result =
          new TypeVariable<?>[declaredByClass.length + declaredByConstructor.length];

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.lang.reflect.TypeVariable;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.codelibs.core.beans.BeanDesc;
import org.codelibs.core.beans.ConstructorDesc;

            || isNullableTypeVariable(param.getAnnotatedType().getType());
      }

      boolean isNullableTypeVariable(Type type) {
        if (!(type instanceof TypeVariable)) {
          return false;
        }
        TypeVariable<?> typeVar = (TypeVariable<?>) type;
        for (AnnotatedType bound : typeVar.getAnnotatedBounds()) {
          // Until Java 15, the isNullableTypeVariable case here won't help: