assertFalse(invokable.isAbstract());
    assertFalse(invokable.isStatic());
    assertTrue(invokable.isAnnotationPresent(Tested.class));
  }

  public void testAbstractMethod() throws Exception {
    Invokable<?, Object> invokable = A.method("abstractMethod");
    assertTrue(invokable.isPackagePrivate());
    assertTrue(invokable.isAbstract());
    assertFalse(invokable.isFinal());

    assertFalse(invokable.isAbstract());
    assertFalse(invokable.isStatic());
    assertTrue(invokable.isAnnotationPresent(Tested.class));
  }

  public void testAbstractMethod() throws Exception {
    Invokable<?, Object> invokable = A.method("abstractMethod");
    assertTrue(invokable.isPackagePrivate());
    assertTrue(invokable.isAbstract());
    assertFalse(invokable.isFinal());

   */
  public final boolean isFinal() {
    return Modifier.isFinal(getModifiers());
  }

  /** Returns true if the method is abstract. */
  public final boolean isAbstract() {
    return Modifier.isAbstract(getModifiers());
  }

  /** Returns true if the element is native. */
  public final boolean isNative() {
    return Modifier.isNative(getModifiers());
  }

     *
     * @param method
     *            メソッド。{@literal null}であってはいけません
     * @return <code>abstract</code>かどうか
     */
    public static boolean isAbstract(final Method method) {
        return Modifier.isAbstract(method.getModifiers());
    }

    /**
     * <code>public</code>かどうかを返します。
     *
     * @param method
     *            メソッド。{@literal null}であってはいけません

  void doTestNulls(Class<?> cls, Visibility visibility)
      throws ParameterNotInstantiableException, IllegalAccessException, InvocationTargetException,
          FactoryMethodReturnsNullException {
    if (!Modifier.isAbstract(cls.getModifiers())) {
      nullPointerTester.testConstructors(cls, visibility);
    }
    nullPointerTester.testStaticMethods(cls, visibility);
    if (hasInstanceMethodToTestNulls(cls, visibility)) {

      return createEmptyArray(type);
    }
    T jvmDefault = Defaults.defaultValue(Primitives.unwrap(type));
    if (jvmDefault != null) {
      return jvmDefault;
    }
    if (Modifier.isAbstract(type.getModifiers()) || !Modifier.isPublic(type.getModifiers())) {
      return arbitraryConstantInstanceOrNull(type);
    }
    final Constructor<T> constructor;
    try {
      constructor = type.getConstructor();

      return createEmptyArray(type);
    }
    T jvmDefault = Defaults.defaultValue(Primitives.unwrap(type));
    if (jvmDefault != null) {
      return jvmDefault;
    }
    if (Modifier.isAbstract(type.getModifiers()) || !Modifier.isPublic(type.getModifiers())) {
      return arbitraryConstantInstanceOrNull(type);
    }
    final Constructor<T> constructor;
    try {
      constructor = type.getConstructor();