assertTrue(delegate.isPrivate());
    assertFalse(delegate.isOverridable());
    assertFalse(delegate.isVarArgs());
  }

  public void testPrivateFinalInstanceMethod_isOverridable() throws Exception {
    Invokable<?, ?> delegate = Prepender.method("privateFinalMethod");
    assertTrue(delegate.isPrivate());
    assertTrue(delegate.isFinal());

    List<Invokable<?, ? extends T>> factories = Lists.newArrayList();
    for (Method method : type.getRawType().getDeclaredMethods()) {
      Invokable<?, ?> invokable = type.method(method);
      if (!invokable.isPrivate()
          && !invokable.isSynthetic()
          && invokable.isStatic()
          && type.isSupertypeOf(invokable.getReturnType())) {
        @SuppressWarnings("unchecked") // guarded by isAssignableFrom()

  }

  /** Returns true if the element is package-private. */
  public final boolean isPackagePrivate() {
    return !isPrivate() && !isPublic() && !isProtected();
  }

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

  /** Returns true if the element is static. */
  public final boolean isStatic() {

    assertTrue(delegate.isPrivate());
    assertFalse(delegate.isOverridable());
    assertFalse(delegate.isVarArgs());
  }

  public void testPrivateFinalInstanceMethod_isOverridable() throws Exception {
    Invokable<?, ?> delegate = Prepender.method("privateFinalMethod");
    assertTrue(delegate.isPrivate());
    assertTrue(delegate.isFinal());

  }

  /** Visibility of any method or constructor. */
  public enum Visibility {
    PACKAGE {
      @Override
      boolean isVisible(int modifiers) {
        return !Modifier.isPrivate(modifiers);
      }
    },

    PROTECTED {
      @Override
      boolean isVisible(int modifiers) {
        return Modifier.isPublic(modifiers) || Modifier.isProtected(modifiers);
      }
    },

    List<Invokable<?, ? extends T>> factories = Lists.newArrayList();
    for (Method method : type.getRawType().getDeclaredMethods()) {
      Invokable<?, ?> invokable = type.method(method);
      if (!invokable.isPrivate()
          && !invokable.isSynthetic()
          && invokable.isStatic()
          && type.isSupertypeOf(invokable.getReturnType())) {
        @SuppressWarnings("unchecked") // guarded by isAssignableFrom()

  }

  /** Visibility of any method or constructor. */
  public enum Visibility {
    PACKAGE {
      @Override
      boolean isVisible(int modifiers) {
        return !Modifier.isPrivate(modifiers);
      }
    },

    PROTECTED {
      @Override
      boolean isVisible(int modifiers) {
        return Modifier.isPublic(modifiers) || Modifier.isProtected(modifiers);
      }
    },