// Verify the class is generic
        final java.lang.reflect.TypeVariable<?>[] typeParameters = FessActionValidator.class.getTypeParameters();
        assertEquals("Should have one type parameter", 1, typeParameters.length);
        assertEquals("Type parameter should be MESSAGES", "MESSAGES", typeParameters[0].getName());
    }

    @Test
    public void test_packageStructure() {

<h4 id="Alias_declarations">Alias declarations</h4>

<p>
An alias declaration binds an identifier to the given type
[<a href="#Go_1.9">Go 1.9</a>].
</p>

<pre class="ebnf">
AliasDecl = identifier [ TypeParameters ] "=" Type .
</pre>

<p>
Within the <a href="#Declarations_and_scope">scope</a> of
the identifier, it serves as an <i>alias</i> for the given type.
</p>

<pre>
type (

   * @Nullable X>, then users might pass a TypeParameter<Y>, where Y is a subtype of X, while still
   * passing a TypeToken<X>. This would be invalid. Maybe we could accept a TypeParameter<@PolyNull
   * X> if we support such a thing? It would be weird or misleading for users to be able to pass
   * `new TypeParameter<@Nullable T>() {}` and have it act as a plain `TypeParameter<T>`, but

    return new TypeToken<Map<K, V>>() {}.where(new TypeParameter<K>() {}, keyType)
        .where(new TypeParameter<V>() {}, valueType);
  }

  private static <T> TypeToken<T[]> arrayOf(Class<T> componentType) {
    return new TypeToken<T[]>() {}.where(new TypeParameter<T>() {}, componentType);
  }

  public <T> void testNulls() {

    return new TypeToken<Map<K, V>>() {}.where(new TypeParameter<K>() {}, keyType)
        .where(new TypeParameter<V>() {}, valueType);
  }

  private static <T> TypeToken<T[]> arrayOf(Class<T> componentType) {
    return new TypeToken<T[]>() {}.where(new TypeParameter<T>() {}, componentType);
  }

  public <T> void testNulls() {

            new TypeToken<B>(getClass()) {}
            // B's bound may have already resolved to something.
            // Make sure it can still further resolve when given a context.
            .where(new TypeParameter<B>() {}, (Class) Integer.class).getType();
        assertEquals(Integer.class, type);
      }
    }
    new ForTwoStageResolution<Integer>().verifyTwoStageResolution();

            new TypeToken<B>(getClass()) {}
            // B's bound may have already resolved to something.
            // Make sure it can still further resolve when given a context.
            .where(new TypeParameter<B>() {}, (Class) Integer.class).getType();
        assertEquals(Integer.class, type);
      }
    }
    new ForTwoStageResolution<Integer>().verifyTwoStageResolution();