// `boolean canAccess(Object)` and `boolean trySetAccessible()`.
  public void testApiCompatibleWithAccessibleObject() {
    ImmutableSet<String> invokableMethods =
        publicMethodSignatures(Invokable.class, ImmutableSet.<String>of());
    ImmutableSet<String> accessibleObjectMethods =
        publicMethodSignatures(AccessibleObject.class, ImmutableSet.of("canAccess"));

  // `boolean canAccess(Object)`.
  public void testApiCompatibleWithAccessibleObject() {
    ImmutableSet<String> invokableMethods =
        publicMethodSignatures(Invokable.class, ImmutableSet.<String>of());
    ImmutableSet<String> accessibleObjectMethods =
        publicMethodSignatures(AccessibleObject.class, ImmutableSet.of("canAccess"));