@Override
      <T> Iterable<T> view(T root, TreeTraverser<T> viewer) {
        return viewer.postOrderTraversal(root);
      }
    },
    BREADTH_FIRST {
      @Override
      <T> Iterable<T> view(T root, TreeTraverser<T> viewer) {
        return viewer.breadthFirstTraversal(root);
      }
    };

    abstract <T> Iterable<T> view(T root, TreeTraverser<T> viewer);
  }

      @Override
      <T> Iterable<T> view(T root, TreeTraverser<T> viewer) {
        return viewer.postOrderTraversal(root);
      }
    },
    BREADTH_FIRST {
      @Override
      <T> Iterable<T> view(T root, TreeTraverser<T> viewer) {
        return viewer.breadthFirstTraversal(root);
      }
    };

    abstract <T> Iterable<T> view(T root, TreeTraverser<T> viewer);
  }

        // Test with multiple roles
        testUser.setRoleNames(new String[] { "admin", "user", "manager" });
        assertTrue(fessUserBean.hasRoles(new String[] { "admin" }));
        assertTrue(fessUserBean.hasRoles(new String[] { "user", "guest" }));
        assertTrue(fessUserBean.hasRoles(new String[] { "manager", "viewer" }));

        String[] roles = secured.value();
        assertNotNull(roles);
        assertEquals(0, roles.length);
    }

    // Test with special characters in roles
    @Secured({ "ROLE_USER-ADMIN", "ROLE_USER.VIEWER", "ROLE_USER_EDITOR", "ROLE$SPECIAL" })
    static class SpecialCharacterRolesClass {
    }

    public void test_specialCharactersInRoles() {

    }

    public void test_allFieldsCombination() {
        // Test with all fields populated
        String name = "complexUser";
        String[] roles = { "admin", "user", "viewer" };
        String[] groups = { "developers", "managers", "qa" };
        String[] permissions = { "read:all", "write:docs", "delete:own", "execute:scripts" };

        FacetQueryView view1 = list.get(0);
        assertEquals("labels.facet_timestamp_title", view1.getTitle());
        assertEquals(4, view1.getQueryMap().size());
        FacetQueryView view2 = list.get(1);
        assertEquals("labels.facet_contentLength_title", view2.getTitle());
        assertEquals(5, view2.getQueryMap().size());
        FacetQueryView view3 = list.get(2);

 * <p>The mappings corresponding to a given row key may be viewed as a {@link Map} whose keys are
 * the columns. The reverse is also available, associating a column with a row key / value map. Note
 * that, in some implementations, data access by column key may have fewer supported operations or
 * worse performance than data access by row key.
 *
 * <p>The methods returning collections or maps always return views of the underlying table.

   * predicate. The returned multimap is a live view of {@code unfiltered}; changes to one affect
   * the other.
   *
   * <p>The resulting multimap's views have iterators that don't support {@code remove()}, but all
   * other methods are supported by the multimap and its views. When adding a key that doesn't

   * predicate. The returned multimap is a live view of {@code unfiltered}; changes to one affect
   * the other.
   *
   * <p>The resulting multimap's views have iterators that don't support {@code remove()}, but all
   * other methods are supported by the multimap and its views. When adding a key that doesn't

  Set<Entry<E>> entrySet();

  /**
   * An unmodifiable element-count pair for a multiset. The {@link Multiset#entrySet} method returns
   * a view of the multiset whose elements are of this class. A multiset implementation may return
   * Entry instances that are either live "read-through" views to the Multiset, or immutable
   * snapshots. Note that this type is unrelated to the similarly-named type {@code Map.Entry}.
   *
   * @since 2.0