TomcatGroupManager extends BaseTomcatManager implements GroupManager,
                                                                     ContextualManager { @Override public Group get(String identifier) throws SecurityManagementException { MemoryUserDatabase userDatabase = getDatabase(); try { org.apache.catalina.Role group = getRole(userDatabase, identifier); return createGroup(group); } finally { closeDatabase(userDatabase); } } TomcatGroupManager();  TomcatGroupManager(final Map<String, String> gitPrefs);  TomcatGroupManager(final ConfigProperties gitPrefs); @Override void initialize(UserSystemManager userSystemManager); @Override void destroy(); @Override SearchResponse<Group> search(SearchRequest request); @Override Group get(String identifier); @Override List<Group> getAll(); @Override Group create(Group entity); @Override Group update(Group entity); @Override void delete(String... identifiers); @Override GroupManagerSettings getSettings(); @Override void assignUsers(String name,
                            Collection<String> users);  }
@Test public void testGet() { assertGet(ADMIN); assertGet("role1"); assertGet("role2"); assertGet("role3"); }