}
assertFalse("Group file should not exist", file.exists());
TestBrokerConfiguration config = getBrokerConfiguration();
config.removeObjectConfiguration(GroupProvider.class, TestBrokerConfiguration.ENTRY_NAME_GROUP_FILE);
UUID id = config.addGroupFileConfiguration(file.getAbsolutePath());
config.setSaved(false);
startBroker(0, true);
getRestTestHelper().setUsernameAndPassword(BrokerOptions.MANAGEMENT_MODE_USER_NAME, MANAGEMENT_MODE_PASSWORD);