"{supportedFields: {activity: ['id', 'title']}}" +
"}}}");
containerConfig = new JsonContainerConfig(config, Expressions.forTesting());
handler = new ActivityHandler(activityService, containerConfig);
registry = new DefaultHandlerRegistry(null, converter,
new HandlerExecutionListener.NoOpHandler());
registry.addHandlers(ImmutableSet.<Object>of(handler));
}