when(core.getReplies(anyString())).thenAnswer(new Answer<List<PostReply>>() {
@Override
public List<PostReply> answer(InvocationOnMock invocation) throws Throwable {
when(core.getReplies(anyString())).thenAnswer(new Answer<List<PostReply>>() {
@Override
public List<PostReply> answer(InvocationOnMock invocation) throws Throwable {