private static int countMessagesForWord(TestOutputWord word, MultiValueMap<TestOutputWord, TestOutputWordCounter> messagesForUsers)
{
- return messagesForUsers.get(word).size();
+ return messagesForUsers.get(word) == null
+ ? 0
+ : messagesForUsers.get(word).size();
}
static void assertExpectedState(ReadOnlyKeyValueStore<Word, Long> store)