### Question:
StatelessJWTCache { public boolean contains(SessionInfo info) { return sessionInfoCache.containsValue(info); } @Inject  StatelessJWTCache(StatelessConfig config, ServiceListeners listeners); void cache(SessionInfo info, String jwtToken); SessionInfo getSessionInfo(String jwt); boolean contains(SessionInfo info); boolean contains(String jwtToken);  }### Answer:
@Test public void shouldNotContainNullJWT() { cache = new StatelessJWTCache(mockConfig, mockListeners); assertThat(cache.contains((String)null)).isFalse(); }
@Test public void shouldNotContainNullSessionInfo() { cache = new StatelessJWTCache(mockConfig, mockListeners); assertThat(cache.contains((SessionInfo)null)).isFalse(); }