### Question:
FileSessionStorage { public void putSessionProperties(Map<String, ?> properties) { properties.forEach((k, v) -> putSessionProperty(k, v)); } FileSessionStorage(IWorkspaceDispatcher workspaceDispatcher, String protocol, String sessionId); void putSessionProperties(Map<String, ?> properties); void flush(); T readSessionProperty(String key); void putSessionProperty(String key, T value);  }### Answer:
@Test public void aTestFlush() { sessionManager.putSessionProperties(new HashMap<String, String>() {{ put("Test", RandomStringUtils.randomAlphabetic(10)); }}); }