### Question:
AmqpJmsMapMessageFacade extends AmqpJmsMessageFacade implements JmsMapMessageFacade { @Override public Object remove(String key) { return messageBodyMap.remove(key); }  @Override byte getJmsMsgType(); @Override AmqpJmsMapMessageFacade copy(); @Override Enumeration<String> getMapNames(); @Override boolean itemExists(String key); @Override Object get(String key); @Override void put(String key, Object value); @Override Object remove(String key); @Override void clearBody(); @Override boolean hasBody(); @Override JmsMapMessage asJmsMessage();  }### Answer:
@Test public void testNewMessageToSendRemoveReturnsNull() throws Exception { AmqpJmsMapMessageFacade amqpMapMessageFacade = createNewMapMessageFacade(); assertNull(amqpMapMessageFacade.remove("entry")); }