DefaultMessageId implements MessageId { @Override public String toString() { return "DefaultMessageId{}"; } DefaultMessageId(); @Override boolean isSerializable(); @Override String serialize(); @Override final boolean equals(Object obj); @Override final int hashCode(); @Override String toString();  }
@Test void composedMessageIdToStringCallShouldNotThrowWhenUsingDefaultMessageId() { ComposedMessageId composedMessageId = new ComposedMessageId( TestId.of(52), new DefaultMessageId(), MessageUid.of(23)); composedMessageId.toString(); }