A negative message count is almost always the result of a bug or perhaps the corruption of internal state due to a JVM issue (e.g. running out of heap). There's no documentation on it because it shouldn't happen. If you encounter this situation during normal operation file a bug report in the ActiveMQ Artemis Jira. Please include a full description of the use-case and a reproducer if possible.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…