Oliverwqcwrw commented on issue #4535:
URL: https://github.com/apache/rocketmq/issues/4535#issuecomment-1171903170
Hi @novicate ,
there have three advises and hope these can help you
1. abstract class can not be definition to static
2. extend should be extends
3. The Consumer should `Override` onMessage method
Have a great day!
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