dubbo2.6.x以上版本javassist无法动态加载class

[zhaozengbin]

• I have searched the issues of this repository and believe that this is not a duplicate.
• I have checked the FAQ of this repository and believe that this is not a duplicate.

Environment

• Dubbo version: 2.6.0及以上
• Operating System version: mac
• Java version: 1.8

Steps to reproduce this issue

1. 2.5.3版本通过javassist动态加载class，没有任何问题
2. 2.6.0及以上版本通过javassist加载class，在idea内启动项目没有问题，但是通过springboot java -jar启动后会报javassist.NotFoundException异常。

Pls. provide [GitHub address] to reproduce this issue.

Expected Result

Caused by: javassist.NotFoundException: com.alibaba.dubbo.common.bytecode.Wrapper
at javassist.ClassPool.get(ClassPool.java:452)
at com.alibaba.dubbo.common.bytecode.ClassGenerator.toClass(ClassGenerator.java:263)

What do you expected from the above steps？

Actual Result

无法正常加载业务class
What actually happens?

If there is an exception, please attach the exception trace:

Just put your stack trace here!

[CrazyHZM]

Try it with the latest version, if you still have problems, you can reopen the issues