How should I debug the modified class?

[homejim]

When using the hotswap agent, some framework classes are modified. I want to debug these framework classes, but during debugging, the source code doesn't match the modified classes. How can I debug the modified classes?

[skybber]

You can place modified classes on extraClasspath by following the instructions at the

HotswapAgent configuration documentation.

Classes on extraClasspath have the highest priority for classloaders. This means that you can put classes typically stored in jar files on extraClasspath, and these classes will be used instead of the ones in the jars. This is a powerful feature, especially when combined with autoHotswap=true.