Spring AOP：确认CGLIB代理行为

Question

While referring to 'Pro Spring 2.5', I came across the following statement (page 193):

For instance, the CGLIB proxy generates the appropriate bytecode to invoke any unadvised methods directly, dramatically reducing the overhead introduced by the proxy.

I have looked at the Spring source code and tried a few experiments, but could not confirm this statement. What simple program can I write to confirm it?

Answer 1

Use VisualVM and profile the code, or dump the bytecode using BCEL and look through the assembly. For the visualvm route, profile the code, take a snapshot, verifiy the method stack trace.