javassist.CannotCompileException: [source error] no such field: populateUser

[Roronoa-Zoro]

I want to make javaagent with javassist, and in sample project, there's dummy dao class. `public class UserDao {

public User populateUser(User user) {
    user.setAddress(UUID.randomUUID().toString());
    user.setAge((int) (System.currentTimeMillis() / 100000));
    return user;
}

public User getUser(String name) {
    return new User(name);
}

}`

and javassist throws an exception " javassist.CannotCompileException: [source error] no such field: populateUser" when call insertBefore method. String methodName = method.getName(); method.addLocalVariable("__methodName", stringClass); method.insertBefore("__methodName = " + methodName + ";"); method is instance of CtMethod.

can anyone help on this? Thanks.

jdk: 1.8 javassist: 3.27