Incorrect generation of properties with generic wildcard

[mkarneim]

For example, the generated builder for the following pojo is not correct:

@GeneratePojoBuilder
public class Contact {
  public List<? extends Job> jobs;
}

The with-method "withJobs" should have the following signature:

public ContactBuilder withJobs(List<? extends Job> jobs)

but has:

public ContactBuilder withJobs(List jobs)