RunJettyRun plugin and hot swap

Question

I am using Java 1.8.0_144, Eclipse (Oxygen) and the RunJettyRun plugin on Windows to test my web application. When I change Java code in a non-stationary method (without changing the method signature or adding a new method), this change is not reflected unless I turn off and switch from RunJettyRun. I made some configuration as shown below, but it did not work.

How can I see code change effective without shutting down RunJettyRun?

Thanks!