This failure is from a historical corba SQE test case product/rmi-jrmp/Juicer.

It can be reproduced with following steps.
1. Create AppletServer.java with following content:

import java.awt.Panel;

public class AppletServer extends java.applet.Applet implements java.rmi.Remote {
Panel panel = null;
}
2. compile it with ${jigsaw_jdk}/bin/javac AppletServer.java
3. execute ${jigsaw_jdk}/bin/rmic AppletServer

It will immediately failed with
error: Class java.awt.Panel not found in class java.applet.Applet