Debugging with JMockit issues

I have been having an issue with debugging a JMockit/Reflected protected method. So when I debug I am able to enter the method from the test case via F5 to the first line, but when I try to progress any further inside the method it kicks me back to the test case

Why would it be doing this?

Everything is semantically correct but I am getting logic errors because of this

@SuppressWarnings("finally")
    protected int removeESN() {        

        String thing= getSelectedX();
        try {
            List<String> things= db.getX();
            if (things.size() == 0) {
                msgHandler.displayErrorMessage(MessageHandler.NOT_FOUND,
                        "There are no things in the database.");
                return MessageHandler.NOT_FOUND;
            }

            if(!thingisExistent(thing,things)){
                msgHandler.displayErrorMessage(DepotMessageHandler.DOES_NOT_EXIST,
                        "Thing whose thing is '"+thing+
                        "' does not exist.");
                return MessageHandler.DOES_NOT_EXIST;
            }
            int status = updateStatus(thing); 
            MessageHandler.SUCCESS:messageHandler.DATABASE_ERROR;

            if(status == MessageHandler.SUCCESS){
                msgHandler.displayMessage(status,"Thing"+thing+" was removed.");
            } else{
                msgHandler.displayMessage(status,"An error occurred while accessing the database");
            }
            return status;
        }