GWT Boot - Better Implementation

YourEntryPoint.java

package hello.client;

import com.google.gwt.core.client.*;
import com.google.gwt.user.client.ui.*;

@GwtModule(renameTo="basic")
public class YourEntryPoint implements EntryPoint {
   @Override
   public void onModuleLoad() {
      Button button = new Button("Click me");
      button.addClickHandler(clickEvent -> { 
         Window.alert("Hello World!"); 
      });
      RootPanel.get("helloButton").add(button);
   }
   
   @GwtModuleProperty
   public String inherits() {
      return "com.github.gwtboot.starter.Starter";  
   } 
   
   @GwtModuleProperty
   public String sourcePath() {
      return "client";
   }
   
   @GwtModuleProperty
   public Map setProperty() {
      Map<String, String> map = new HashMap<>();
      map.add("gwt.logging.logLevel", "INFO");
      map.add("gwt.logging.enabled", "TRUE");
      return map;
   }
}

Yes, I agree with you.