GWT: open relative url in a new window

GWTExample.java

public class GWTExample {
  public static void openRelativeURL(String path, String name) {
    String url = GWT.getHostPageBaseURL() + path;
    com.google.gwt.user.client.Window.open(url, name, null);
  }
  
  public static void main(String[] args){
    openRelativeURL("about.html");
  }
}