Problem with JSNI call to Java Method in FormItem's setValue

[mcytryck]

I tried to extend TextItem and overwrite its setValue method to call via JSNI a Java method.
It succeeded with a static method but failed with a instance method.
Running this code in Hosted Mode throws an exception:
Uncaught JavaScript exception [Das Objekt unterstützt diese Eigenschaft oder Methode nicht.]

Could anyone help me?

package de.auco.smartgwt.test.client;

import com.smartgwt.client.util.SC;
import com.smartgwt.client.widgets.form.fields.TextItem;

public class CustomTextItem extends TextItem {
	
	static {
		defineClass();
	}
	
	
	private final static native void defineClass()/*-{
		$wnd.isc.defineClass("CustomTextItem", $wnd.isc.TextItem);
		$wnd.isc.CustomTextItem.addProperties({
			setValue: function(value) {
				@de.auco.smartgwt.test.client.CustomTextItem::staticDoSomething(Ljava/lang/String;)(value);
				this.@de.auco.smartgwt.test.client.CustomTextItem::instanceDoSomething(Ljava/lang/String;)(value);
				this.Super("setValue", arguments);
			}
		});
	}-*/;
	
	public static void staticDoSomething(String value){
		SC.say("static method called");
	}
	
	public void instanceDoSomething(String value){
		SC.say("instance method called");
	}
	
	protected CustomTextItem(String name) {
		super(name);
		setType("CustomText");
	}
}

[mhulsman]

Have you read the basic gwt tutorial on JSNI? It explictly says that putting this.something in a function call will not work like you think it will.

Work around is

var blah = this;
		$wnd.isc.CustomTextItem.addProperties({
			setValue: function(value) {
				@de.auco.smartgwt.test.client.CustomTextItem::staticDoSomething(Ljava/lang/String;)(value);
				blah.@de.auco.smartgwt.test.client.CustomTextItem::instanceDoSomething(Ljava/lang/String;)(value);
				blah.Super("setValue", arguments);
			}
		});