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Asked: 2026-05-23T13:01:48+00:00

I use Java and call a webservice. When I display the response on my

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I use Java and call a webservice. When I display the response on my web page with :

String str=answer.toString();
label.setText(str);

It’s okay. But when I want to call a JavaScript function, I fail. I used a code which worked ( here ) and changed it to do what I want.
So in the beginning of my code I have

import netscape.javascript.JSException;
import netscape.javascript.JSObject;

then later

        try {
        jso = JSObject.getWindow(this);  // line 38
    } catch (JSException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

then later

jso.call("affiche1",new String[] {String.valueOf(str.trim()).trim()}); // line 110

“affiche” is my js function which should display the answer on my web page.

When I run it with Eclipse I get the errors

netscape.javascript.JSException
at netscape.javascript.JSObject.getWindow(Unknown Source)
at Test2.init(Test2.java:38)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

java.lang.NullPointerException
at Test2$1.actionPerformed(Test2.java:110)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

The lines 38 and 110 are precised above.
When I run it in Mozilla, I get the errors

XML or text declaration not at start of entity Line 1

  "<html xmlns="http://www.w3.org/1999/xh...teReply></soap:Body></soap:Envelope></"

and

An invalid or illegal string was specified” code: “12
file:///L:/pwe/onload_refresh/ngonl/pub/htmlkit/effects.js
Line 22

I have not found something similar on the web. I just found advices : to drop the whitespace in my xml file, but I think it is not that because there is no problem when I display it inside the applet (and I don’t know exactly how doing that, I am a very beginner in java).

I really don’t understand because I have the line 

jso.call("affiche1",new String[] {String.valueOf(str.trim()).trim()});

I drop white spaces before and after with trim() – two are not necessary, but I wanted to be sure to drop it ! I think the errors in Eclipse are not important because I got the same with something which works (she may be here because it s calling javascript, and javasript is not in my eclipse project ?).

I find it very strange because I have a string, and not a XML, right ? So I really dont understand why this error is raised…

Thank you very much for any help and advice.

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1 Answer

  1. Editorial Team

    Problem solved :

    it was the innerHTML, because there were non-HTML tags inside.
    So, instead of doing directly a innerHTML, I call this function in javascript :

    function test (str) {
    function parseXML( xml ) {
        if( window.ActiveXObject && window.GetObject ) {
            var dom = new ActiveXObject( 'Microsoft.XMLDOM' );
            dom.loadXML( xml );
            return dom;
        }
        if( window.DOMParser )
            return new DOMParser().parseFromString( xml, 'text/xml' );
        throw new Error( 'No XML parser available' );
    }

    str = parseXML(str);
    var supertest = str.getElementsByTagName("tag1")[0].childNodes[0].nodeValue;
    document.getElementById('ici').innerHTML ="value of tag1  :  " + supertest;
}

    I parse it (string to dom), then I get the value I want (into tag1 tag), then I edit the html. In fact, that is what I wanted. Testing to display the entire string was not a good idea, and couldnt be done because of the < tag > inside.

    Hope it will help someone.

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