[Bug 1794] New: LiveConnect - Problem with String arrays between Java and Javascript

Mon May 26 13:34:39 UTC 2014

http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=1794

            Bug ID: 1794
           Summary: LiveConnect - Problem with String arrays between Java
                    and Javascript
           Product: IcedTea-Web
           Version: hg
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: NetX (javaws)
          Assignee: omajid at redhat.com
          Reporter: ldracz at redhat.com
                CC: unassigned at icedtea.classpath.org

There is a problem with String arrays between Java/Javascript.
The problem is accessing a String Array made in Java from Javascript. 
Here is an example where this occurs in IcedTea-Web but not in Java plugin.

The html
-------------------------

<html>
<body>
      <div id="byids"></div><br>
       <div id="writetojss"></div>
       <br>
       ------------
       <br>
       <br>
       <div id="byid"></div><br>
       <div id="writetojs"></div>
       <applet id='appletid' code='javatojs.JavatoJS'
       archive='./sjavatojs.jar' width=1 height=1>
                           <param name="scriptable" value="true" >
                           <param name="mayscript" value="true" >
       </applet>

<script type="text/javascript">

       byids = document.getElementById("byids");
       byids.innerHTML = "String by Id: "+appletid.myString;

       byid = document.getElementById("byid");
       byid.innerHTML = "StringArray by Id: " +
       appletid.myStringArray[0] + ", " + appletid.myStringArray[1] + ", " +
       appletid.myStringArray[2];

function writeToJS(myStringArray) {

       tojs = document.getElementById("writetojs");
       tojs.innerHTML = "StringArray by JSObject: "+ myStringArray[0] +
       ", " + myStringArray[1] + ", " + myStringArray[2];
}

function writeToJSs(myString) {

       tojss = document.getElementById("writetojss");
       tojss.innerHTML = "String by JSObject: "+ myString;
}

</script>
</body>
</html>

The java file
-------------------------

package javatojs;

import java.applet.Applet;
import netscape.javascript.*; // add plugin.jar to classpath during
compilation

public class JavatoJS extends Applet {

       public String[] myStringArray = {"String a","String b","String c"};
       public String myString = "String";

       public void init() {

           try{

               JSObject window = JSObject.getWindow(this);

               window.call("writeToJS", new Object[] {myStringArray});
               window.call("writeToJSs", new Object[] {myString});

           } catch (JSException jse) {
               jse.printStackTrace();
           }

       }

}

Here is another example where with ORACLE JRE on windows or mac the alert shows
a string.

jstr: appletstringvalue1

But using a similar script on ubuntu with OPENJDK it appears as

jstr: undefined

The java.log shows the value of jstr if printed to the log in both cases.
Javascript is not receiving the applet values on linux or openjdk.

HTML:

           <applet
                   id='appletid'
                   codebase="/demo/"
                   code='appletpkg.appletclass'
                   archive='./sapplet.jar'
                   width=1 height=1>
              <param name="valuename1" value="value1">
           </applet>

In the applet public class:

       public String[] str = new String[100];

       @Override
       public void init() {

           nstr = this.getParameter("valuename1");
           //TODO
           this.str[0]= "appletstringvalue1";

       }

Javascript:

        var a = document.getElementById('appletid');
        var jstr = a.str;

        alert('jstr: '+jstr[0]);

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