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From Cory Sanoy <CorySa...@smarttech.com>
Subject RE: Webstart and Squiggle
Date Thu, 30 Jan 2003 00:46:12 GMT
The js.jar is in the path and 'all-permissions' is specified in the jnlp

There are issues with classloaders
(http://java.sun.com/products/javawebstart/faq.html#54) in the security
mechanism employed by webstart. The documentation states (in the link above)
that the classloader user to load the classes must be the one that loaded
the application (Thread.getCurrent().getContextClassLoader()). 

I think the RhinoClassLoader is not using the classloader that loaded the
application and therefore webstart cannot find the
org/mozilla/javascript/NativeScript class in the jnlp file? Has anyone found
a fix for this???

Here is the jnlp file that I am using: 

<?xml version="1.0" encoding="utf-8"?>
      <!-- JNLP File for Squiggle SVG Browser Application -->  
          <homepage href="http://webserver/"/>
          <icon href="images/batik.jpg"/>
          <j2se version="1.4"/>
          <jar href="lib/batik-squiggle.jar"/>
          <jar href="lib/batik-ext.jar"/>
          <jar href="lib/batik-util.jar"/>
          <jar href="lib/batik-awt-util.jar"/>
          <jar href="lib/batik-gui-util.jar"/>
          <jar href="lib/batik-dom.jar"/>
          <jar href="lib/batik-css.jar"/>
          <jar href="lib/batik-svg-dom.jar"/>
          <jar href="lib/batik-swing.jar"/>
          <jar href="lib/batik-gvt.jar"/>
          <jar href="lib/batik-parser.jar"/>
          <jar href="lib/batik-script.jar"/>
          <jar href="lib/batik-transcoder.jar"/>
          <jar href="lib/batik-bridge.jar"/>
          <jar href="lib/batik-xml.jar"/>
          <jar href="lib/crimson-parser.jar"/>
          <jar href="lib/js.jar"/>
Thanks again,

-----Original Message-----
From: Vincent Hardy [mailto:vincent.hardy@sun.com]
Sent: Wednesday, January 29, 2003 11:49 AM
To: Batik Users
Cc: Cory Sanoy; 'thomas.deweese@kodak.com'
Subject: Re: Webstart and Squiggle

Hello Cory,

If you want to run JavaScript under WebStart, you need to grant special 
permissions to your WebStart application. I assume that you have js.jar 
in your classpath as I see some org.mozilla.javascript code in the stack 

Try something like:


in your JNLP file.

Thomas E Deweese wrote:
>>>>>>"CS" == Cory Sanoy <CorySanoy@smarttech.com> writes:
> CS> I am attempting to launch squiggle with Java Web Start and when I
> CS> load an SVG file that contains javascript code I get the following
> CS> error:
> CS> java.lang.NoClassDefFoundError:
> CS> org/mozilla/javascript/NativeScript at
>     You probably don't hav js.jar on the class path.  This is where
> the javascript interpreter lives.
> CS> java.lang.ClassLoader.defineClass0(Native Method) at
> CS> java.lang.ClassLoader.defineClass(Unknown Source) at
> CS> java.security.SecureClassLoader.defineClass(Unknown Source) at
> CS> org.apache.batik.script.rhino.RhinoClassLoader.defineClass(Unknown
> CS> Source) at
> CS> org.apache.batik.script.rhino.BatikSecuritySupport.defineClass(Unknown
> CS> Source) at
> CS> org.mozilla.javascript.optimizer.Codegen.compile(Unknown Source)
> CS> at org.mozilla.javascript.Context.compile(Unknown Source) at
> CS> org.mozilla.javascript.Context.compile(Unknown Source) at
> CS> org.mozilla.javascript.Context.compileReader(Unknown Source) at
> CS> org.mozilla.javascript.Context.evaluateReader(Unknown Source) at
> CS> org.apache.batik.script.rhino.RhinoInterpreter.evaluate(Unknown
> CS> Source)
> CS> at
> CS> org.apache.batik.script.rhino.RhinoInterpreter.bindObject(Unknown
> CS> Source)
> CS> at
> CS>
> CS> wn Source) at
> CS> org.apache.batik.bridge.BaseScriptingEnvironment.loadScripts(Unknown
> CS> Source) at
> CS> org.apache.batik.bridge.UpdateManager.dispatchSVGLoadEvent(Unknown
> CS> Source) at
> CS> org.apache.batik.swing.svg.SVGLoadEventDispatcher.run(Unknown
> CS> Source)
> CS> I am using batik 1.5 beta 4 and Java 1.4 and/or 1.3. I have read
> CS> some discussions items that define the issue and I understand the
> CS> source of the problem. However I have yet to find a solution to
> CS> the problem. Has anyone solved the problem and if so how? Is there
> CS> a quick fix?
> CS> Thanks, /Cory
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