Shared Questionnaire System

Hello!
When I try to star SourceEditor2.0 (by just clicking on the link on your homepage), the JavaWebStart gives me this error:

java.lang.reflect.InvocationTargetException

I'll paste here what it says in the dialog box (first tab):

@
<jnlp
spec="1.0+"
codebase="http://sqs2.net/2009/12/04"
href="SourceEditor.jnlp">
<information>
<title>SQS SourceEditor2.0(2009/12/04)</title>
<vendor>Hiroya KUBO, Chiba University of Commerce</vendor>
<homepage href="http://www.sqs2.net/">
</homepage>
<icon href="wizard.gif" kind="default">
</icon>
<icon href="wizard.gif" kind="splash">
</icon>
<icon href="wizard.gif" kind="shortcut">
</icon>
<related-content href="LICENSE.txt">
<title>SourceEditor's License</title>
<description>Apache License, Version 2</description>
</related-content>

<update check="background" policy="prompt-update"/>

<description>Shared Questionnaire System</description>
    <description kind="one-line">0</description>
    <description kind="short">
    </description>
    <!--<association mime-type="application/x-sqs-source" extensions="sqs"/>--> 
    <offline-allowed>
    </offline-allowed>
      <shortcut online="false">
        <!--<desktop/>-->
        <menu submenu="SQS"/>
      </shortcut>
  </information>

<security>
    <all-permissions/>
  </security>

<resources>
    <j2se version="1.6+" max-heap-size="812m" initial-heap-size="32m" />
    <!--Dawt.useSystemAAFontSettings=on-->

<jar href="SourceEditor-2.0-SNAPSHOT.jar" main="true"/>
<jar href="sqs-util-1.3.37.jar"/>
<jar href="commons-logging-1.1.jar"/>
<jar href="jetty-6.1.9.jar"/>
<jar href="jetty-util-6.1.9.jar"/>
<jar href="servlet-api-2.5-6.1.9.jar"/>
<jar href="xercesImpl-2.9.1.jar"/>
<jar href="xml-apis-1.3.04.jar"/>
<jar href="xalan-2.7.0.jar"/>
<jar href="serializer-2.7.1.jar"/>
<jar href="commons-io-1.4.jar"/>
<jar href="commons-lang-2.4.jar"/>
<jar href="commons-codec-1.2.jar"/>
<jar href="sqs-translator-1.0.9.jar"/>
<jar href="xmlgraphics-commons-1.3.1.jar"/>
<jar href="fop-0.95-20090301.jar"/>
<jar href="batik-all-1.7.jar"/>
<jar href="avalon-framework-api-4.2.0.jar"/>
<jar href="avalon-framework-impl-4.2.0.jar"/>
<jar href="itext-2.0.4.jar"/>
<jar href="xml-apis-ext-1.3.04.jar"/>
<jar href="ipafont-00201.jar"/>
<jar href="servlet-api-2.3.jar"/>

</resources>
  <application-desc main-class="net.sf.sqs_xml.editor.sqs.swing.SourceEditorLauncher">
<!--    <argument>arg1</argument> -->
<!--    <argument>arg2</argument> -->
  </application-desc>
</jnlp>@

And also (second tab):

java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.javaws.Launcher.executeApplication(Unknown Source)
at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
at com.sun.javaws.Launcher.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassCircularityError: net/sqs2/net/ClassURLConnection
at net.sqs2.net.ClassURLStreamHandlerFactory.createURLStreamHandler(ClassURLStreamHandlerFactory.java:12)
at java.net.URL.getURLStreamHandler(Unknown Source)
at java.net.URL.<init>(Unknown Source)
at java.net.URL.<init>(Unknown Source)
at java.net.URL.<init>(Unknown Source)
at java.net.JarURLConnection.parseSpecs(Unknown Source)
at java.net.JarURLConnection.<init>(Unknown Source)
at sun.net.www.protocol.jar.JarURLConnection.<init>(Unknown Source)
at com.sun.jnlp.JNLPCachedJarURLConnection.<init>(Unknown Source)
at com.sun.javaws.net.protocol.jar.Handler.openConnection(Unknown Source)
at java.net.URL.openConnection(Unknown Source)
at com.sun.deploy.util.URLUtil.checkTargetURL(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.checkResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at net.sqs2.net.ClassURLStreamHandlerFactory.createURLStreamHandler(ClassURLStreamHandlerFactory.java:12)
at java.net.URL.getURLStreamHandler(Unknown Source)
at java.net.URL.<init>(Unknown Source)
at java.net.URL.<init>(Unknown Source)
at java.net.URL.<init>(Unknown Source)
at net.sf.sqs_xml.editor.base.swing.SourceEditorMenuBarMediator.createImageIcon(SourceEditorMenuBarMediator.java:87)
at net.sf.sqs_xml.editor.sqs.swing.SQSSourceEditorMenuBarMediator.<clinit>(SQSSourceEditorMenuBarMediator.java:58)
at net.sf.sqs_xml.editor.sqs.swing.SQSSourceEditorMediator.createSourceEditorMenuBarMediator(SQSSourceEditorMediator.java:92)
at net.sf.sqs_xml.editor.base.swing.SourceEditorMediator.<init>(SourceEditorMediator.java:58)
at net.sf.sqs_xml.editor.sqs.swing.SQSSourceEditorMediator.<init>(SQSSourceEditorMediator.java:62)
at net.sf.sqs_xml.editor.sqs.swing.SourceEditorLauncher.main(SourceEditorLauncher.java:18)
... 9 more

I have the latest version of Java installed. And the MarkReader works perfectly.

Arigatou gozaimasu!