Problem with Java Web Start

###########Launch JNLP file
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<jnlp codebase="file:/Z:/3d/Universe_virtual/dist/" href="launch.jnlp" spec="1.0+">
    <information>
        <title>Universe</title>
        <vendor>Administrator</vendor>
        <homepage href=""/>
        <description>Universe</description>
        <description kind="short">Universe</description>
    <icon href="icon.jpg" kind="default"/>
</information>
<security>
<all-permissions/>
</security>
    <resources>
<j2se version="1.6+"/>
<jar eager="true" href="Universe_virtual.jar" main="true"/>
<extension href="http://download.java.net/media/java3d/webstart/release/java3d-latest.jnlp"/>
</resources>
    <application-desc main-class="universe.Universe">
    </application-desc>
</jnlp>
 
########Exception 
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.ExceptionInInitializerError
	at javax.media.j3d.VirtualUniverse.<clinit>(VirtualUniverse.java:227)
	at universe.common.Java3dApplet.createVirtualUniverse(Java3dApplet.java:358)
	at universe.common.Java3dApplet.initJava3d(Java3dApplet.java:159)
	at universe.Universe.initJava3d(Universe.java:199)
	at universe.Universe.<init>(Universe.java:747)
	at universe.Universe.main(Universe.java:1144)
	... 9 more
Caused by: java.security.AccessControlException: access denied (java.lang.RuntimePermission modifyThreadGroup)
	at java.security.AccessControlContext.checkPermission(Unknown Source)
	at java.security.AccessController.checkPermission(Unknown Source)
	at java.lang.SecurityManager.checkPermission(Unknown Source)
	at java.lang.SecurityManager.checkAccess(Unknown Source)
	at java.lang.ThreadGroup.checkAccess(Unknown Source)
	at java.lang.ThreadGroup.getParent(Unknown Source)
	at javax.media.j3d.MasterControl$16.run(MasterControl.java:3680)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.media.j3d.MasterControl.<clinit>(MasterControl.java:3673)
	... 15 more

                                  

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