Aplicación Java jnlp bloqueada por la configuración de seguridad

Tengo una aplicación java empresarial que tiene muchos archivos jar que se descargan al caché jvm del cliente mediante un archivo jnlp. Cuando inicio la aplicación, obtengo el siguiente seguimiento de pila en la Consola Java:

        Exception in thread "AWT-EventQueue-1" java.lang.NullPointerException
at com.sun.deploy.ui.DialogTemplate.imageAvailable(Unknown Source)
at com.sun.deploy.ui.DialogTemplate.finalImageAvailable(Unknown Source)
at com.sun.deploy.ui.ImageLoader$2.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(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)
       Exception in thread "AWT-EventQueue-1" java.lang.NullPointerException
at com.sun.deploy.ui.DialogTemplate.imageAvailable(Unknown Source)
at com.sun.deploy.ui.DialogTemplate.finalImageAvailable(Unknown Source)
at com.sun.deploy.ui.ImageLoader$2.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(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)
    #### Java Web Start Error:
    #### The Java security settings have prevented this application from running. You may change this behavior in the Java Control Panel.

Mi archivo JNLP es como el siguiente con algunas descripciones censuradas:

<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="1.0+" codebase="http://10.100.10.9/ikarusdelhitest/" href="ikarus.jnlp">
<information>
    <title>ikarus</title>
    <vendor>my company</vendor>
    <homepage href="http://www.mycompanyaddress.com" />
    <description>My enterprise java ee swing application</description>
    <icon href="ikarus.jpg" />
    <offline-allowed />
</information>
<security>
    <all-permissions />
</security> 
<resources> 
    <jar href="jars/ikarus/ikarusClient.jar" />
    <jar href="jars/ikarus/ikarusDelegators.jar" />
    <jar href="jars/ikarus/clientRules.jar" />
    <jar href="jars/ikarus/ruleImps.jar" />
    <jar href="jars/ikarus/ikarusUtil.jar" />
    <jar href="jars/ikarus/ikarusResources.jar" />
    <jar href="jars/ikarus/domain.jar" />
    <jar href="jars/ikarus/domain_repository.jar" />
    <jar href="jars/ikarus/domain_service.jar" />
    <jar href="jars/ikarus/app_repository.jar" />
    <jar href="jars/ikarus/app_service.jar" />
    <jar href="jars/ikarus/infrastructure.jar" />
    <jar href="jars/ikarus/integration_domain.jar" />
    <jar href="jars/jboss_ejb_auth/ejb3-persistence.jar" />
    <jar href="jars/jboss_ejb_auth/jboss-ejb3x.jar" />
    <jar href="jars/jboss_ejb_auth/jbossall-client.jar" />
    <jar href="jars/jasper/commons-beanutils-1.8.0.jar" />
    <jar href="jars/jasper/commons-collections-3.2.1.jar" />
    <jar href="jars/jasper/commons-digester-1.7.jar" />
    <jar href="jars/jasper/commons-logging-1.1.jar" />
    <jar href="jars/jasper/iText-2.1.0.jar" />
    <jar href="jars/jasper/jasperreports-3.6.0.jar" />
    <jar href="jars/jasper/poi-3.2-FINAL-20081019.jar" />
    <property name="jnlp.localization" value="Delhi"/>
</resources>
<application-desc main-class="com.celebi.ikarus.main.Ikarus" />

También tenga en cuenta que obtengo algunos detalles de excepción diferentes en el panel de información adicional:

com.sun.deploy.security.BlockedException: The Java security settings have prevented this application from running. You may change this behavior in the Java Control Panel.
at com.sun.deploy.security.SandboxSecurity.showBlockedDialog(Unknown Source)
at com.sun.javaws.security.AppPolicy.grantUnrestrictedAccess(Unknown Source)
at com.sun.javaws.security.AppPolicy.addPermissions(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.getTrustedCodeSources(Unknown Source)
at com.sun.deploy.security.CPCallbackHandler$ParentCallback.strategy(Unknown Source)
at com.sun.deploy.security.CPCallbackHandler$ParentCallback.openClassPathElement(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getJarFile(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.access$1000(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.ensureOpen(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.<init>(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source)
at java.net.URLClassLoader$1.run(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.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(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 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.SecurityException: Invalid Permissions value: all-permissions  
at com.sun.deploy.security.DeployManifestChecker.verify(Unknown Source)
at com.sun.deploy.security.DeployManifestChecker.verify(Unknown Source)
... 39 more

No tengo ninguna restricción de seguridad para la seguridad en el panel de control de Java. Está en el nivel medio de la siguiente manera:

Gracias por cualquier ayuda

Nueva edición: obtuve más explicaciones de stacktrace cuando intenté ejecutar este jnlp desde una máquina jvm 1.6 de la siguiente manera:

java.lang.NoClassDefFoundError: javax/ejb/EJBAccessException
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.getMethod0(Unknown Source)
at java.lang.Class.getMethod(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.ClassNotFoundException: javax.ejb.EJBAccessException
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)

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