JWS aparentemente não está carregando as bibliotecas

Buenas.

Estou fazendo uma aplicação JWS e estou tendo problemas com as bibliotecas que devem ser carregadas junto com o .jar principal.

O jnlp é o seguinte:

<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.5+" codebase="http://192.168.0.245/Repositorio/" href="tasy.jnlp">
  <information>
    <title>Tasy</title>
    <vendor>Wheb Sistemas</vendor>
    <homepage href="http://www.site.com.br" />
    <description>Tasy</description>
	<shortcut online="true">
	<desktop/>
        <menu submenu="Tasy"/>
    </shortcut>
    <icon href="figuras/icone.gif"/>
  </information>
  <security>
    <all-permissions />
  </security>
  <resources>
    <j2se version="1.6+" />
    <jar href="TasyCliente.jar" main="true"/>
    <jar href="lib/System.jar"/>
    <jar href="lib/Componentes.jar"/>
  </resources>
  <application-desc main-class="br.com.tasy.cliente.Main" />
</jnlp>

e o erro que me está gerando é o seguinte:

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.NoClassDefFoundError: br/com/tasy/view/WJFrame
	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$000(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at br.com.tasy.system.TasySystem.criarForm(TasySystem.java:52)
	at br.com.tasy.system.TasySystem.montarForm(TasySystem.java:92)
	at br.com.tasy.cliente.Main.<init>(Main.java:24)
	at br.com.tasy.cliente.Main.main(Main.java:39)
	... 9 more
Caused by: java.lang.ClassNotFoundException: br.com.tasy.view.WJFrame
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	... 28 more

Todos os Jar estão assinados.
Alguém tem alguma idéia do que pode ser?

Valew!