<applet code="org.jdesktop.applet.util.JNLPAppletLauncher"
        width="100%"
        height="100%"
        codebase="."
        archive="http://download.java.net/media/applet-launcher/applet-launcher.jar,
                  http://download.java.net/media/jogl/builds/archive/jsr-231-webstart-current/jogl.jar,
                  http://download.java.net/media/gluegen/webstart/gluegen-rt.jar,
                  build/5c3a5dba235e2f70fab2e5905f65956afa8171b9/mpfc.mo.jar,
                  build/5c3a5dba235e2f70fab2e5905f65956afa8171b9/mpfc.map.jar,
                  build/5c3a5dba235e2f70fab2e5905f65956afa8171b9/mpfc.gl.jar,
                  build/5c3a5dba235e2f70fab2e5905f65956afa8171b9/mpfc.common.jar,
                  build/5c3a5dba235e2f70fab2e5905f65956afa8171b9/mpfc.tracking.jar,
                  build/5c3a5dba235e2f70fab2e5905f65956afa8171b9/mpfc.localisation.jar"> 
    <param name="codebase_lookup"       value="false">
    <param name="noddraw.check"         value="false">
    <param name="progressbar"           value="true">
    <param name="jnlpNumExtensions"     value="1">
    <param name="jnlpExtension1"        value="http://download.java.net/media/jogl/builds/archive/jsr-231-webstart-current/jogl.jnlp">
    <param name="noddraw.check"         value="true">
    <param name="noddraw.check.silent"  value="true">
    <param name="separate_jvm"          value="true">
    <param name="java_arguments"        value="-Xmx256m -Dsun.java2d.noddraw=true">
    <param name="subapplet.classname"   value="mpfc.mo.MOApplet">
    <param name="subapplet.displayname" value="MapsOnline">
    <param name="version"               value="1.0.15.0" >
</applet>

java.lang.ClassNotFoundException: mpfc.mo.MOApplet
        at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
        at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
        at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
        at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        at org.jdesktop.applet.util.JNLPAppletLauncher.startSubApplet(JNLPAppletLauncher.java:1914)
        at org.jdesktop.applet.util.JNLPAppletLauncher.access$200(JNLPAppletLauncher.java:658)
        at org.jdesktop.applet.util.JNLPAppletLauncher$5.run(JNLPAppletLauncher.java:1269)
        at java.awt.event.InvocationEvent.dispatch(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)

http://forum.processing.org/topic/is-jre-6-update-21-working-with-processing-applet
http://forums.sun.com/thread.jspa?threadID=5447236
http://www.shapeways.com/forum/index.php?t=msg&th=3246
...