[SOLVED] JRE 1.7.0_51-b13 and signed applet

I've bought a Trusted Certificate to sign my applets, in order to prevent warnings and issues introduced by last release of Oracle JRE (1.7.0.51).

Everything fine, except with an applet that use also external jars (in particular, axis2-1.5.4.jar)

I've signed also this jar with my new certificate, but i always obtain:

java.lang.RuntimeException: java.lang.NoClassDefFoundError: org/apache/axis2/databinding/ADBBean
at com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter.instantiateApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Caused by: java.lang.NoClassDefFoundError: org/apache/axis2/databinding/ADBBean
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 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 sun.plugin2.applet.Plugin2ClassLoader.defineClassHelper(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.access$100(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)
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.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter$1.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.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.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)
Caused by: java.lang.ClassNotFoundException: org.apache.axis2.databinding.ADBBean
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)
... 42 more

during applet load. What's wrong?

UPDATE: this is my applet code.

<object width="200" height="200" code="AeDPeA2WS.class"    CODEBASE="/<path>/AeDPeA2WS/$FILE" name="AeDPeA2WS">
<param name="CODEBASE" value="/<path>/AeDPeA2WS/$FILE">
<param name="code" value="AeDPeA2WS.class">
<param name="name" value="AeDPeA2WS">
<PARAM NAME="MAYSCRIPT" VALUE="true">

<param name="archive" value="AeDPeA2WS.jar,axis2-kernel-1.4.1.jar,axis2-1.5.4.jar,activation-1.1.jar,axiom-api-1.2.10.jar,axis-wsdl4j-1.2.jar,backport-util-concurrent-3.1.jar,axiom-dom-1.2.10.jar,axiom-impl-1.2.10.jar,commons-codec-1.4.jar,commons-httpclient-3.1.jar,commons-logging-1.1.1.jar,mail-1.4.jar,neethi-2.0.4.jar,woden-api-1.0M8.jar,XmlSchema-1.4.3.jar">

UPDATE 2

I tried to isolate every single part of code, adding it step-by-step. I found that the problem is when i declare this method:

private Base64Binary setMTOMEncoding (DataHandler dh) {
    Base64Binary bb = new Base64Binary();
    bb.setBase64Binary( dh );
    ContentType_type0 ct = new ContentType_type0();
    ct.setContentType_type0( dh.getContentType() );
    bb.setContentType( ct );
    return bb;
}

that's defined in this way:

    public static class Base64Binary implements org.apache.axis2.databinding.ADBBean{
    ......

this give me the exception: any idea?