Applet to Servlet Https communication

Hi Experts,

i have problem to make https communication possible from an applet to a servlet.
At "servletConn.connect();", i got this error: "javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target"

Through http no problem, i used HttpURLConnection and the applet call http://DEV_TEST/pilotproject/servletcontroller, but for Https (which the url is https://DEV_TEST:81/pilotproject/servletcontroller)... oups! The web server is Glassfish 2.1 and the SSL certificate is a Verisign trial cert (14 days).
HttpsURLConnection servletConn = null;
				
servletConn = (HttpsURLConnection) servlet.openConnection();
servletConn.setRequestMethod("POST");
servletConn.setDoInput(true);
servletConn.setDoOutput(true);
servletConn.setUseCaches(false);
servletConn.setDefaultUseCaches(false);
servletConn.setRequestProperty("Content-type", "application/octet-stream");
servletConn.connect();
 
// Envoyer la requête
ObjectOutputStream output = new ObjectOutputStream(servletConn.getOutputStream());
output.writeObject(pack);
output.flush();
output.close();
 
// Attendre et recevoir la réponse
ObjectInputStream input = new ObjectInputStream(servletConn.getInputStream());
pack = (HttpPackage)input.readObject();
input.close();

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pmrenaudAsked:
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pmrenaudAuthor Commented:
Thanks!
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