Help! can't start my servlet app any more !

Hello all,

I have an enhydra web server running behind an apache server with  
enhydra director.
The server is running for more than one year now without any problem.
I am using enhydra 5.0, the jdk 1.3.1 and PostgresQL 7.3.4 for storing  
the data on a debian unstable.

Today, I recompiled my enhydra app and relaunched it and I was very  
surprised to see that
the enhydra servlet does not want to start any more. I rebooted the  
server, relaunched apache
and I can compile my app without any problems, so the error might come  
from a configuration problem.

I updated my tools via debian apt-get, apache was also updated, it  
might come from that !

Thank you for your help !

Mathieu

Error: 500
Internal Servlet Error:
javax.servlet.ServletException: Unable to change application to running  
state
caused by class java.lang.NoClassDefFoundError: javax/net/ssl/SSLSocket
         at  
com.lutris.appserver.server.httpPresentation.servlet.HttpPresentationSer 
vlet.throwServletException(Unknown Source)
         at  
com.lutris.appserver.server.httpPresentation.servlet.HttpPresentationSer 
vlet.ensureAppIsRunning(Unknown Source)
         at  
com.lutris.appserver.server.httpPresentation.servlet.HttpPresentationSer 
vlet.serviceDirect(Unknown Source)
         at  
com.lutris.appserver.server.httpPresentation.servlet.HttpPresentationSer 
vlet.service(Unknown Source)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)