Hi Folks,

I already posted questions concerning this subject in former time in
other newsgroups, but there was no satisfying help yet. So you are my
last chance.

I wrote two Java-Applications that shall communicate over a JSSE
SSL-Secured connection.

The socket-Code (Server) looks like:

System.setProperty("javax.net.ssl.keyStore","KEYSTORE");
System.setProperty("javax.net.ssl.keyStorePassword","changeit");
SSLServerSocketFactory sslserversocketfactory =
(SSLServerSocketFactory)SSLServerSocketFactory.getDefault();
SSLServerSocket sslserversocket =
(SSLServerSocket)sslserversocketfactory.createServerSocket(9998);

System.out.println("Server listens on Port 9998");

The Client-Code to connect looks like:

SSLSocketFactory sslsocketfactory =
(SSLSocketFactory)SSLSocketFactory.getDefault();
      SSLSocket sslsocket =
(SSLSocket)sslsocketfactory.createSocket("192.168.100.200",9998);
      socket = sslsocket;
      status =  sslsocket.isConnected();

Status returns true. So the connedt is successfull. I can also see the
output of the starting thread on the server side.

If a client connects, the server starts a new thread which shall make an
SQL-Statement. The ResultSet shall be saved in a CachedRowSet.

To this point all goes well.

CachedRowSetImpl crs = new CachedRowSetImpl();

    ResultSet rs = lms.werteAbfragen("SELECT * FROM EVENT WHERE
ENTID=60"); //SQL-Query

    crs.populate(rs); //CachedRowSet filled with data
    rs.close();

    OutputStream os = socket.getOutputStream();
    ObjectOutputStream s = new ObjectOutputStream(os); // ERROR OCCURS!!

The Sever responses with: Received fatal alert: certificate_unknown
The Client responses with: sun.security.validator.ValidatorException: No
trusted certificate found

Well, I created a truststore with one certificate and put it into the
classes directory.
In the source-code I put the systems-property to find the truststore and
the password.

The handshake is ok - but as soons as I open a ObjectOutputStream (it
doesn't matter if the client or server opens that Streams) the message
comes out.

Hope you can help me, it's so messed up!

Thx a lot - Jan Lendholt