Java Security

Greetings,

I am trying to modify an ftp secure client program written in Java to reuse SSL session when it establishes SSLSocket for ftp passive data connections with a server. It appears that some of the FTP secure servers based on OpenSSL can impose a restriction to allow clients to establish data connection only if the SSL session is reused from the ftp control connection. After running some experiments with JSSE I am noticing that SSL Sessions can be reused only if connecting to the same host at the same port. As soon as I try connecting to a different port, SSL Client does not bother to reuse SSL sessions. Is this a limitation/restriction of JSSE or there is a way to get around this?

Thank you,

Paul