I have installed JSSE (following the instructions as carefully as I could, since network security is somewhat Greek to me) and included Carl's code in my class. The second line (Security.addProvider()) generates the following error: NoClassDefFoundError: com/sun/net/ssl/internal/ssl/Provider The jar files are installed in <home>/lib/security, which is in my Classpath. The java.security.security file has been updated as the instructions direct. I don't know what else to do to make my program "see" the JSSE jar files. Any suggestions?