For jConnect version 7.0, the following packages are found inside jconn4.jar file for the release build, and jconn4d.jar file for the debug build:
com.sybase.jdbc4.jdbc
com.sybase.jdbc4.tds
com.sybase.jdbc4.timedio
com.sybase.jdbc4.utils
com.sybase.jdbcx
The jConnect driver, com.sybase.jdbc4.jdbc.SybDriver, is located in the com.sybase.jdbc4.jdbc package.