Hi,
if the driver's jar file has been renamed, the only way to find out the driver's version is to actually make a connection using that driver.
I would like to suggest to add an entry to the manifest file that shows the driver's version so that it is easier to find that out (e.g. when a .jar file gets bundled within an application)
Something like:
Implementation-Title: PostgreSQL JDBC4 Driver
Implementation-URL: http://jdbc.postgresql.org
Implementation-Version: 8.4-701
What do you think of that?
Regards
Thomas