jDBI is a thin wrapper around JDBC, designed to be convenient for the programmer instead of whatever JDBC was designed to be conveninent for =) It uses the Java collections framework for query results, provides a convenient means of externalizing sql statements, and provides named parameter support for any database being used, hooks into the various transaction systems (local, BMT, CMT, Spring, etc), and is hopefully useful.
All 1.2.5 does is use the batch api for handling scripts. This allows for DDL in scripts, which is kinda handy, as a lot of databases don't allow DDL in prepared statements (which the default jDBI statement execution uses).
Go have fun with it!
Coming soon: using the externalized SQL system for scripts instead of the current specialized script handler.