Put JDBC driver JARs here and add them to the Bundle-ClassPath header in 
META-INF/MANIFEST.MF, for example like this:

Bundle-ClassPath: .,
 lib/postgresql-9.1-902.jdbc4.jar,
 lib/mysql-connector-java-5.1.20-bin.jar
 
JDBC-4-compliant drivers should be found automatically after a restart. 
For other drivers you must add the driver class name to the SMILA-JDBC 
header in META-INF/MANIFEST.MF.