In some circumstance, Tomcat can reload a Web application without restarting. That can happend when an application directory is updated whereasTomcat is running. This situation may cause frightening troubles for SaadaDB using SQLite :

If you detect the following errors in the Tomcat log : java.lang.UnsatisfiedLinkError : Native Library /private/var/folders/nx/nxFg6ecKH9GWsGPEbEYT9E+++TI/-Tmp-/sqlite-3.6.20.1-libsqlitejdbc.jnilib already loaded in another classloader

followed by

java.sql.SQLException : [SQLITE_ERROR] SQL error or missing database ()

and by

java.sql.SQLException : [SQLITE_CORRUPT] The database disk image is malformed (database disk image is malformed)

Don’t panic :
 Try to stop Tomcat
 If you can’t, use a kill -9
 Make sure it is stopped
 Restart it