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Thiago H. de Paula Figueiredo commented on TAPESTRY-2769: --------------------------------------------------------- This should be posted to the TAP5 project, as TAPESTRY is used to track Tapestry 4. This bug is invalid, as you shouldn't add JARs with Tapestry-IoC modules that you don't use in the classpath. That's how Tapestry-IoC works: you don't need to configure anything for a Tapestry-IoC module to be loaded and be ready to work. Please post your questions in the Tapestry mailing list before posting a JIRA. > Exception constructing service 'ValueEncoderSource' > --------------------------------------------------- > > Key: TAPESTRY-2769 > URL: https://issues.apache.org/jira/browse/TAPESTRY-2769 > Project: Tapestry > Issue Type: Bug > Affects Versions: 5.1 > Reporter: Tobias Marx > Priority: Minor > > Exception constructing service 'ValueEncoderSource': Error invoking service > builder method > org.apache.tapestry5.services.TapestryModule.buildValueEncoderSource(Map, > InvalidationEventHub) (at TapestryModule.java:1910) (for service > 'ValueEncoderSource'): Error invoking service contribution method > org.apache.tapestry5.hibernate.HibernateModule.contributeValueEncoderSource(MappedConfiguration, > boolean, HibernateSessionSource, Session, TypeCoercer, PropertyAccess, > LoggerSource): Exception constructing service 'HibernateSessionSource': Error > invoking service builder method > org.apache.tapestry5.hibernate.HibernateCoreModule.buildHibernateSessionSource(Logger, > List, RegistryShutdownHub) (at HibernateCoreModule.java:123) (for service > 'HibernateSessionSource'): JDBC Driver class not found: > org.gjt.mm.mysql.Driver. > If tapestry-hibernate is added as a dependency - even when not used - > Tapestry crashes if no database driver is found - and a nasty server error > occurs. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.