HibernateConfigPlugin generates empty xml for all properties <hibernate-configuration> <session-factory> <property name="hibernate.connection.driver_class"/> <property name="hibernate.connection.url"/> <property name="hibernate.connection.username"/> <property name="hibernate.connection.password"/> <property name="hibernate.connection.autocommit"/> <property name="hibernate.connection.autoReconnect"/> <property name="hibernate.connection.autoReconnectForPools"/> <property name="hibernate.connection.is-connection-validation-required"/> <property name="hibernate.connection.pool_size"/> <property name="hibernate.jdbc.fetch_size"/> <property name="hibernate.jdbc.batch_size"/> <property name="hibernate.jdbc.batch_versioned_data"/> <property name="hibernate.jdbc.use_scrollable_resultset"/> <property name="hibernate.jdbc.use_streams_for_binary"/> <property name="hibernate.jdbc.use_get_generated_keys"/> <property name="hibernate.connection.isolation"/> <property name="hibernate.cglib.use_reflection_optimizer"/> <property name="hibernate.connection.provider_class"/> <property name="hibernate.connection.datasource"/> <property name="hibernate.jndi.url"/> <property name="hibernate.jndi.class"/> <property name="hibernate.dialect"/> <property name="hibernate.default_schema"/> <property name="hibernate.default_entity_mode"/> <property name="hibernate.session_factory_name"/> <property name="hibernate.use_outer_join"/> <property name="hibernate.max_fetch_depth"/> <property name="hibernate.cache.provider_class"/> <property name="hibernate.cache.use_minimal_puts"/> <property name="hibernate.cache.use_query_cache"/> <property name="hibernate.cache.query_cache_factory"/> <property name="hibernate.cache.region_prefix"/> <property name="hibernate.transaction.factory_class"/> <property name="jta.UserTransaction"/> <property name="hibernate.transaction.manager_lookup_class"/> <property name="hibernate.query.substitutions"/> <property name="hibernate.show_sql"/> <property name="hibernate.hbm2ddl.auto">true</property> <property name="hibernate.c3p0.max_size"/> <property name="hibernate.c3p0.min_size"/> <property name="hibernate.c3p0.timeout"/> <property name="hibernate.c3p0.max_statements"/> <property name="hibernate.c3p0.idle_test_period"/> <property name="hibernate.c3p0.acquire_increment"/> <mapping resource="a/b/ABC.hbm.xml"/> </session-factory> </hibernate-configuration> It seems jelly-tag: <j:if test="${!empty(plugin.Transactionmanagerlookup)}"> fails to detect empty properties Tried with: <j:if test="${plugin.notEmpty(plugin.Transactionmanagerlookup)}"> public class HibernateConfigPlugin extends AbstractHibernatePlugin { ... public boolean notEmpty(Object object) { if (object != null) { if (object instanceof String) { return ((CharSequence) object).length() > 0; } return true; } return false; } ... } And it generates the config correctly. Espen