Hi team, merging/rebasing the migration PR, I am getting one test failure, with a weird "SQLGrammarException: could not prepare statement" error, when merging the categories: ------------------------------------------------------------------------------- Test set: org.jboss.aerogear.unifiedpush.jpa.InstallationDaoTest ------------------------------------------------------------------------------- Tests run: 34, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 2.519 sec <<< FAILURE! mergeCategories(org.jboss.aerogear.unifiedpush.jpa.InstallationDaoTest) Time elapsed: 0.041 sec <<< ERROR! javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not prepare statement at org.apache.derby.iapi.error.StandardException.newException(Unknown Source) at org.apache.derby.impl.sql.compile.NextSequenceNode.bindExpression(Unknown Source) at org.apache.derby.impl.sql.compile.ValueNode.bindExpression(Unknown Source) at org.apache.derby.impl.sql.compile.ResultColumn.bindExpression(Unknown Source) at org.apache.derby.impl.sql.compile.ResultColumnList.bindExpressions(Unknown Source) at org.apache.derby.impl.sql.compile.RowResultSetNode.bindExpressions(Unknown Source) at org.apache.derby.impl.sql.compile.DMLStatementNode.bindExpressions(Unknown Source) at org.apache.derby.impl.sql.compile.DMLStatementNode.bind(Unknown Source) at org.apache.derby.impl.sql.compile.CursorNode.bindStatement(Unknown Source) at org.apache.derby.impl.sql.GenericStatement.prepMinion(Unknown Source) at org.apache.derby.impl.sql.GenericStatement.prepare(Unknown Source) at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(Unknown Source) at org.apache.derby.impl.jdbc.EmbedPreparedStatement.<init>(Unknown Source) at org.apache.derby.impl.jdbc.EmbedPreparedStatement20.<init>(Unknown Source) at org.apache.derby.impl.jdbc.EmbedPreparedStatement30.<init>(Unknown Source) at org.apache.derby.impl.jdbc.EmbedPreparedStatement40.<init>(Unknown Source) at org.apache.derby.jdbc.Driver40.newEmbedPreparedStatement(Unknown Source) at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$1.doPrepare(StatementPreparerImpl.java:96) at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:183) at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareStatement(StatementPreparerImpl.java:83) at org.hibernate.id.SequenceGenerator.generateHolder(SequenceGenerator.java:120) at org.hibernate.id.SequenceHiLoGenerator$1.getNextValue(SequenceHiLoGenerator.java:81) at org.hibernate.id.enhanced.OptimizerFactory$LegacyHiLoAlgorithmOptimizer.generate(OptimizerFactory.java:399) at org.hibernate.id.SequenceHiLoGenerator.generate(SequenceHiLoGenerator.java:78) at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:117) at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:78) at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:208) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:151) at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:762) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:755) at org.hibernate.ejb.engine.spi.EJB3CascadingAction$1.cascade(EJB3CascadingAction.java:53) at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:396) at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:339) at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:207) at org.hibernate.engine.internal.Cascade.cascadeCollectionElements(Cascade.java:426) at org.hibernate.engine.internal.Cascade.cascadeCollection(Cascade.java:366) at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:342) at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:207) at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:164) at org.hibernate.event.internal.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:449) at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:292) at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:192) at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:135) at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:78) at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:208) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:151) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:78) at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:772) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:746) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:750) at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:875) at sun.reflect.GeneratedMethodAccessor163.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.jboss.weld.bean.proxy.AbstractBeanInstance.invoke(AbstractBeanInstance.java:44) at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:105) at org.jboss.weld.proxies.EntityManager$1406262522$Proxy$_$$_WeldClientProxy.persist(EntityManager$1406262522$Proxy$_$$_WeldClientProxy.java) at org.jboss.aerogear.unifiedpush.jpa.dao.impl.JPABaseDao.create(JPABaseDao.java:55) at org.jboss.aerogear.unifiedpush.jpa.InstallationDaoTest.mergeCategories(InstallationDaoTest.java:234) Looks like the error is due to the sequence table, added to ORM: https://github.com/aerogear/aerogear-unifiedpush-server/commit/d9a7ab913d... Now, the sequence table is part of the DDL script: https://github.com/matzew/aerogear-unifiedpush-server/blob/Migration_merg... But it's missing the dataset XML files for DBunit, however Erik Jan tried adding it here: https://github.com/edewit/aerogear-unifiedpush-server/commit/93a6a9af0b00... But that also does not help ;-( However, Gunnar (from Hibernate team) thinks the problem is that this ddl creates sequence as table, where SequenceGenerator is expecting an actual sequence I think I am a bit over asked here, from both DBUnit and the migration aspects. Therefore any feedback on these issues is more than welcome :-) Thanks a lot! -Matthias -- Matthias Wessendorf blog: http://matthiaswessendorf.wordpress.com/ sessions: http://www.slideshare.net/mwessendorf twitter: http://twitter.com/mwessendorf