And here's the log output in case someone has a hint: 2009-10-20 12:18:52,379 DEBUG org.hibernate.jdbc.JDBCContext - successfully registered Synchronization | 2009-10-20 12:18:52,379 DEBUG org.hibernate.impl.SessionImpl - opened session at timestamp: 5144700241424384 | 2009-10-20 12:18:52,379 DEBUG org.hibernate.jdbc.AbstractBatcher - about to open PreparedStatement (open PreparedStatements: 0, globally: 0) | 2009-10-20 12:18:52,379 DEBUG org.hibernate.jdbc.ConnectionManager - opening JDBC connection | 2009-10-20 12:18:52,380 DEBUG org.hibernate.SQL - select hibernate_sequence.nextval from dual | 2009-10-20 12:18:52,381 DEBUG org.hibernate.id.SequenceGenerator - Sequence identifier generated: 103 | 2009-10-20 12:18:52,381 DEBUG org.hibernate.jdbc.AbstractBatcher - about to close PreparedStatement (open PreparedStatements: 1, globally: 1) | 2009-10-20 12:18:52,381 DEBUG org.hibernate.jdbc.ConnectionManager - aggressively releasing JDBC connection | 2009-10-20 12:18:52,381 DEBUG org.hibernate.jdbc.ConnectionManager - releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)] | 2009-10-20 12:18:52,381 DEBUG org.hibernate.event.def.AbstractSaveEventListener - generated identifier: 103, using strategy: org.hibernate.id.SequenceGenerator | 2009-10-20 12:18:52,382 DEBUG org.hibernate.jdbc.AbstractBatcher - about to open PreparedStatement (open PreparedStatements: 0, globally: 0) | 2009-10-20 12:18:52,382 DEBUG org.hibernate.jdbc.ConnectionManager - opening JDBC connection | 2009-10-20 12:18:52,382 DEBUG org.hibernate.SQL - select hibernate_sequence.nextval from dual | 2009-10-20 12:18:52,383 DEBUG org.hibernate.id.SequenceGenerator - Sequence identifier generated: 104 | 2009-10-20 12:18:52,383 DEBUG org.hibernate.jdbc.AbstractBatcher - about to close PreparedStatement (open PreparedStatements: 1, globally: 1) | 2009-10-20 12:18:52,393 DEBUG org.hibernate.jdbc.ConnectionManager - aggressively releasing JDBC connection | 2009-10-20 12:18:52,393 DEBUG org.hibernate.jdbc.ConnectionManager - releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)] | 2009-10-20 12:18:52,393 DEBUG org.hibernate.event.def.AbstractSaveEventListener - generated identifier: 104, using strategy: org.hibernate.id.SequenceGenerator | 2009-10-20 12:18:52,394 DEBUG .hibernate.event.def.AbstractFlushingEventListener - processing flush-time cascades | 2009-10-20 12:18:52,396 DEBUG .hibernate.event.def.AbstractFlushingEventListener - dirty checking collections | 2009-10-20 12:18:52,396 DEBUG org.hibernate.engine.Collections - Collection found: [org.jbpm.pvm.internal.repository.DeploymentImpl.resources#103], was: [<unreferenced>] (initialized) | 2009-10-20 12:18:52,396 DEBUG .hibernate.event.def.AbstractFlushingEventListener - Flushed: 2 insertions, 0 updates, 0 deletions to 2 objects | 2009-10-20 12:18:52,396 DEBUG .hibernate.event.def.AbstractFlushingEventListener - Flushed: 1 (re)creations, 0 updates, 0 removals to 1 collections | 2009-10-20 12:18:52,398 DEBUG org.hibernate.pretty.Printer - listing entities: | 2009-10-20 12:18:52,398 DEBUG org.hibernate.pretty.Printer - org.jbpm.pvm.internal.lob.Lob{blob=org.hibernate.lob.SerializableBlob@139160e, dbid=104, dbversion=0} | 2009-10-20 12:18:52,398 DEBUG org.hibernate.pretty.Printer - org.jbpm.pvm.internal.repository.DeploymentImpl{timestamp=0, resources=[org.jbpm.pvm.internal.lob.Lob#104], name=null, objectProperties=nul | l, state=active, dbid=103} | 2009-10-20 12:18:52,401 DEBUG org.hibernate.jdbc.AbstractBatcher - about to open PreparedStatement (open PreparedStatements: 0, globally: 0) | 2009-10-20 12:18:52,401 DEBUG org.hibernate.jdbc.ConnectionManager - opening JDBC connection | 2009-10-20 12:18:52,401 DEBUG org.hibernate.SQL - insert into JBPM4_DEPLOYMENT (NAME_, TIMESTAMP_, STATE_, DBID_) values (?, ?, ?, ?) | 2009-10-20 12:18:52,401 DEBUG org.hibernate.jdbc.AbstractBatcher - Executing batch size: 1 | 2009-10-20 12:18:52,403 DEBUG org.hibernate.jdbc.Expectations - success of batch update unknown: 0 | 2009-10-20 12:18:52,403 DEBUG org.hibernate.jdbc.AbstractBatcher - about to close PreparedStatement (open PreparedStatements: 1, globally: 1) | 2009-10-20 12:18:52,403 DEBUG org.hibernate.jdbc.ConnectionManager - skipping aggressive-release due to flush cycle | 2009-10-20 12:18:52,403 DEBUG org.hibernate.jdbc.AbstractBatcher - about to open PreparedStatement (open PreparedStatements: 0, globally: 0) | 2009-10-20 12:18:52,403 DEBUG org.hibernate.SQL - insert into JBPM4_LOB (DBVERSION_, BLOB_VALUE_, DBID_) values (?, ?, ?) | 2009-10-20 12:18:52,404 DEBUG org.hibernate.jdbc.AbstractBatcher - Executing batch size: 1 | 2009-10-20 12:18:52,407 DEBUG org.hibernate.jdbc.Expectations - success of batch update unknown: 0 | 2009-10-20 12:18:52,407 DEBUG org.hibernate.jdbc.AbstractBatcher - about to close PreparedStatement (open PreparedStatements: 1, globally: 1) | 2009-10-20 12:18:52,407 DEBUG org.hibernate.jdbc.ConnectionManager - skipping aggressive-release due to flush cycle | 2009-10-20 12:18:52,407 DEBUG e.persister.collection.AbstractCollectionPersister - Inserting collection: [org.jbpm.pvm.internal.repository.DeploymentImpl.resources#103] | 2009-10-20 12:18:52,407 DEBUG org.hibernate.jdbc.AbstractBatcher - about to open PreparedStatement (open PreparedStatements: 0, globally: 0) | 2009-10-20 12:18:52,407 DEBUG org.hibernate.SQL - update JBPM4_LOB set DEPLOYMENT_=?, NAME_=? where DBID_=? | 2009-10-20 12:18:52,409 DEBUG e.persister.collection.AbstractCollectionPersister - done inserting collection: 1 rows inserted | 2009-10-20 12:18:52,409 DEBUG org.hibernate.jdbc.AbstractBatcher - Executing batch size: 1 | 2009-10-20 12:18:52,410 DEBUG org.hibernate.jdbc.Expectations - success of batch update unknown: 0 | 2009-10-20 12:18:52,410 DEBUG org.hibernate.jdbc.AbstractBatcher - about to close PreparedStatement (open PreparedStatements: 1, globally: 1) | 2009-10-20 12:18:52,411 DEBUG org.hibernate.jdbc.ConnectionManager - skipping aggressive-release due to flush cycle | 2009-10-20 12:18:52,412 DEBUG org.hibernate.jdbc.ConnectionManager - aggressively releasing JDBC connection | 2009-10-20 12:18:52,412 DEBUG org.hibernate.jdbc.ConnectionManager - releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)] | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4261205#... 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