Unable to start process - NULL not allowed for column "PK

Hi,

I have the following error when trying to start the 'Hiring' process (see stacktrace below). I am using file based H2 datasource and EAP 6.1.

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11:45:12,082 ERROR [stderr] (http-/0.0.0.0:8080-1) Caused by: org.hibernate.exception.ConstraintViolationException: could not execute statement
11:45:12,082 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:128)
11:45:12,082 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
11:45:12,083 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
11:45:12,083 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
11:45:12,083 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:136)
11:45:12,083 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96)
11:45:12,084 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58)
11:45:12,084 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2966)
11:45:12,084 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3477)
11:45:12,084 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)
11:45:12,085 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362)
11:45:12,085 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:203)
11:45:12,086 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:183)
11:45:12,086 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:167)
11:45:12,086 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:321)
11:45:12,086 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:286)
11:45:12,087 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:192)
11:45:12,087 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125)
11:45:12,087 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:78)
11:45:12,087 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:208)
11:45:12,087 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:151)
11:45:12,088 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:78)
11:45:12,088 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:852)
11:45:12,088 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:826)
11:45:12,088 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:830)
11:45:12,088 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:875)
11:45:12,089 ERROR [stderr] (http-/0.0.0.0:8080-1) ... 64 more
11:45:12,089 ERROR [stderr] (http-/0.0.0.0:8080-1) Caused by: org.h2.jdbc.JdbcSQLException: La columna "PK" no permite valores nulos (NULL)
11:45:12,090 ERROR [stderr] (http-/0.0.0.0:8080-1) NULL not allowed for column "PK"; SQL statement:
11:45:12,090 ERROR [stderr] (http-/0.0.0.0:8080-1) insert into ProcessInstanceLog (id, duration, end_date, externalId, user_identity, outcome, parentProcessInstanceId, processId, processInstanceId, processName, processVersion, start_date, status) values (null, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) [23502-168]
11:45:12,090 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.message.DbException.getJdbcSQLException(DbException.java:329)
11:45:12,090 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.message.DbException.get(DbException.java:169)
11:45:12,090 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.message.DbException.get(DbException.java:146)
11:45:12,091 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.table.Column.validateConvertUpdateSequence(Column.java:293)
11:45:12,091 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.table.Table.validateConvertUpdateSequence(Table.java:689)
11:45:12,091 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.command.dml.Insert.insertRows(Insert.java:120)
11:45:12,091 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.command.dml.Insert.update(Insert.java:84)
11:45:12,091 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.command.CommandContainer.update(CommandContainer.java:75)
11:45:12,092 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.command.Command.executeUpdate(Command.java:230)
11:45:12,092 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.jdbc.JdbcPreparedStatement.executeUpdateInternal(JdbcPreparedStatement.java:156)
11:45:12,092 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.h2.jdbc.JdbcPreparedStatement.executeUpdate(JdbcPreparedStatement.java:142)
11:45:12,092 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeUpdate(WrappedPreparedStatement.java:493)
11:45:12,092 ERROR [stderr] (http-/0.0.0.0:8080-1) at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:133)
11:45:12,093 ERROR [stderr] (http-/0.0.0.0:8080-1) ... 85 more
11:45:12,093 ERROR [stderr] (http-/0.0.0.0:8080-1) *** Message delivery failure ***