here I've also posted some of the exceptions. I'm not really sure if the problem is the closing of the database, maybe there are other things that don't work.
at com.db4o.query.Predicate.appliesTo(Unknown Source) at com.db4o.internal.query.PredicateEvaluation.evaluate(Unknown Source) at com.db4o.internal.Platform4.evaluationEvaluate(Unknown Source) at com.db4o.internal.query.processor.QConEvaluation.visit(Unknown Source) at com.db4o.foundation.Tree.traverse(Unknown Source) at com.db4o.internal.query.processor.QCandidates.filter(Unknown Source) at com.db4o.internal.query.processor.QCon.evaluateEvaluations(Unknown Source) at com.db4o.internal.query.processor.QCandidates.evaluate(Unknown Source) at com.db4o.internal.query.processor.QCandidates.execute(Unknown Source) at com.db4o.internal.query.processor.QQueryBase.executeLocal(Unknown Source) at com.db4o.internal.query.result.IdListQueryResult.loadFromQuery(Unknown Source) at com.db4o.internal.LocalObjectContainer.executeQuery(Unknown Source) at com.db4o.internal.query.processor.QQueryBase.getQueryResult(Unknown Source) at com.db4o.internal.query.processor.QQueryBase.execute(Unknown Source) at com.db4o.internal.query.NativeQueryHandler.execute(Unknown Source) at com.db4o.internal.PartialObjectContainer.query(Unknown Source) at com.db4o.internal.PartialObjectContainer.query(Unknown Source)
