Drools

* Cleanup

* Remove usage of deprecated APIs

* Make local variables final

* Remove empty catch blocks

* Remove other various warnings

* JpaPersistenceStatefulSessionTest Cleanup

* Remove usage of deprecated APIs

* Make local variables final

* Remove empty catch blocks

* Remove other various warnings

* [DROOLS-1379] Merge OOPath tests for jpa persistence into existing test case

Create OOPath tests for JPA persistence.

To be exact: merge OOPath test into JpaPersistentStatefulSessionTest as OOPath tests

were already added as a separate test case as a reproducer for [DROOLS-1489]

* [DROOLS-1379] Use AssertJ assertions

* Replace manual insert of int range to KieSession by streams

* Fix missing space

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