fixing model for jpa

...n/java/org/etsi/osl/tmf/pcm620/model/ProductOffering.java

...n/java/org/etsi/osl/tmf/pim637/model/PriceAlteration.java

src/main/java/org/etsi/osl/tmf/pim637/model/Product.java

...main/java/org/etsi/osl/tmf/pim637/model/ProductPrice.java

...java/org/etsi/osl/tmf/pim637/model/ProductRefOrValue.java

...va/org/etsi/osl/tmf/pim637/model/ProductRelationship.java

src/main/java/org/etsi/osl/tmf/pim637/model/ProductTerm.java

...org/etsi/osl/tmf/pim637/model/RelatedPlaceRefOrValue.java

...n/java/org/etsi/osl/tmf/po622/model/AgreementItemRef.java

...mf/po622/model/ProductOrderAttributeValueChangeEvent.java

...2/model/ProductOrderAttributeValueChangeNotification.java

...org/etsi/osl/tmf/po622/model/ProductOrderCreateEvent.java

...i/osl/tmf/po622/model/ProductOrderCreateNotification.java

...org/etsi/osl/tmf/po622/model/ProductOrderDeleteEvent.java

...i/osl/tmf/po622/model/ProductOrderDeleteNotification.java

...n/java/org/etsi/osl/tmf/po622/model/ProductOrderItem.java

...java/org/etsi/osl/tmf/po622/model/ProductOrderMapper.java

...tsi/osl/tmf/po622/model/ProductOrderStateChangeEvent.java

.../tmf/po622/model/ProductOrderStateChangeNotification.java

...org/etsi/osl/tmf/po622/model/RelatedProductOrderItem.java