Re: NPE on MapKey maps

2018-09-08 Thread Matthew Broadhead
sorry i missed the point about the mapkey. On 08/09/18 10:26, Matthew Broadhead wrote: If it is set to cascade then this should work? MapKeyParent parent = new MapKeyParent(); parent.setChildren(new ArrayList<>()); MapKeyChild child = new MapKeyChild(); child.setParent(parent); parent.getChildre

Re: NPE on MapKey maps

2018-09-08 Thread Matthew Broadhead
If it is set to cascade then this should work? MapKeyParent parent = new MapKeyParent(); parent.setChildren(new ArrayList<>()); MapKeyChild child = new MapKeyChild(); child.setParent(parent); parent.getChildren().add(child); em.persist(parent); em.flush(); On 08/09/18 02:42, Pawel Veselov wrote:

NPE on MapKey maps

2018-09-07 Thread Pawel Veselov
Hello. I ran into this problem, and I'm not sure what the right answer is. Consider just two entities (I've gutted them to the pieces that are relevant, I tried this on corresponding classes in org.apache.openjpa.persistence.relations package, openjpa-persistence-jdbc module): public class MapKey