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;    @ManyToOne(fetch=FetchType.LAZY, cascade= CascadeType.ALL)     ... ;    @ManyToOne(fetch=FetchType.EAGER, cascade= CascadeType.ALL)    

:174) at com.objectdb.o.TVS.j(TVS.java:169) at com.objectdb.o.TVS.cascade(TVS.java:156) at com ... (indirectly via cascading) an object with a null primary key. Build 2

of referenced entities was null - but just because that collection was not yet loaded. The cascade type ... on annotations are needed regarding fetch types and cascades. Kind regards btc_es BTC

.class) public class Assignement {     @Id @ManyToOne(cascade = CascadeType ... @ManyToOne(cascade = CascadeType.ALL, optional = false)     private Project project

(targetEntity = ModelElementImpl.class, cascade = {CascadeType.REFRESH}) private ModelElement parent ... class FolderImpl {     @ManyToOne (targetEntity = ModelElementImpl.class, cascade

="0" /> <persist serialization="false" /> <cascade-persist always="auto" on-persist ... " level2="0" />   <persist serialization="false" />   <cascade-persist

;cascade-persist always="auto" on-persist="false" on-commit="true" /> <dirty-tracking arrays ... serialization="false" /> <cascade-persist always="auto" on-persist="false" on-commit="true

; <cascade-persist always = "true" on-persist = "true" on-commit = "true"/> <dirty ... serialization = "false"/>     <cascade-persist always = "true" on-persist = "true

= "owner", cascade = CascadeType.ALL) public List<Element> getOwnedElements ... > @OneToMany(mappedBy = "owner", cascade = CascadeType.ALL, fetch=FetchType.EAGER

static class MyEntity {         @OneToMany(cascade=CascadeType.PERSIST)   ... ; @OneToMany(cascade=CascadeType.PERSIST, fetch = FetchType.EAGER)         Set<