NullPointerException in addValueToMiddleTable with @MapKeyJoinColumn -------------------------------------------------------------------- Key: HHH-6802 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6802 Project: Hibernate Core Issue Type: Bug Components: envers Affects Versions: 3.6.8 Environment: Hibernate + Envers 3.6.8 Reporter: Marcin Kobylarz The following mapping: @Audited @OneToMany(mappedBy = "formData", cascade = CascadeType.ALL, orphanRemoval = true) @MapKeyJoinColumn(name = "SPR_FORMULARZ_MODEL_POLE_ID", nullable = false) private Map<FieldModel, FormFieldValue> values = new HashMap<FieldModel, FormFieldValue(); causes the exception while bringing hibernate up: Caused by: java.lang.NullPointerException at org.hibernate.envers.configuration.metadata.CollectionMetadataGenerator.addValueToMiddleTable(CollectionMetadataGenerator.java:458) at org.hibernate.envers.configuration.metadata.CollectionMetadataGenerator.addIndex(CollectionMetadataGenerator.java:398) at org.hibernate.envers.configuration.metadata.CollectionMetadataGenerator.addOneToManyAttached(CollectionMetadataGenerator.java:196) at org.hibernate.envers.configuration.metadata.CollectionMetadataGenerator.addCollection(CollectionMetadataGenerator.java:157) at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.addValue(AuditMetadataGenerator.java:204) at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.addProperties(AuditMetadataGenerator.java:223) at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.generateSecondPass(AuditMetadataGenerator.java:484) at org.hibernate.envers.configuration.EntitiesConfigurator.configure(EntitiesConfigurator.java:115) at org.hibernate.envers.configuration.AuditConfiguration.<init>(AuditConfiguration.java:97) at org.hibernate.envers.configuration.AuditConfiguration.getFor(AuditConfiguration.java:129) at org.hibernate.envers.event.AuditEventListener.initialize(AuditEventListener.java:337) at org.hibernate.event.EventListeners$1.processListener(EventListeners.java:198) at org.hibernate.event.EventListeners.processListeners(EventListeners.java:181) at org.hibernate.event.EventListeners.initializeListeners(EventListeners.java:194) This is caused because queryGeneratorBuilder is null in the addValueToMiddleTable:458 method. We suppose that method AuditedPropertiesReader:289: private void addPropertyMapKey(XProperty property, PropertyAuditingData propertyData) { MapKey mapKey = property.getAnnotation(MapKey.class); if (mapKey != null) { propertyData.setMapKey(mapKey.name()); } } needs improvement to accept also @MapKeyJoinColumn annotation not only @MapKey. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira