[ https://issues.apache.org/jira/browse/JCR-1470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Christophe Lombart reassigned JCR-1470: --------------------------------------- Assignee: Christophe Lombart > NPE in BeanReferenceCollectionConverterImpl on update on empty collection > ------------------------------------------------------------------------- > > Key: JCR-1470 > URL: https://issues.apache.org/jira/browse/JCR-1470 > Project: Jackrabbit > Issue Type: Bug > Components: jackrabbit-ocm > Affects Versions: 1.5 > Environment: mac os leopard, java5 > Reporter: Stephane Landelle > Assignee: Christophe Lombart > > use case : > in the same transaction : > *) retrieve an object that has a collection of references, yet empty > *) add an element in the collection > *) update the object > consequence : > org.apache.jackrabbit.ocm.exception.ObjectContentManagerException: Cannot > insert collection field : authors of class com.weka.content.api.model.Folder; > nested exception is java.lang.NullPointerException: null > java.lang.NullPointerException > at > org.apache.jackrabbit.ocm.manager.collectionconverter.impl.ManageableArrayList$$EnhancerByCGLIB$$8f15dde4.getSize(<generated>) > at > org.apache.jackrabbit.ocm.manager.collectionconverter.impl.BeanReferenceCollectionConverterImpl.addUuidProperties(BeanReferenceCollectionConverterImpl.java:154) > at > org.apache.jackrabbit.ocm.manager.collectionconverter.impl.BeanReferenceCollectionConverterImpl.doUpdateCollection(BeanReferenceCollectionConverterImpl.java:101) > The failing line is in addUuidProperties : > Value[] values = new Value[collection.getSize()]; > It seems the CGlib enhanced collection fails and needs to be initialized > before. > For example, in doUpdateCollection, if I code : > // Delete existing values > if (parentNode.hasProperty(jcrName)) { > parentNode.setProperty(jcrName, (Value[]) null); > } > > if (collection != null) { > collection.getSize(); <<<<<< > } > I get a NPE on collection.getSize(); > but if I code : > if (collection != null) { > collection.getSize(); > } > // Delete existing values > if (parentNode.hasProperty(jcrName)) { > parentNode.setProperty(jcrName, (Value[]) null); > } > everything runs fine?! -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.