Re: [hibernate-dev] Null-Pointer Exception with 5.2.14

Hi Christian, My model has more than 250 entities big. Here's the code that throws the NLP: Class<?> c1 = clazz1.getMappedClass(); Class<?> c2 = commonPersistentClass.getMappedClass(); MappedSuperclass commonMappedSuperclass = null; // First we traverse up the clazz2/commonPersistentClass super types until we find a common type while ( !c2.isAssignableFrom( c1 ) ) { if ( commonPersistentClass == null) { if ( commonMappedSuperclass.getSuperPersistentClass() == null ) { // <------------------------ NLPEX happens here!!!!!! commonMappedSuperclass = commonMappedSuperclass.getSuperMappedSuperclass(); commonPersistentClass = null; } else { commonPersistentClass = commonMappedSuperclass.getSuperPersistentClass(); commonMappedSuperclass = null; } } else { if ( commonPersistentClass.getSuperclass() == null ) { commonMappedSuperclass = commonPersistentClass.getSuperMappedSuperclass(); commonPersistentClass = null; } else { commonPersistentClass = commonPersistentClass.getSuperclass(); commonMappedSuperclass = null; } } } As you can see the commonMappedSuperclass is not initialized and stays null! At this moment c1 is CustomerEntity and c2 is UserGroupEntity. The hierarchy looks like this: Principal / \ Usergroup User | Customer HTH 2018-02-28 21:52 GMT+02:00 Christian Beikov <christian.beikov(a)gmail.com&gt;: > Hey, I saw the comment on the issue. Thanks for reporting. Could you > maybe post the model that causes this? I'd need to create a reproducer > to be able to analyze this further. > > > Mit freundlichen Grüßen, > ------------------------------------------------------------------------ > *Christian Beikov* > Am 28.02.2018 um 20:11 schrieb Petar Tahchiev: > > Hi guys, > > I have this exception with latest 5.2.14 (my project runs fine with > 5.2.13): > > > > Caused by: javax.persistence.PersistenceException: [PersistenceUnit: > > default] Unable to build Hibernate SessionFactory > > at > > org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImp > l.persistenceException(EntityManagerFactoryBuilderImpl.java:970) > > at > > org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build( > EntityManagerFactoryBuilderImpl.java:895) > > at > > org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceP > rovider.createContainerEntityManagerFactory( SpringHibernateJpaPersistenceP > rovider.java:57) > > at > > org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean. > createNativeEntityManagerFactory(LocalContainerEntityManagerFac > toryBean.java:365) > > at > > org.springframework.orm.jpa.AbstractEntityManagerFactoryBean. > buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBe an.java:387) > > at > > org.springframework.orm.jpa.AbstractEntityManagerFactoryBe > an.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:376) > > at > > org.springframework.orm.jpa.LocalContainerEntityManagerFac > toryBean.afterPropertiesSet(LocalContainerEntityManagerFac > toryBean.java:341) > > at > > org.springframework.beans.factory.support. AbstractAutowireCapableBeanFac > tory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1769) > > at > > org.springframework.beans.factory.support. AbstractAutowireCapableBeanFac > tory.initializeBean(AbstractAutowireCapableBeanFactory.java:1706) > > ... 32 more > > Caused by: org.hibernate.MappingException: Could not instantiate > persister > > org.hibernate.persister.entity.SingleTableEntityPersister > > at > > org.hibernate.persister.internal.PersisterFactoryImpl. > createEntityPersister(PersisterFactoryImpl.java:112) > > at > > org.hibernate.persister.internal.PersisterFactoryImpl. > createEntityPersister(PersisterFactoryImpl.java:77) > > at > > org.hibernate.metamodel.internal.MetamodelImpl. > initialize(MetamodelImpl.java:128) > > at > > org.hibernate.internal.SessionFactoryImpl.<init>( > SessionFactoryImpl.java:300) > > at > > org.hibernate.boot.internal.SessionFactoryBuilderImpl.build( > SessionFactoryBuilderImpl.java:460) > > at > > org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build( > EntityManagerFactoryBuilderImpl.java:892) > > ... 39 more > > Caused by: java.lang.NullPointerException > > at > > org.hibernate.persister.entity.AbstractPropertyMapping. > getSuperCollection(AbstractPropertyMapping.java:285) > > at > > org.hibernate.persister.entity.AbstractPropertyMapping. addPropertyPath( > AbstractPropertyMapping.java:198) > > at > > org.hibernate.persister.entity.AbstractPropertyMapping. > initPropertyPaths(AbstractPropertyMapping.java:395) > > at > > org.hibernate.persister.entity.AbstractEntityPersister. > initOrdinaryPropertyPaths(AbstractEntityPersister.java:2300) > > at > > org.hibernate.persister.entity.AbstractEntityPersister. > initPropertyPaths(AbstractEntityPersister.java:2347) > > at > > org.hibernate.persister.entity.AbstractEntityPersister.postConstruct( > AbstractEntityPersister.java:3906) > > at > > org.hibernate.persister.entity.SingleTableEntityPersister.<init>( > SingleTableEntityPersister.java:437) > > at sun.reflect.GeneratedConstructorAccessor94.newInstance(Unknown > > Source) > > at > > sun.reflect.DelegatingConstructorAccessorImpl.newInstance( > DelegatingConstructorAccessorImpl.java:45) > > at java.lang.reflect.Constructor.newInstance(Constructor.java: 423) > > at > > org.hibernate.persister.internal.PersisterFactoryImpl. > createEntityPersister(PersisterFactoryImpl.java:96) > > ... 44 more > > > > > > > > > > > > _______________________________________________ > hibernate-dev mailing list > hibernate-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/hibernate-dev -- Regards, Petar! 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