java.lang.NullPointerException

Hibernate JIRA | Kristof Jozsa | 1 decade ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    A many-to-many collection (User-Role) is mapped the following way: user side: <set name="roles" lazy="false" inverse="true" table="user_roles" cascade="save-update"> <key column="user_name" property-ref="username"/> <many-to-many class="ch.orange.ras.model.Role" column="role_name"/> </set> role side: <set name="users" lazy="true" table="user_roles"> <key column="role_name"/> <many-to-many class="ch.orange.ras.model.User" column="user_name"/> </set> saving a detached User object with a valid set of Roles throws the following exception: java.lang.NullPointerException at org.hibernate.engine.EntityEntry.getLoadedValue(EntityEntry.java:141) at org.hibernate.type.CollectionType.getKeyOfOwner(CollectionType.java:302) at org.hibernate.engine.Collections.processReachableCollection(Collections.java:137) at org.hibernate.event.def.FlushVisitor.processCollection(FlushVisitor.java:37) at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:104) at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:64) at org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:58) at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:198) at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:190) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:70) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:730) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:324) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:86) [...] removing the property-ref attribute from User's mapping makes it work, so I believe the bug is related to that new feature.

    Hibernate JIRA | 1 decade ago | Kristof Jozsa
    java.lang.NullPointerException
  2. 0

    A many-to-many collection (User-Role) is mapped the following way: user side: <set name="roles" lazy="false" inverse="true" table="user_roles" cascade="save-update"> <key column="user_name" property-ref="username"/> <many-to-many class="ch.orange.ras.model.Role" column="role_name"/> </set> role side: <set name="users" lazy="true" table="user_roles"> <key column="role_name"/> <many-to-many class="ch.orange.ras.model.User" column="user_name"/> </set> saving a detached User object with a valid set of Roles throws the following exception: java.lang.NullPointerException at org.hibernate.engine.EntityEntry.getLoadedValue(EntityEntry.java:141) at org.hibernate.type.CollectionType.getKeyOfOwner(CollectionType.java:302) at org.hibernate.engine.Collections.processReachableCollection(Collections.java:137) at org.hibernate.event.def.FlushVisitor.processCollection(FlushVisitor.java:37) at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:104) at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:64) at org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:58) at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:198) at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:190) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:70) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:730) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:324) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:86) [...] removing the property-ref attribute from User's mapping makes it work, so I believe the bug is related to that new feature.

    Hibernate JIRA | 1 decade ago | Kristof Jozsa
    java.lang.NullPointerException
  3. 0

    Mapping a class as component with array type field

    Coderanch | 8 years ago | M. Saeed
    java.lang.NullPointerException
  4. Speed up your debug routine!

    Automated exception search integrated into your IDE

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.hibernate.engine.EntityEntry.getLoadedValue()
    2. Hibernate
      Collections.processReachableCollection
      1. org.hibernate.engine.EntityEntry.getLoadedValue(EntityEntry.java:141)
      2. org.hibernate.type.CollectionType.getKeyOfOwner(CollectionType.java:302)
      3. org.hibernate.engine.Collections.processReachableCollection(Collections.java:137)
      3 frames
    3. Hibernate
      SessionImpl.managedFlush
      1. org.hibernate.event.def.FlushVisitor.processCollection(FlushVisitor.java:37)
      2. org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:104)
      3. org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:64)
      4. org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:58)
      5. org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:198)
      6. org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:190)
      7. org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:70)
      8. org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
      9. org.hibernate.impl.SessionImpl.flush(SessionImpl.java:730)
      10. org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:324)
      10 frames
    4. Hibernate
      JDBCTransaction.commit
      1. org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:86)
      1 frame