java.lang.NullPointerException

Oracle Community | javari | 9 years ago
  1. 0

    JPA Error: java.lang.NullPointerException

    Oracle Community | 9 years ago | javari
    java.lang.NullPointerException
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    Toplink save error

    Oracle Community | 9 years ago | chris_lenz
    javax.ejb.EJBException
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    Android: Saving Map State in Google map

    Stack Overflow | 11 months ago | Junie Negentien
    java.lang.RuntimeException: Unable to resume activity {com.ourThesis.junieNegentien2015/com.ourThesis.junieNegentien2015.MainActivity}: java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at oracle.toplink.essentials.internal.queryframework.CollectionContainerPolicy.iteratorFor()
    2. oracle.toplink.essentials
      EntityManagerImpl.merge
      1. oracle.toplink.essentials.internal.queryframework.CollectionContainerPolicy.iteratorFor(CollectionContainerPolicy.java:172)
      2. oracle.toplink.essentials.internal.helper.WriteLockManager.traverseRelatedLocks(WriteLockManager.java:171)
      3. oracle.toplink.essentials.internal.helper.WriteLockManager.acquireLockAndRelatedLocks(WriteLockManager.java:149)
      4. oracle.toplink.essentials.internal.helper.WriteLockManager.checkAndLockObject(WriteLockManager.java:378)
      5. oracle.toplink.essentials.internal.helper.WriteLockManager.traverseRelatedLocks(WriteLockManager.java:186)
      6. oracle.toplink.essentials.internal.helper.WriteLockManager.acquireLockAndRelatedLocks(WriteLockManager.java:149)
      7. oracle.toplink.essentials.internal.helper.WriteLockManager.acquireLocksForClone(WriteLockManager.java:89)
      8. oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.cloneAndRegisterObject(UnitOfWorkImpl.java:669)
      9. oracle.toplink.essentials.internal.sessions.UnitOfWorkIdentityMapAccessor.getAndCloneCacheKeyFromParent(UnitOfWorkIdentityMapAccessor.java:167)
      10. oracle.toplink.essentials.internal.sessions.UnitOfWorkIdentityMapAccessor.getFromIdentityMap(UnitOfWorkIdentityMapAccessor.java:105)
      11. oracle.toplink.essentials.internal.sessions.IdentityMapAccessor.getFromIdentityMap(IdentityMapAccessor.java:310)
      12. oracle.toplink.essentials.internal.sessions.MergeManager.registerObjectForMergeCloneIntoWorkingCopy(MergeManager.java:674)
      13. oracle.toplink.essentials.internal.sessions.MergeManager.mergeChangesOfCloneIntoWorkingCopy(MergeManager.java:411)
      14. oracle.toplink.essentials.internal.sessions.MergeManager.mergeChanges(MergeManager.java:264)
      15. oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.mergeCloneWithReferences(UnitOfWorkImpl.java:2723)
      16. oracle.toplink.essentials.internal.ejb.cmp3.base.RepeatableWriteUnitOfWork.mergeCloneWithReferences(RepeatableWriteUnitOfWork.java:219)
      17. oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerImpl.mergeInternal(EntityManagerImpl.java:235)
      18. oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerImpl.merge(EntityManagerImpl.java:128)
      18 frames
    3. MainProgramManagement
      PersistenceDBManager.saveDataToDB
      1. MainProgramManagement.ProgramMain.mergeData(ProgramMain.java:846)
      2. MainProgramManagement.PersistenceDBManager.saveDataToDB(PersistenceDBManager.java:552)
      2 frames