javax.persistence.EntityNotFoundException: Unable to find Bar with id 1

Hibernate JIRA | Adar Dembo | 4 years ago
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  1. 0

    If you use targetAuditMode=RelationTargetAuditMode.NOT_AUDITED on a relation and delete the (non-audited) target entity, queries for audits that contain links to the deleted target entity will throw an exception. Where it is thrown depends on how the source entity is implemented: if it implements hashCode() and includes the target entity in the hash, it'll be deep within the query itself. Here's a concrete example: {code} class Foo { @Audited(withModifiedFlag=true) String interestingField; @Audited(targetAuditMode=RelationTargetAuditMode.NOT_AUDITED) Bar myBar; public boolean equals(Object obj) { // compares interestingField and myBar } public int hashCode() { // hashes interestingField and myBar } } class Bar { ... } {code} Now suppose we issue three transactions: # Transaction 1 creates and persists a Foo and a Bar. # Transaction 2 deletes both the Foo and the Bar. # Transaction 3 queries for all revisions. The query will throw an exception like so: {noformat} javax.persistence.EntityNotFoundException: Unable to find Bar with id 1 at org.hibernate.ejb.Ejb3Configuration$Ejb3EntityNotFoundDelegate.handleEntityNotFound(Ejb3Configuration.java:155) at org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:171) at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:160) at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:195) at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:185) ... at org.hibernate.envers.tools.Triple.hashCode(Triple.java:74) at java.util.HashMap.put(HashMap.java:372) at org.hibernate.envers.reader.FirstLevelCache.putOnEntityNameCache(FirstLevelCache.java:87) at org.hibernate.envers.entities.EntityInstantiator.createInstanceFromVersionsEntity(EntityInstantiator.java:104) at org.hibernate.envers.query.impl.RevisionsOfEntityQuery.list(RevisionsOfEntityQuery.java:134) at org.hibernate.envers.query.impl.AbstractAuditQuery.getResultList(AbstractAuditQuery.java:105) ... {noformat} It would be nice to fail gracefully in the face of non-existent entity targets, by nullifying the relation, perhaps.

    Hibernate JIRA | 4 years ago | Adar Dembo
    javax.persistence.EntityNotFoundException: Unable to find Bar with id 1
  2. 0

    If you use targetAuditMode=RelationTargetAuditMode.NOT_AUDITED on a relation and delete the (non-audited) target entity, queries for audits that contain links to the deleted target entity will throw an exception. Where it is thrown depends on how the source entity is implemented: if it implements hashCode() and includes the target entity in the hash, it'll be deep within the query itself. Here's a concrete example: {code} class Foo { @Audited(withModifiedFlag=true) String interestingField; @Audited(targetAuditMode=RelationTargetAuditMode.NOT_AUDITED) Bar myBar; public boolean equals(Object obj) { // compares interestingField and myBar } public int hashCode() { // hashes interestingField and myBar } } class Bar { ... } {code} Now suppose we issue three transactions: # Transaction 1 creates and persists a Foo and a Bar. # Transaction 2 deletes both the Foo and the Bar. # Transaction 3 queries for all revisions. The query will throw an exception like so: {noformat} javax.persistence.EntityNotFoundException: Unable to find Bar with id 1 at org.hibernate.ejb.Ejb3Configuration$Ejb3EntityNotFoundDelegate.handleEntityNotFound(Ejb3Configuration.java:155) at org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:171) at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:160) at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:195) at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:185) ... at org.hibernate.envers.tools.Triple.hashCode(Triple.java:74) at java.util.HashMap.put(HashMap.java:372) at org.hibernate.envers.reader.FirstLevelCache.putOnEntityNameCache(FirstLevelCache.java:87) at org.hibernate.envers.entities.EntityInstantiator.createInstanceFromVersionsEntity(EntityInstantiator.java:104) at org.hibernate.envers.query.impl.RevisionsOfEntityQuery.list(RevisionsOfEntityQuery.java:134) at org.hibernate.envers.query.impl.AbstractAuditQuery.getResultList(AbstractAuditQuery.java:105) ... {noformat} It would be nice to fail gracefully in the face of non-existent entity targets, by nullifying the relation, perhaps.

    Hibernate JIRA | 4 years ago | Adar Dembo
    javax.persistence.EntityNotFoundException: Unable to find Bar with id 1
  3. 0

    Use hibernate.envers.store_data_at_delete = true {code} class Parent { @Audited String name; Set<Child> children; } class Child { @Audited String name; @Audited Parent parent; public int hashCode() { return Objects.hashCode(name, parent); } } {code} Transaction 1: Creates a parent. Creates a child for it. You get one revision, one Parent_AUD (create), and one Child_AUD (create). Transaction 2: Deletes the parent. Deletes the child. In my case, this is via cascade. You get one revision, one Parent_AUD (delete), and one Child_AUD (delete). Transaction 3: Lookup using the following code: {code} AuditReaderFactory.get(em) .createQuery() .forRevisionsOfEntity(Child.class, true, true) .getResultList(); {code} This throws an exception: {noformat} javax.persistence.EntityNotFoundException: Unable to find com.cloudera.cmf.model.DbService with id 1 at org.hibernate.ejb.Ejb3Configuration$Ejb3EntityNotFoundDelegate.handleEntityNotFound(Ejb3Configuration.java:155) at org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:171) at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:160) at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:195) at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:185) at Parent_$$_javassist_2.hashCode(Parent_$$_javassist_2.java) at java.util.Arrays.hashCode(Arrays.java:3655) at com.google.common.base.Objects.hashCode(Objects.java:77) at Child.hashCode(Child.java:385) at org.hibernate.envers.tools.Triple.hashCode(Triple.java:74) at java.util.HashMap.put(HashMap.java:372) at org.hibernate.envers.reader.FirstLevelCache.putOnEntityNameCache(FirstLevelCache.java:87) at org.hibernate.envers.entities.EntityInstantiator.createInstanceFromVersionsEntity(EntityInstantiator.java:104) at org.hibernate.envers.query.impl.RevisionsOfEntityQuery.list(RevisionsOfEntityQuery.java:134) at org.hibernate.envers.query.impl.AbstractAuditQuery.getResultList(AbstractAuditQuery.java:105) ... {noformat} When store_data_at_delete is true, the second Child_AUD entry contains a link to Parent_AUD, instead of a NULL. The audit query tries to build Child entities out of the two Child_AUD entries but fails for the second one. Why does it fail? Because the SQL query it uses to fetch the correct Parent_AUD entry ignores entries with revision type DEL. Here's the corresponding comment from EntitiesAtRevisionQuery.list(): {code} /* * The query that we need to create: * SELECT new list(e) FROM versionsReferencedEntity e * WHERE * (all specified conditions, transformed, on the "e" entity) AND * (selecting e entities at revision :revision) * --> for DefaultAuditStrategy: * e.revision = (SELECT max(e2.revision) FROM versionsReferencedEntity e2 * WHERE e2.revision <= :revision AND e2.id = e.id) * * --> for ValidityAuditStrategy: * e.revision <= :revision and (e.endRevision > :revision or e.endRevision is null) * * AND * (only non-deleted entities) * e.revision_type != DEL */ {code} I think the right thing to do here is relax that last condition when we're fetching a relation for a DEL audit entry. Here's the corresponding forum post: https://community.jboss.org/message/800890

    Hibernate JIRA | 4 years ago | Adar Dembo
    javax.persistence.EntityNotFoundException: Unable to find com.cloudera.cmf.model.DbService with id 1
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  5. 0

    Use hibernate.envers.store_data_at_delete = true {code} class Parent { @Audited String name; Set<Child> children; } class Child { @Audited String name; @Audited Parent parent; public int hashCode() { return Objects.hashCode(name, parent); } } {code} Transaction 1: Creates a parent. Creates a child for it. You get one revision, one Parent_AUD (create), and one Child_AUD (create). Transaction 2: Deletes the parent. Deletes the child. In my case, this is via cascade. You get one revision, one Parent_AUD (delete), and one Child_AUD (delete). Transaction 3: Lookup using the following code: {code} AuditReaderFactory.get(em) .createQuery() .forRevisionsOfEntity(Child.class, true, true) .getResultList(); {code} This throws an exception: {noformat} javax.persistence.EntityNotFoundException: Unable to find com.cloudera.cmf.model.DbService with id 1 at org.hibernate.ejb.Ejb3Configuration$Ejb3EntityNotFoundDelegate.handleEntityNotFound(Ejb3Configuration.java:155) at org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:171) at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:160) at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:195) at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:185) at Parent_$$_javassist_2.hashCode(Parent_$$_javassist_2.java) at java.util.Arrays.hashCode(Arrays.java:3655) at com.google.common.base.Objects.hashCode(Objects.java:77) at Child.hashCode(Child.java:385) at org.hibernate.envers.tools.Triple.hashCode(Triple.java:74) at java.util.HashMap.put(HashMap.java:372) at org.hibernate.envers.reader.FirstLevelCache.putOnEntityNameCache(FirstLevelCache.java:87) at org.hibernate.envers.entities.EntityInstantiator.createInstanceFromVersionsEntity(EntityInstantiator.java:104) at org.hibernate.envers.query.impl.RevisionsOfEntityQuery.list(RevisionsOfEntityQuery.java:134) at org.hibernate.envers.query.impl.AbstractAuditQuery.getResultList(AbstractAuditQuery.java:105) ... {noformat} When store_data_at_delete is true, the second Child_AUD entry contains a link to Parent_AUD, instead of a NULL. The audit query tries to build Child entities out of the two Child_AUD entries but fails for the second one. Why does it fail? Because the SQL query it uses to fetch the correct Parent_AUD entry ignores entries with revision type DEL. Here's the corresponding comment from EntitiesAtRevisionQuery.list(): {code} /* * The query that we need to create: * SELECT new list(e) FROM versionsReferencedEntity e * WHERE * (all specified conditions, transformed, on the "e" entity) AND * (selecting e entities at revision :revision) * --> for DefaultAuditStrategy: * e.revision = (SELECT max(e2.revision) FROM versionsReferencedEntity e2 * WHERE e2.revision <= :revision AND e2.id = e.id) * * --> for ValidityAuditStrategy: * e.revision <= :revision and (e.endRevision > :revision or e.endRevision is null) * * AND * (only non-deleted entities) * e.revision_type != DEL */ {code} I think the right thing to do here is relax that last condition when we're fetching a relation for a DEL audit entry. Here's the corresponding forum post: https://community.jboss.org/message/800890

    Hibernate JIRA | 4 years ago | Adar Dembo
    javax.persistence.EntityNotFoundException: Unable to find com.cloudera.cmf.model.DbService with id 1
  6. 0

    Package name issue

    gilead | 7 years ago | adeliocorso
    javax.persistence.EntityNotFoundException: Unable to find com.abc.persistence.entities.dictionaries.SomeDictionary with id com.abc.persistence.entities.dictionaries.SomeDictionary$PrimaryKey@45c

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    Root Cause Analysis

    1. javax.persistence.EntityNotFoundException

      Unable to find Bar with id 1

      at org.hibernate.ejb.Ejb3Configuration$Ejb3EntityNotFoundDelegate.handleEntityNotFound()
    2. Hibernate EJB
      Ejb3Configuration$Ejb3EntityNotFoundDelegate.handleEntityNotFound
      1. org.hibernate.ejb.Ejb3Configuration$Ejb3EntityNotFoundDelegate.handleEntityNotFound(Ejb3Configuration.java:155)
      1 frame
    3. Hibernate
      JavassistLazyInitializer.invoke
      1. org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:171)
      2. org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:160)
      3. org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:195)
      4. org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:185)
      4 frames