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Hibernate/JPA Mapping Mismatches

cluster-132

Entity mapping and serialization assumptions drift across tests, POJOs, and Hibernate versions, so Hibernate/JPA builds the wrong metadata or identifiers and later code throws NPEs or stale-state exceptions instead of persisting/fetching correctly.

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Updated6/24/2026

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24 linked nodes

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PhotoComment is not updated when a user ratePhoto() changes a photo rating

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There is no example on how to use enum mapping with postgres and hibernate 6. — I am migrating from hibernate 5 to 6. Tension: As @TypeDef is no more available I don't know how I can map my enum type to my database column.

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java.lang.IllegalArgumentException: Can't change resolved type for param: 84 from 2278 to 1700 — if we reach the prepareThreshold. Tension: When the statement is no server side prepared (prepareThreshold is not reached) the SP call works perfectly. Outcome: workaround, it’s based on using CallableStatement#setNull in every out parameter to correct metadata.

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the multitenancy feature seems not to work when directly fetching objects using findById — related to partitioned multitenancy using the @TenantId annotation. Tension: Does the multitenancy work differently when trying to get records by id? Outcome: There is an existing bug in Hibernate 6.2.

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By default, boolean attributes like `true` will have its value omitted in the built XML. — what you are missing is the option `suppressBooleanAttributes` in the XMLBuilder. Tension: That attribute should have ="true". Outcome: You need this to preserve boolean values!

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it seems that is not working for me — Spring Data Couchbase and I have an entity that maps some of the fields of a document. Tension: I need all the other fields to be mapped to a Map<String, Object>.

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The Sonar message is: A "NullPointerException" could be thrown; "ofNullable()" can return null. (rule java:S2259) — return Optional.ofNullable(string).map(String::toLowerCase).orElse(null);. Tension: May be I'm wrong, but Optional.ofNullable can't return null. Outcome: It's a bug of SonarQube.

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Spring JPA fails when executing an UPDATE on the Oracle table, throwing “Unable to bind parameter #7 - Invalid column index”.

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I am unable to retrieve the annotation at the left of the square brackets of an array — public static @MyNullable1 String @MyNullable2[] array = null;. Outcome: Why is IDEA reporting this? How can I get the annotation at the left of the square brackets?

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org.hibernate.query.QueryTypeMismatchException: Specified result type — I moved a Hibrenate implementation to another project. From com.mvc.data to com.mvc.frontend. Tension: Notice that it's the same type. Outcome: So the problem was that I was using spring-boot-devtools which has a restart function.

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Unable to save the model object in the spring boot which is having the enum property — we are using spring boot version 3.4.3 + spring data jpa project hibernate version 6+ AND spring security version 6+. Databae is postgres. Tension: In the database also I have created the column is of type enum. Outcome: Finally i have resolved this issue in the following way.

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A complex native SQL query in Spring Boot 3.4.3 is executed with @Query(nativeQuery=true) but the result cannot be mapped directly into the FindAvailableEventResponseDto record.

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While I do .transform() I get error. — hibernate 6.5.3.Final + querydsl:5.1.0. Tension: it is triggered on the call .transform(GroupBy.groupBy(id)). Outcome: java.lang.NoSuchMethodError: 'java.lang.Object org.hibernate.ScrollableResults.get(int)'.

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a fundamental property of value objects is that they should not be null — your `BankUpdateRequest`. Tension: which conflicts with the optional fields in your `BankUpdateRequest`. Outcome: allow `null` in DTOs.

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ORA-00904: "YSTIMESTAMPHEREYS_USER_CODE": Invalid identified? — in_timestamp = systimestamp WHERE sys_user_code = ? Parameters: [myuser]. Outcome: something in your client API (not Oracle) is dropping the first letter of each word after that initial `=` and then collapsing the spaces that remain.

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A container entity needs to persist a List of objects whose types are subclasses of a common base class. Because the base is annotated with @MappedSuperclass, attempts to map the list using generics/relationship annotations fail.

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I am not able to get certain results from Java client side. — uses java HLRC client fetching results from Elasticsearch cluster. Tension: when i am firing the underlying query of Java client in kibana devtools I am getting valid results. Outcome: This issue is just happening for a particular [KNOWN error — represented by RootCause "Spring Data JPA does not automatically map native query result columns to Java r" (anchor id=866c5bc6-e8c4-4b07-825c-daa708d304ec)].

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This works when I fetch into a record, but not my own pojo — I have tried many different variations including passing Long[].class to DSL.field. Tension: I just get the following. Outcome: please make sure it accommodates fetching multiple arrays of ids related to TEACHER with corresponding where/and clauses.

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Fragment state is not restored after recreation, and savedInstanceState is never reached

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List<Map<String, Object>> getOption_list() not work — I have a native query in JPA. Tension: The result of option_list is [{"image": "image1", "option": "L"}, {"image": "image2", "option": "X"}] in db.

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ERROR: cannot alter type of a column used by a view or rule — After migration from SpringBoot 2.7.18 to SpringBoot 3.4.0 and Hibernate 6. Outcome: I've drop the view which was blocking doing alter on colums. After that Hibernate updated database structure.

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Java Stream pipeline creates a list where a property's value should be null when it matches the previous item

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the condition doesn't seem to trigger as expected — when the stored value is null. Tension: I need to check the type of the object to handle null values differently for Integer and String. Outcome: it always falls through to returning null.

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Hibernate ORM doesn’t bother checking if a collection element is deeply equal to an element of the initial state — @ElementCollection(fetch = FetchType.EAGER). Tension: the user passes the fields they want. Outcome: avoid replacing objects in that case.

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