{"record":{"id":"329a4bb894e35257","repo":"hibernate/hibernate-orm","slug":"not-implemented-yet-329a4b","errorCode":null,"errorMessage":"Not implemented yet - {}","messagePattern":"Not implemented yet - (.+?)","errorType":"exception","errorClass":"UnsupportedOperationException","httpStatus":null,"severity":"error","filePath":"hibernate-core/src/main/java/org/hibernate/query/named/spi/FetchMemento.java","lineNumber":31,"sourceCode":"\n/**\n * @author Steve Ebersole\n */\npublic interface FetchMemento extends ModelPartReferenceMemento {\n\t/**\n\t * The parent node for the fetch\n\t */\n\tinterface Parent extends ModelPartReferenceMemento {\n\t\tClass<?> getResultJavaType();\n\t}\n\n\t/**\n\t * Resolve the fetch-memento into the result-graph-node builder\n\t */\n\tFetchBuilder resolve(Parent parent, Consumer<String> querySpaceConsumer, ResultSetMappingResolutionContext context);\n\n\tdefault MemberMapping<?> toJpaMemberMapping(Parent parent, SessionFactory sessionFactory) {\n\t\tthrow new UnsupportedOperationException( \"Not implemented yet - \" + getClass().getName() );\n\t}\n}\n","sourceCodeStart":13,"sourceCodeEnd":34,"githubUrl":"https://github.com/hibernate/hibernate-orm/blob/fad1729dce015f908198d57a8d80274a30f905a5/hibernate-core/src/main/java/org/hibernate/query/named/spi/FetchMemento.java#L13-L34","documentation":"Error \"Not implemented yet - {}\" thrown in hibernate/hibernate-orm.","triggerScenarios":"A code path that Hibernate has not implemented is exercised: Not implemented yet - <value>","commonSituations":"Using newer/edge API features (certain projections, specifications, fetch mementos, composite-path native mappings, null keys in key-based pagination) that are present but not yet implemented.","solutions":["This fetch memento operation is not implemented. Avoid this code path or upgrade to a Hibernate version that implements it."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"fad1729dce015f908198d57a8d80274a30f905a5","analyzedAt":"2026-08-22T04:13:57.527Z","schemaVersion":2},"datasetVersion":"2026-08-22T09:17:25.309Z"}