{"record":{"id":"26cff8fbdfbd9f4f","repo":"hibernate/hibernate-orm","slug":"not-a-managed-type-cls","errorCode":null,"errorMessage":"Not a managed type: ${cls}","messagePattern":"Not a managed type: (.+?)","errorType":"exception","errorClass":"IllegalArgumentException","httpStatus":null,"severity":"error","filePath":"hibernate-core/src/main/java/org/hibernate/metamodel/model/domain/internal/JpaMetamodelImpl.java","lineNumber":263,"sourceCode":"\t\t\t@SuppressWarnings(\"unchecked\") // Safe, we checked it\n\t\t\tfinal var type = (ManagedDomainType<X>) domainType;\n\t\t\treturn type;\n\t\t}\n\t}\n\n\t@Override\n\t@Nullable\n\tpublic <X> ManagedDomainType<X> findManagedType(Class<X> cls) {\n\t\treturn checkDomainType( cls, managedTypeByClass.get( cls ) );\n\t}\n\n\t@Override\n\t@Nonnull\n\tpublic <X> ManagedDomainType<X> managedType(@Nonnull Class<X> cls) {\n\t\tfinal var type = findManagedType( cls );\n\t\tif ( type == null ) {\n\t\t\t// per JPA\n\t\t\tthrow new IllegalArgumentException( \"Not a managed type: \" + cls );\n\t\t}\n\t\treturn type;\n\t}\n\n\t@Override\n\t@Nullable\n\tpublic <X> EntityDomainType<X> findEntityType(Class<X> cls) {\n\t\treturn checkDomainType( cls, managedTypeByClass.get( cls ) )\n\t\t\t\t\tinstanceof EntityDomainType<X> entityDomainType\n\t\t\t\t? entityDomainType\n\t\t\t\t: null;\n\t}\n\n\t@Override\n\t@Nonnull\n\tpublic <X> EntityDomainType<X> entity(@Nonnull Class<X> cls) {\n\t\tfinal var entityType = findEntityType( cls );\n\t\tif ( entityType == null ) {","sourceCodeStart":245,"sourceCodeEnd":281,"githubUrl":"https://github.com/hibernate/hibernate-orm/blob/fad1729dce015f908198d57a8d80274a30f905a5/hibernate-core/src/main/java/org/hibernate/metamodel/model/domain/internal/JpaMetamodelImpl.java#L245-L281","documentation":"Error \"Not a managed type: ${cls}\" thrown in hibernate/hibernate-orm.","triggerScenarios":"Thrown when managedType() is called with a Class that has no managed type in the JPA metamodel.","commonSituations":"See trigger scenarios.","solutions":["Use a managed type (entity/mapped-superclass/embeddable class); ensure the class is included in the persistence unit."],"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"}