{"record":{"id":"da1c23b70970e3d2","repo":"hibernate/hibernate-orm","slug":"illegal-discriminator-value-domainform","errorCode":null,"errorMessage":"Illegal discriminator value: {domainForm}","messagePattern":"Illegal discriminator value: (.+?)","errorType":"exception","errorClass":"IllegalArgumentException","httpStatus":null,"severity":"error","filePath":"hibernate-core/src/main/java/org/hibernate/metamodel/mapping/EmbeddableDiscriminatorConverter.java","lineNumber":123,"sourceCode":"\t\t\t\treturn result;\n\t\t\t}\n\t\t}\n\t\treturn null;\n\t}\n\n\t@Override\n\tprotected String getEntityName(O domainForm) {\n\t\tif ( domainForm == null ) {\n\t\t\treturn null;\n\t\t}\n\t\telse if ( domainForm instanceof Class<?> clazz ) {\n\t\t\treturn clazz.getName();\n\t\t}\n\t\telse if ( domainForm instanceof String name ) {\n\t\t\treturn name;\n\t\t}\n\t\telse {\n\t\t\tthrow new IllegalArgumentException( \"Illegal discriminator value: \" + domainForm );\n\t\t}\n\t}\n}\n","sourceCodeStart":105,"sourceCodeEnd":127,"githubUrl":"https://github.com/hibernate/hibernate-orm/blob/fad1729dce015f908198d57a8d80274a30f905a5/hibernate-core/src/main/java/org/hibernate/metamodel/mapping/EmbeddableDiscriminatorConverter.java#L105-L127","documentation":"Error \"Illegal discriminator value: {domainForm}\" thrown in hibernate/hibernate-orm.","triggerScenarios":"Thrown when the domain (Java) form of an embeddable discriminator value is not one of the legal mapped values.","commonSituations":"See trigger scenarios.","solutions":["Use only domain forms (subtype names) that were registered in the embeddable discriminator mapping when setting the embeddable value."],"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"}