{"id":"e0581ca8f229e84b","repo":"spring-projects/spring-framework","slug":"failed-to-generate-code-for-bean-definition","errorCode":null,"errorMessage":"failed to generate code for bean definition","messagePattern":"failed to generate code for bean definition","errorType":"exception","errorClass":"AotBeanProcessingException","httpStatus":null,"severity":"error","filePath":"spring-beans/src/main/java/org/springframework/beans/factory/aot/BeanRegistrationsAotContribution.java","lineNumber":280,"sourceCode":"\t\t\t});\n\t\t}\n\n\n\t\tprivate void generateRegisterBeanDefinitionMethods(MethodSpec.Builder method,\n\t\t\t\tIterable<Registration> registrations) {\n\n\t\t\tCodeBlock.Builder code = CodeBlock.builder();\n\t\t\tregistrations.forEach(registration -> {\n\t\t\t\ttry {\n\t\t\t\t\tCodeBlock methodInvocation = generateBeanRegistration(registration);\n\t\t\t\t\tcode.addStatement(\"$L.registerBeanDefinition($S, $L)\",\n\t\t\t\t\t\t\tBEAN_FACTORY_PARAMETER_NAME, registration.beanName(), methodInvocation);\n\t\t\t\t}\n\t\t\t\tcatch (AotException ex) {\n\t\t\t\t\tthrow ex;\n\t\t\t\t}\n\t\t\t\tcatch (Exception ex) {\n\t\t\t\t\tthrow new AotBeanProcessingException(registration.registeredBean,\n\t\t\t\t\t\t\t\"failed to generate code for bean definition\", ex);\n\t\t\t\t}\n\t\t\t});\n\t\t\tmethod.addCode(code.build());\n\t\t}\n\n\t\tprivate CodeBlock generateBeanRegistration(Registration registration) {\n\t\t\tMethodReference beanDefinitionMethod = registration.methodGenerator\n\t\t\t\t\t.generateBeanDefinitionMethod(this.generationContext, this.codeGenerator);\n\t\t\treturn beanDefinitionMethod.toInvokeCodeBlock(\n\t\t\t\t\tArgumentCodeGenerator.none(), this.codeGenerator.getClassName());\n\t\t}\n\t}\n\n}\n","sourceCodeStart":262,"sourceCodeEnd":296,"githubUrl":"https://github.com/spring-projects/spring-framework/blob/e8729d043887bf0d0baf91e062e909b56eb2b708/spring-beans/src/main/java/org/springframework/beans/factory/aot/BeanRegistrationsAotContribution.java#L262-L296","documentation":"A catch-all in BeanRegistrationsAotContribution: while generating the AOT registration code for an individual bean, any Exception that is not an AotException is wrapped in AotBeanProcessingException with this generic message. The real cause is attached; the message itself just says AOT code generation failed for that bean definition.","triggerScenarios":"Any unhandled exception during generateBeanRegistration -> generateBeanDefinitionMethod for a specific registered bean during the AOT phase. The underlying exception (cause) identifies the precise sub-failure.","commonSituations":"Composite symptom of another AOT issue (e.g. errors 207/208/212 propagating). Often seen when a bean uses features the AOT engine cannot serialize to code. The bean name in AotBeanProcessingException points at the offending bean.","solutions":["Read the cause of the AotBeanProcessingException - it carries the specific failure to fix.","Identify the bean named in the exception and inspect its definition (factory method, constructor, overrides).","Address the root cause (unsupported feature, missing class, signature mismatch) per the cause's own message.","If unavoidable, exclude the bean from AOT or make it AOT-friendly (static factory method, no instance supplier)."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"try {\n  SpringApplication.run(App.class, args);\n} catch (AotBeanProcessingException ex) {\n  Throwable cause = ex.getCause();\n  log.error(\"AOT failed for bean [{}]: {}\", ex.getBeanName(), cause);\n  // dispatch on cause type (missing class, unsupported override, instance supplier...)\n  throw ex;\n}","preventionTips":["Always read the cause of AotBeanProcessingException; the wrapper message is generic.","Keep beans AOT-friendly: static factory methods, no instance suppliers, standard overrides.","Run an AOT dry-run in CI to catch unsupported beans before native packaging."],"tags":["spring","aot","native","code-generation"],"analyzedSha":"e8729d043887bf0d0baf91e062e909b56eb2b708","analyzedAt":"2026-08-04T19:07:39.725Z","schemaVersion":2}