{"record":{"id":"fddbf9725cbe3362","repo":"alibaba/nacos","slug":"100-fddbf9","errorCode":"100","errorMessage":"Nacos serialize for class [%s] failed. ","messagePattern":"Nacos serialize for class \\[(.+?)\\] failed\\. ","errorType":"exception","errorClass":"NacosSerializationException","httpStatus":null,"severity":"error","filePath":"common/src/main/java/com/alibaba/nacos/common/utils/JacksonUtils.java","lineNumber":64,"sourceCode":"    static ObjectMapper mapper = new ObjectMapper();\n    \n    static {\n        mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);\n        mapper.setSerializationInclusion(Include.NON_NULL);\n    }\n    \n    /**\n     * Object to json string.\n     *\n     * @param obj obj\n     * @return json string\n     * @throws NacosSerializationException if transfer failed\n     */\n    public static String toJson(Object obj) {\n        try {\n            return mapper.writeValueAsString(obj);\n        } catch (JsonProcessingException e) {\n            throw new NacosSerializationException(obj.getClass(), e);\n        }\n    }\n    \n    /**\n     * Object to json string byte array.\n     *\n     * @param obj obj\n     * @return json string byte array\n     * @throws NacosSerializationException if transfer failed\n     */\n    public static byte[] toJsonBytes(Object obj) {\n        try {\n            return mapper.writeValueAsBytes(obj);\n        } catch (JsonProcessingException e) {\n            throw new NacosSerializationException(obj.getClass(), e);\n        }\n    }\n    ","sourceCodeStart":46,"sourceCodeEnd":82,"githubUrl":"https://github.com/alibaba/nacos/blob/9b989acdf181d00898f2e8839257bb2b2a3cefe3/common/src/main/java/com/alibaba/nacos/common/utils/JacksonUtils.java#L46-L82","documentation":"Error \"Nacos serialize for class [%s] failed. \" thrown in alibaba/nacos.","triggerScenarios":"Thrown at common/src/main/java/com/alibaba/nacos/common/utils/JacksonUtils.java:64 when the library encounters an invalid state.","commonSituations":"Jackson failed to serialize an object to JSON.","solutions":["Inspect the server logs for the underlying cause, fix it, and retry the operation."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"9b989acdf181d00898f2e8839257bb2b2a3cefe3","analyzedAt":"2026-08-14T07:17:31.569Z","schemaVersion":2},"datasetVersion":"2026-08-14T10:17:34.591Z"}