# java.io.NotSerializableException: com.example.MyClass

- **ID:** `java/not-serializable-exception`
- **领域:** java
- **类别:** runtime_error
- **验证级别:** ai_generated
- **修复率:** 92%

## 根因

尝试序列化未实现 java.io.Serializable 接口的类的对象，通常发生在对象输出、RMI 或会话复制过程中。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| Java 8 | active | — | — |
| Java 11 | active | — | — |
| Java 17 | active | — | — |
| Java 21 | active | — | — |

## 解决方案

1. ```
   Implement java.io.Serializable in the class: public class MyClass implements Serializable { private static final long serialVersionUID = 1L; }
   ```
2. ```
   If the class cannot be modified, use a custom serialization mechanism like Jackson or writeExternal for Externalizable.
   ```

## 无效尝试

- **** — The serialVersionUID field is only relevant for Serializable classes; without implementing the interface, the exception persists. (90% 失败率)
- **** — Transient fields prevent serialization of those fields, but the class itself must still implement Serializable to be serialized. (80% 失败率)