lucky-xin edited a comment on issue #54:
URL:
https://github.com/apache/dubbo-hessian-lite/issues/54#issuecomment-986413418
写错了,如果类定义了writeReplace方法，那么在创建JavaSerializer时会遍历类获取writeReplace方法
```
private Method _writeReplace;
public JavaSerializer(Class cl, ClassLoader loader) {
introspectWriteReplace(cl, loader);// 这里初始化_writeReplace
if (_writeReplace != null)
_writeReplace.setAccessible(true);
}
```
然后在序列化时就执行以下代码
```
@Override
public void writeObject(Object obj, AbstractHessianOutput out)
throws IOException {
if (out.addRef(obj)) {
return;
}
Class cl = obj.getClass();
try {
if (_writeReplace != null) {
Object repl;
if (_writeReplaceFactory != null)
repl = _writeReplace.invoke(_writeReplaceFactory, obj);
else
repl = _writeReplace.invoke(obj);
}
```
因为_writeReplace不为null，就执行writeReplace方法了
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