alibaba / alibaba/fastjson2

[BUG]公元前时间反序列化出错

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bug
Dominant language
Java
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Description

### 问题描述
公元前时间反序列化出错

### 环境信息
*请填写以下信息:*

- OS信息: [e.g.:CentOS 8.4.2105 4Core 3.10GHz 16 GB]
- JDK信息: [e.g.:Openjdk 1.8.0_312]
- 版本信息:[e.g.:Fastjson2 2.0.60]

### 重现步骤
LocalDateTime time=LocalDateTime.of(0,1,1,0,0,0,0).minusHours(8);
JSONObject bean=new JSONObject().fluentPut("time",time);
String s = bean.toJSONString();
System.out.println(s);
System.out.println(JSON.parseObject(s).getLocalDateTime("time"));

### 期待的正确结果
不抛出异常

### 相关日志输出
Exception in thread "main" com.alibaba.fastjson2.JSONException: read LocalDateTime error -0001-12-31 16:00:00, offset 22, character , line 1, column 22, fastjson-version 2.0.60 "-0001-12-31 16:00:00"
at com.alibaba.fastjson2.JSONReader.readLocalDateTime(JSONReader.java:2506)
at com.alibaba.fastjson2.reader.ObjectReaderImplLocalDateTime.readObject(ObjectReaderImplLocalDateTime.java:64)
at com.alibaba.fastjson2.util.TypeUtils.cast(TypeUtils.java:1522)
at com.alibaba.fastjson2.util.TypeUtils.cast(TypeUtils.java:1426)
at com.alibaba.fastjson2.JSONObject.getLocalDateTime(JSONObject.java:1087)
at com.alibaba.fastjson2.JSONObject.getLocalDateTime(JSONObject.java:1072)

#### 附加信息
*如果你还有其他需要提供的信息,可以在这里填写(可以提供截图、视频等)。*

Contributor guide

Open the contributing guide

Research direction

Reproduce the example with LocalDateTime.of(0,1,1,0,0,0,0).minusHours(8), then start in JSONReader.java at readLocalDateTime and follow the ObjectReaderImplLocalDateTime path shown in the stack trace. Add a regression test for the BCE value and confirm JSON.parseObject(s).getLocalDateTime("time") no longer throws.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
55/100

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