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[BUG]反序列化 空字符 转换成list,会默认创建不为空的list #1320

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cao191495902 opened this issue Apr 5, 2023 · 2 comments
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@cao191495902
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问题描述

空字符串 转换成list 反序列化的时候,会默认创建一个list,size=1,而fastjson不会

环境信息

请填写以下信息:

  • OS信息: windows
  • JDK信息: jdk 1.8.0_312
  • 版本信息:Fastjson2 2.0.26

重现步骤

@DaTa
public class Test1 {

private List<String> listTest;

}

public static void main(String[] args) {
   String json = "{\"listTest\":\"\"}";

    Test1  test1 = com.alibaba.fastjson2.JSONObject.parseObject(json,Test1.class);

    Test1  test2 = com.alibaba.fastjson.JSONObject.parseObject(json,Test1.class);

    System.out.println(test1);
    System.out.println(test2);
}

期待的正确结果

期待 fastjson2 和fastjson 结果相同

相关日志输出

Test1(listTest=[])
Test1(listTest=null)

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)。

@cao191495902 cao191495902 added the bug Something isn't working label Apr 5, 2023
@cao191495902 cao191495902 changed the title [BUG] [BUG]反序列化 空字符 转换成list,会默认创建不为空的list Apr 5, 2023
@wenshao
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wenshao commented Apr 5, 2023

https://oss.sonatype.org/content/repositories/snapshots/com/alibaba/fastjson2/fastjson2/2.0.27-SNAPSHOT/
问题已修复,请帮忙用2.0.27-SNAPSHOT版本验证

@wenshao wenshao added this to the 2.0.27 milestone Apr 5, 2023
@wenshao wenshao added the fixed label Apr 5, 2023
@wenshao
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wenshao commented Apr 8, 2023

https://github.com/alibaba/fastjson2/releases/tag/2.0.27
问题已修复,请用新版本

@wenshao wenshao closed this as completed Apr 8, 2023
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