[BUG] Parse similar attributes with underline

[Cooper-Zhong]

问题描述

https://github.com/alibaba/fastjson/issues/1089 ，fastjson兼容依旧存在此问题。

环境信息

• OS信息： [MacOS 12.7.4 M1 Pro 16 GB]
• JDK信息： [Openjdk 17.0.6]
• 版本信息：[Fastjson 2.0.51]

重现步骤

import com.alibaba.fastjson.JSON;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

/**
 * Created by wenshao on 20/03/2017.
 */
public class Issue1089 {
    @Test
    public void test_for_issue() throws Exception {
        String json = "{\"ab\":123,\"a_b\":456}";
        TestBean tb = JSON.parseObject(json, TestBean.class);
        assertEquals(123, tb.getAb());
    }

    public static class TestBean {
        private int ab;

        public int getAb() {
            return ab;
        }

        public void setAb(int ab) {
            this.ab = ab;
        }
    }
}

相关日志输出

Expected :123 Actual :456