使用 lombok 时，两个字段（testName、testname）只生成了一组 getter/setter

[persona5]

TestEntity.java

@NoArgsConstructor
@Data
public class TestEntity {

    private String testName;
    private String testname;
}

TestEntity.class

public class TestEntity {
    private String testName;
    private String testname;

    public TestEntity() {
    }

    public String getTestName() {
        return this.testName;
    }

    public void setTestName(final String testName) {
        this.testName = testName;
    }

    ...
}

请问这是什么原因？

[CantSee]

1.18.0 复现