@Override
    public String toString() {
        return "User{" +
                "username='" + username + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
<p>Title: Issue1612</p>
<p>Description: </p>

@author Victor
@version 1.0
@since 2017/11/27
src/test/java/com/alibaba/json/bvt/issue_1600/Issue1612.java