Findbugs reports Load of known null value while validating constructor argument
在使用findbugs扫描以下代码时,它报告了Dodgy代码:NP:在新....(抛出新异常的行)处加载了已知的空值。
有时需要在初始化对象之前检查null。
为什么这被视为"狡猾"?
1 2 3 4 5 6 7 8 9 10 11 12 13 | public class Employee{ @Valid private Department dept; @JsonCreator public Employee(@JsonProperty(value ="department", required = true) Department aDepartment) throws EmpServiceException{ if (aDepartment == null) { throw new EmpServiceException(aDepartment,"Invalid Request"); } this.dept= aDepartment; } |
我的猜测是FindBugs指出了引发异常的行
1 | throw new EmpServiceException(aDepartment,"Invalid Request"); |
等同于
1 | throw new EmpServiceException(null,"Invalid Request"); |
,并希望您使用后者。该