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1.Boxing/unboxing to parse a primitive
A boxed primitive is created from a String, just to extract the unboxed primitive value. It is more efficient to just call the static parseXXX method.

装箱/解装箱以解析原语
从字符串中创建一个已装箱的原语,只是为了提取未装箱的原语值。只调用静态parseXXX方法更有效。

Integer.parseInt(s)和Integer.valueof(s)
Integer.parseInt(s)的作用就是把字符串s解析成有符号的int基本类型
Integer.valueOf(s)把字符串s解析成Integer对象类型,返回的integer 可以调用对象中的方法。

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2.Boxed value is unboxed and then immediately reboxed
A boxed value is unboxed and then immediately reboxed.

已装箱的值被解除装箱,然后立即重新装箱
已装箱的值被解除装箱,然后立即重新装箱。
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3.Nullcheck of value previously dereferenced
A value is checked here to see whether it is null, but this

本文标签: 插件错误findbugs