From FindBugs Middle School Java "three"

2. bx_boxing_immediately_unboxed

Double A = 100d;double D = double.valueof (a);

Primitive value is boxed and then immediately unboxed.

Non-essential boxing and immediate unpacking operation.

Intellij will also give such a hint:

There's nothing to say.

3. Iju_setup_no_super

Seems to be a legacy problem, appearing in the era of JUnit3, e.g.

JUnit3 would do that.

public class Thetest extends TestCase {//test methods ... public static test suite () {return new Testsetup (New TestSuite (T Hetest.class) {protected void SetUp () throws Exception {Super.setup ();//set-up code called only once}protected void tear Down () throws Exception {//Tear-down code called only Oncesuper.teardown ();}};

So we need this super.setup () to initialize

JUNIT4 began to use annotation on a massive scale, and we had @before @After to do it.

Of course, now JUNIT4 has been used for many years, such as the Spock test Framework is also very useful ~

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From FindBugs Middle School Java "three"