Why @BeforeClass in JUnit is static in nature

Question

In JUnit, why @BeforeClass is marked static? What is the significance in doing so?

And for every xxxTest() method, does Junit creates a new instance of the class? https://martinfowler.com/bliki/JunitNewInstance.html

If yes why so?

Answer 1

Did you read any of the JUnit docs?

Straight from the @BeforeClass docs:

Sometimes several tests need to share computationally expensive setup
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Annotating a public static void no-arg method with @BeforeClass causes it to be run once before any of the test methods in the class.
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Straight from the @Test docs:

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To run the method, JUnit first constructs a fresh instance of the class then invokes the annotated method.
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