how to to Mock Static Methods in Java Unit Tests Using PowerMock and JUnit 5
I keep running into I'm working on a project and hit a roadblock. I've looked through the documentation and I'm still confused about I'm working with difficulties while trying to unit test a Java class that calls static methods from another class. I'm using PowerMock with JUnit 5, but I keep working with the `java.lang.NoClassDefFoundError: Could not initialize class` behavior when running my tests. The class I'm trying to mock is as follows: ```java public class Util { public static String getStaticValue() { return "Static Value"; } } public class MyService { public String fetchValue() { return Util.getStaticValue(); } } } ``` In my test class, I'm trying to set it up as follows: ```java import org.junit.jupiter.api.Test; import org.junit.jupiter.api.extension.ExtendWith; import org.powermock.api.mockito.PowerMockito; import org.powermock.core.classloader.annotations.PrepareForTest; import org.powermock.modules.junit5.PowerMockExtension; @ExtendWith(PowerMockExtension.class) @PrepareForTest(Util.class) public class MyServiceTest { @Test void testFetchValue() { PowerMockito.mockStatic(Util.class); PowerMockito.when(Util.getStaticValue()).thenReturn("Mocked Value"); MyService myService = new MyService(); String result = myService.fetchValue(); assertEquals("Mocked Value", result); } } ``` I've included the `powermock-module-junit5` dependency in my `pom.xml` as follows: ```xml <dependency> <groupId>org.powermock</groupId> <artifactId>powermock-module-junit5</artifactId> <version>2.0.9</version> <scope>test</scope> </dependency> <dependency> <groupId>org.powermock</groupId> <artifactId>powermock-api-mockito2</artifactId> <version>2.0.9</version> <scope>test</scope> </dependency> ``` However, every time I run the test, it fails with the aforementioned behavior. I've tried cleaning and rebuilding the project, and I checked that there are no conflicting dependencies. Is there a specific setup or configuration I might be missing to enable mocking of static methods using PowerMock in JUnit 5? This is part of a larger web app I'm building. My development environment is macOS. Thanks for your help in advance! I'm coming from a different tech stack and learning Java. For context: I'm using Java on Linux. How would you solve this?