[스프링 오류]Could not initialize plugin: interface org.mockito.plugins.MockMaker (alternate: null) 설정오류

[오류 발생]

 

 

 

@SpringBootTest를 진행하다 이러한 에러를 발견했다.

 

 

 

 

 

오류 내용은 Plugins.MockMaker라는 인터페이스를 로드 할 수 없다는 것이다.

 

 

 

또한 이 로그를 읽어보니 이 JDK에서는 지원되지 않는다고 한다.

이게 뭔 소리지? 자바 19버전인데 지원이 안된다는 것을 말이 안된다. 그래서 오류코드를 유심히 더 살펴봤다.

 

 

[오류 로그]

 

ava.lang.IllegalStateException: Could not initialize plugin: interface org.mockito.plugins.MockMaker (alternate: null)
at org.mockito.internal.configuration.plugins.PluginLoader$1.invoke(PluginLoader.java:84) ~[mockito-core-5.3.1.jar:na]
at jdk.proxy3/jdk.proxy3.$Proxy86.getHandler(Unknown Source) ~[na:na]
at org.mockito.internal.util.MockUtil.getMockHandlerOrNull(MockUtil.java:158) ~[mockito-core-5.3.1.jar:na]
at org.mockito.internal.util.MockUtil.isMock(MockUtil.java:147) ~[mockito-core-5.3.1.jar:na]
at org.mockito.internal.util.DefaultMockingDetails.isMock(DefaultMockingDetails.java:32) ~[mockito-core-5.3.1.jar:na]
at org.springframework.boot.test.mock.mockito.MockReset.get(MockReset.java:106) ~[spring-boot-test-3.1.0.jar:3.1.0]
at org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener.resetMocks(ResetMocksTestExecutionListener.java:85) ~[spring-boot-test-3.1.0.jar:3.1.0]
at org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener.resetMocks(ResetMocksTestExecutionListener.java:73) ~[spring-boot-test-3.1.0.jar:3.1.0]
at org.springframework.boot.test.mock.mockito.ResetMocksTestExecutionListener.beforeTestMethod(ResetMocksTestExecutionListener.java:60) ~[spring-boot-test-3.1.0.jar:3.1.0]
at org.springframework.test.context.TestContextManager.beforeTestMethod(TestContextManager.java:288) ~[spring-test-6.0.9.jar:6.0.9]
at org.springframework.test.context.junit.jupiter.SpringExtension.beforeEach(SpringExtension.java:174) ~[spring-test-6.0.9.jar:6.0.9]
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeEachCallbacks$2(TestMethodTestDescriptor.java:166) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeMethodsOrCallbacksUntilExceptionOccurs$6(TestMethodTestDescriptor.java:202) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeMethodsOrCallbacksUntilExceptionOccurs(TestMethodTestDescriptor.java:202) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeEachCallbacks(TestMethodTestDescriptor.java:165) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:132) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.platfor m.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platfor m.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) ~[na:na]
at org.junit.platfor m.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) ~[na:na]
at org.junit.platfor m.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) ~[na:na]
at org.junit.platfor m.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) ~[na:na]
at org.junit.platfor m.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) ~[na:na]
at org.junit.platfor m.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) ~[na:na]
at org.junit.platfor m.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) ~[na:na]
at org.junit.platfor m.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) ~[na:na]
at org.junit.platfor m.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) ~[na:na]
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:99) ~[na:na]
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:79) ~[na:na]
at org.gradle.api.internal.tasks.testing.junitplatfor m.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:75) ~[na:na]
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:578) ~[na:na]
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36) ~[na:na]
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) ~[na:na]
at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33) ~[na:na]
at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94) ~[na:na]
at jdk.proxy1/jdk.proxy1.$Proxy2.stop(Unknown Source) ~[na:na]
at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:193) ~[na:na]
at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129) ~[na:na]
at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100) ~[na:na]
at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60) ~[na:na]
at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56) ~[na:na]
at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:113) ~[na:na]
at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65) ~[na:na]
at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69) ~[gradle-worker.jar:na]
at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74) ~[gradle-worker.jar:na]
Caused by: java.lang.IllegalStateException: Internal problem occurred, please report it. Mockito is unable to load the default implementation of class that is a part of Mockito distribution. Failed to load interface org.mockito.plugins.MockMaker
at org.mockito.internal.configuration.plugins.DefaultMockitoPlugins.create(DefaultMockitoPlugins.java:104) ~[mockito-core-5.3.1.jar:na]
at org.mockito.internal.configuration.plugins.DefaultMockitoPlugins.getDefaultPlugin(DefaultMockitoPlugins.java:78) ~[mockito-core-5.3.1.jar:na]
at org.mockito.internal.configuration.plugins.PluginLoader.loadPlugin(PluginLoader.java:75) ~[mockito-core-5.3.1.jar:na]
at org.mockito.internal.configuration.plugins.PluginLoader.loadPlugin(PluginLoader.java:50) ~[mockito-core-5.3.1.jar:na]
at org.mockito.internal.configuration.plugins.PluginRegistry.<init>(PluginRegistry.java:27) ~[mockito-core-5.3.1.jar:na]
at org.mockito.internal.configuration.plugins.Plugins.<clinit>(Plugins.java:22) ~[mockito-core-5.3.1.jar:na]
at org.mockito.internal.MockitoCore.<clinit>(MockitoCore.java:73) ~[mockito-core-5.3.1.jar:na]
at org.mockito.Mockito.<clinit>(Mockito.java:1683) ~[mockito-core-5.3.1.jar:na]
at org.springframework.boot.test.mock.mockito.MockReset.get(MockReset.java:105) ~[spring-boot-test-3.1.0.jar:3.1.0]
... 72 common frames omitted
Caused by: java.lang.reflect.InvocationTargetException: null
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:79) ~[na:na]
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500) ~[na:na]
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:484) ~[na:na]
at org.mockito.internal.configuration.plugins.DefaultMockitoPlugins.create(DefaultMockitoPlugins.java:102) ~[mockito-core-5.3.1.jar:na]
... 80 common frames omitted
Caused by: org.mockito.exceptions.base.MockitoInitializationException: 
Could not initialize inline Byte Buddy mock maker.

It appears as if your JDK does not supply a working agent attachment mechanism.
Java               : 19
JVM vendor name    : Oracle Corporation
JVM vendor version : 19.0.2+7-44
JVM name           : Java HotSpot(TM) 64-Bit Server VM
JVM version        : 19.0.2+7-44
JVM info           : mixed mode, sharing
OS name            : Windows 11
OS version         : 10.0

 

 

[오류 내용]

 

오류 내용을 살펴보니 Plugins.Mockito라는 인터페이스를 찾을 수 없다는 것 이다.

그래서 정말 많이 찾아봤다.

의존성 추가도 해보고 별의 별 짓을 다 해봤는데 오류가 계속 뜨더라

 

 

라이브러리를 찾아봐도 Mockito- core는 존재했음에도 인식을 여전히 하지 못하더라

 

 

그래서 스프링부트가 인식을 못하는 것이 아닐까 생각했다.

 

내가 쓰는 스프링 부트는 3.1버전이였다.

그래서 생각했다.

이 3.1버전이 Mocktio를 인식하지 못하는 것이 아닐까 했는데...

 

 

[오류 해결]

 

 

이 스프링 부트 3.1.0버전을

 

 

 

 

2.6.7로 내렸다. 내리니까 그 후에는 테스트가 잘 되는걸 확인 할 수 있었다.

원인은 스프링부트가 이 SpringBootTest를 실행할때 Mockito를 인식하지 못했던 것 .

 

 

Test가 잘 되는 것을 볼 수 있다.

여기서 느낀점은 무조건 버전이 높다고 좋다는 것은 아닌 것 ..