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引入了JUnit框架却报错找不到：java.lang.ClassNotFoundException

article 2024/11/15 11:29:38

完整报错如下：
Internal Error occurred.
org.junit.platform.commons.JUnitException: TestEngine with ID 'junit-jupiter' failed to discover tests
   at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverEngineRoot(EngineDiscoveryOrchestrator.java:160)
   at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverSafely(EngineDiscoveryOrchestrator.java:132)
   at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discover(EngineDiscoveryOrchestrator.java:107)
   at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discover(EngineDiscoveryOrchestrator.java:78)
   at org.junit.platform.launcher.core.DefaultLauncher.discover(DefaultLauncher.java:99)
   at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:85)
   at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:47)
   at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:63)
   at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57)
   at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
   at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
   at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
   at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
   at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
Caused by: java.lang.NoClassDefFoundError: org/junit/jupiter/api/io/CleanupMode
   at org.junit.jupiter.engine.JupiterTestEngine.discover(JupiterTestEngine.java:66)
   at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverEngineRoot(EngineDiscoveryOrchestrator.java:152)
   ... 13 more
Caused by: java.lang.ClassNotFoundException: org.junit.jupiter.api.io.CleanupMode
   at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
   at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
   at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:528)
   ... 15 more

这里引入了junit但是却报错，找不到，大概率版本问题，改一个版本即可