com.intellij.diagnostic.PluginException: Cannot create class fuck_you.a (classloader=PluginClassLoader(plugin=PluginDescriptor(name=BetterIntelliJ, id=org.example.BetterIntelliJ, descriptorPath=plugin.xml, path=~\AppData\Roaming\JetBrains\IntelliJIdea2021.2\plugins\BetterIntelliJ, version=1.16, package=null), packagePrefix=null, instanceId=3, state=active))
at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:870)
at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:887)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.instantiate(ActionManagerImpl.java:195)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.convertStub(ActionManagerImpl.java:180)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getActionImpl(ActionManagerImpl.java:518)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getAction(ActionManagerImpl.java:507)
at com.intellij.openapi.actionSystem.DefaultActionGroup.unStub(DefaultActionGroup.java:381)
at com.intellij.openapi.actionSystem.DefaultActionGroup.getChildren(DefaultActionGroup.java:341)
at com.intellij.openapi.actionSystem.ActionGroupStub.initGroup(ActionGroupStub.kt:34)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.convertGroupStub(ActionManagerImpl.java:229)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getActionImpl(ActionManagerImpl.java:518)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getAction(ActionManagerImpl.java:507)
at com.intellij.openapi.actionSystem.DefaultActionGroup.unStub(DefaultActionGroup.java:381)
at com.intellij.openapi.actionSystem.DefaultActionGroup.getChildren(DefaultActionGroup.java:341)
at com.intellij.openapi.actionSystem.DefaultActionGroup.getChildren(DefaultActionGroup.java:320)
at com.intellij.ide.ui.customization.CustomizationUtil.getReordableChildren(CustomizationUtil.java:69)
at com.intellij.ide.ui.customization.CustomisedActionGroup.getChildren(CustomisedActionGroup.java:48)
at com.intellij.openapi.wm.impl.IdeMenuBar.expandActionGroup(IdeMenuBar.java:484)
at com.intellij.openapi.wm.impl.IdeMenuBar.doUpdateMenuActions(IdeMenuBar.java:384)
at com.intellij.openapi.wm.impl.IdeMenuBar.lambda$addNotify$4(IdeMenuBar.java:276)
at com.intellij.openapi.wm.impl.IdeMenuBar.lambda$doWithLazyActionManager$5(IdeMenuBar.java:294)
at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:199)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:794)
at com.intellij.openapi.application.impl.ApplicationImpl.lambda$invokeLater$4(ApplicationImpl.java:350)
at com.intellij.openapi.application.impl.FlushQueue.doRun(FlushQueue.java:84)
at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:133)
at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:46)
at com.intellij.openapi.application.impl.FlushQueue$FlushNow.run(FlushQueue.java:189)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:776)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:727)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:746)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:885)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:754)
at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$6(IdeEventQueue.java:441)
at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:825)
at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$7(IdeEventQueue.java:440)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:794)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:486)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Caused by: java.lang.ExceptionInInitializerError
at java.base/jdk.internal.misc.Unsafe.allocateInstance(Native Method)
at java.base/java.lang.invoke.DirectMethodHandle.allocateInstance(DirectMethodHandle.java:482)
at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:830)
... 47 more
Caused by: java.lang.NullPointerException
at fuck_you.ag.a(Unknown Source)
at fuck_you.bz.a(Unknown Source)
at fuck_you.a.<clinit>(Unknown Source)
... 50 more
这个是idea的激活插件，你可以去掉，就是idea需要付费了，如果你是学生，只要申请学生认证即可，或者找一个教育邮箱注册一个idea账号登录idea使用正版就没事了
这种idea的激活方式早就失效了，自己再找找别的激活方式