Not sure what action may have triggered this as I did not notice it until later in the day. It happened tywice with same stacktrace, just a slightly different message:
com.intellij.diagnostic.PluginException: Folding descriptor (24199,24206) for AST: PsiDocToken:DOC_COMMENT_DATA, containing PSI element PsiDocToken:DOC_COMMENT_DATA of class com.intellij.psi.impl.source.javadoc.PsiDocTokenImpl, provided by com.github.artsiomch.jdcr.JdcrFoldingBuilder@6acf0aa (class com.github.artsiomch.jdcr.JdcrFoldingBuilder) must belong to the file PsiJavaFile:AuthenticationFilter.java, but got: PsiJavaFile:MySqlAuthorizationDao.java [Plugin: com.github.ArtsiomCh.JDCleanRead]
com.intellij.diagnostic.PluginException: Folding descriptor (892,899) for AST: PsiDocToken:DOC_COMMENT_DATA, containing PSI element PsiDocToken:DOC_COMMENT_DATA of class com.intellij.psi.impl.source.javadoc.PsiDocTokenImpl, provided by com.github.artsiomch.jdcr.JdcrFoldingBuilder@6acf0aa (class com.github.artsiomch.jdcr.JdcrFoldingBuilder) must belong to the file PsiJavaFile:MySqlAuthorizationDao.java, but got: PsiJavaFile:AuthenticationFilter.java [Plugin: com.github.ArtsiomCh.JDCleanRead]
com.intellij.diagnostic.PluginException: Folding descriptor (24199,24206) for AST: PsiDocToken:DOC_COMMENT_DATA, containing PSI element PsiDocToken:DOC_COMMENT_DATA of class com.intellij.psi.impl.source.javadoc.PsiDocTokenImpl, provided by com.github.artsiomch.jdcr.JdcrFoldingBuilder@6acf0aa (class com.github.artsiomch.jdcr.JdcrFoldingBuilder) must belong to the file PsiJavaFile:AuthenticationFilter.java, but got: PsiJavaFile:MySqlAuthorizationDao.java [Plugin: com.github.ArtsiomCh.JDCleanRead]
at com.intellij.diagnostic.PluginProblemReporterImpl.createPluginExceptionByClass(PluginProblemReporterImpl.java:23)
at com.intellij.diagnostic.PluginException.createByClass(PluginException.java:99)
at com.intellij.lang.folding.CompositeFoldingBuilder.assertSameFile(CompositeFoldingBuilder.java:61)
at com.intellij.lang.folding.CompositeFoldingBuilder.buildFoldRegions(CompositeFoldingBuilder.java:44)
at com.intellij.lang.folding.LanguageFolding.buildFoldingDescriptorsNoPlaceholderCaching(LanguageFolding.java:92)
at com.intellij.lang.folding.LanguageFolding.buildFoldingDescriptors(LanguageFolding.java:74)
at com.intellij.codeInsight.folding.impl.FoldingUpdate.getFoldingsFor(FoldingUpdate.java:272)
at com.intellij.codeInsight.folding.impl.FoldingUpdate.getFoldingsFor(FoldingUpdate.java:240)
at com.intellij.codeInsight.folding.impl.CodeFoldingManagerImpl.buildInitialFoldings(CodeFoldingManagerImpl.java:138)
at com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorImpl$loadEditorInBackground$2$1$1.invoke(PsiAwareTextEditorImpl.kt:78)
at com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorImpl$loadEditorInBackground$2$1$1.invoke(PsiAwareTextEditorImpl.kt:77)
at com.intellij.openapi.progress.CoroutinesKt.jobToIndicator$lambda$1(coroutines.kt:386)
at com.intellij.openapi.progress.ProgressManager.lambda$runProcess$0(ProgressManager.java:71)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:186)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$executeProcessUnderProgress$13(CoreProgressManager.java:604)
at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:679)
at com.intellij.openapi.progress.impl.CoreProgressManager.computeUnderProgress(CoreProgressManager.java:635)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:603)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:61)
at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:173)
at com.intellij.openapi.progress.ProgressManager.runProcess(ProgressManager.java:71)
at com.intellij.openapi.progress.CoroutinesKt.jobToIndicator(coroutines.kt:374)
at com.intellij.openapi.progress.CoroutinesKt.contextToIndicator(coroutines.kt:347)
at com.intellij.openapi.progress.CoroutinesKt.blockingContextToIndicator(coroutines.kt:340)
at com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorImpl$loadEditorInBackground$2.invoke(PsiAwareTextEditorImpl.kt:77)
at com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorImpl$loadEditorInBackground$2.invoke(PsiAwareTextEditorImpl.kt:74)
at com.intellij.openapi.application.rw.InternalReadAction.insideReadAction(InternalReadAction.kt:105)
at com.intellij.openapi.application.rw.InternalReadAction.access$insideReadAction(InternalReadAction.kt:14)
at com.intellij.openapi.application.rw.InternalReadAction$tryReadCancellable$2.invoke(InternalReadAction.kt:95)
at com.intellij.openapi.application.rw.InternalReadAction$tryReadCancellable$2.invoke(InternalReadAction.kt:94)
at com.intellij.openapi.application.rw.CancellableReadActionKt$cancellableReadActionInternal$1.invoke$lambda$1$lambda$0(cancellableReadAction.kt:41)
at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1133)
at com.intellij.openapi.application.rw.CancellableReadActionKt$cancellableReadActionInternal$1.invoke$lambda$1(cancellableReadAction.kt:39)
at com.intellij.openapi.progress.util.ProgressIndicatorUtilService.runActionAndCancelBeforeWrite(ProgressIndicatorUtilService.java:63)
at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runActionAndCancelBeforeWrite(ProgressIndicatorUtils.java:133)
at com.intellij.openapi.application.rw.CancellableReadActionKt$cancellableReadActionInternal$1.invoke(cancellableReadAction.kt:37)
at com.intellij.openapi.progress.CoroutinesKt.blockingContext(coroutines.kt:248)
at com.intellij.openapi.application.rw.CancellableReadActionKt.cancellableReadActionInternal(cancellableReadAction.kt:34)
at com.intellij.openapi.application.rw.InternalReadAction.tryReadCancellable(InternalReadAction.kt:94)
at com.intellij.openapi.application.rw.InternalReadAction.tryReadAction(InternalReadAction.kt:76)
at com.intellij.openapi.application.rw.InternalReadAction.readLoop(InternalReadAction.kt:63)
at com.intellij.openapi.application.rw.InternalReadAction.access$readLoop(InternalReadAction.kt:14)
at com.intellij.openapi.application.rw.InternalReadAction$runReadAction$4.invokeSuspend(InternalReadAction.kt:42)
at com.intellij.openapi.application.rw.InternalReadAction$runReadAction$4.invoke(InternalReadAction.kt)
at com.intellij.openapi.application.rw.InternalReadAction$runReadAction$4.invoke(InternalReadAction.kt)
at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:78)
at kotlinx.coroutines.BuildersKt__Builders_commonKt.withContext(Builders.common.kt:167)
at kotlinx.coroutines.BuildersKt.withContext(Unknown Source)
at com.intellij.openapi.application.rw.InternalReadAction.runReadAction(InternalReadAction.kt:38)
at com.intellij.openapi.application.rw.PlatformReadWriteActionSupport.executeReadAction(PlatformReadWriteActionSupport.kt:38)
at com.intellij.openapi.application.ReadWriteActionSupport.executeReadAction$default(ReadWriteActionSupport.kt:15)
at com.intellij.openapi.application.CoroutinesKt.constrainedReadAction(coroutines.kt:58)
at com.intellij.openapi.application.CoroutinesKt.readAction(coroutines.kt:25)
at com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorImpl.loadEditorInBackground$suspendImpl(PsiAwareTextEditorImpl.kt:74)
at com.intellij.openapi.fileEditor.impl.text.PsiAwareTextEditorImpl.loadEditorInBackground(PsiAwareTextEditorImpl.kt)
at com.intellij.openapi.fileEditor.impl.text.AsyncEditorLoader$start$continuationDeferred$1.invokeSuspend(AsyncEditorLoader.kt:116)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:584)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:793)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:697)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:684)
Caused by: java.lang.IllegalStateException: Folding descriptor (24199,24206) for AST: PsiDocToken:DOC_COMMENT_DATA, containing PSI element PsiDocToken:DOC_COMMENT_DATA of class com.intellij.psi.impl.source.javadoc.PsiDocTokenImpl, provided by com.github.artsiomch.jdcr.JdcrFoldingBuilder@6acf0aa (class com.github.artsiomch.jdcr.JdcrFoldingBuilder) must belong to the file PsiJavaFile:AuthenticationFilter.java, but got: PsiJavaFile:MySqlAuthorizationDao.java
at com.intellij.lang.folding.CompositeFoldingBuilder.assertSameFile(CompositeFoldingBuilder.java:63)
... 59 more