Please, describe as much as possible about of what the bug is. It will help to solve this issue faster.
StackTrace from IDE
java.util.ConcurrentModificationException: java.util.ConcurrentModificationException
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
at java.base/java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:562)
at java.base/java.util.concurrent.ForkJoinTask.reportException(ForkJoinTask.java:591)
at java.base/java.util.concurrent.ForkJoinTask.join(ForkJoinTask.java:672)
at com.intellij.concurrency.JobLauncherImpl.processQueue(JobLauncherImpl.java:360)
at com.intellij.codeInsight.daemon.impl.InspectionRunner.processInOrder(InspectionRunner.java:299)
at com.intellij.codeInsight.daemon.impl.InspectionRunner.visitElements(InspectionRunner.java:274)
at com.intellij.codeInsight.daemon.impl.InspectionRunner.lambda$inspect$4(InspectionRunner.java:129)
at com.intellij.codeInspection.InspectionEngine.withSession(InspectionEngine.java:227)
at com.intellij.codeInsight.daemon.impl.InspectionRunner.inspect(InspectionRunner.java:114)
at com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.collectInformationWithProgress(LocalInspectionsPass.java:115)
at com.intellij.codeInsight.daemon.impl.ProgressableTextEditorHighlightingPass.doCollectInformation(ProgressableTextEditorHighlightingPass.java:97)
at com.intellij.codeHighlighting.TextEditorHighlightingPass.collectInformation(TextEditorHighlightingPass.java:57)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$doRun$1(PassExecutorService.java:382)
at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1102)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$doRun$2(PassExecutorService.java:374)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$executeProcessUnderProgress$13(CoreProgressManager.java:604)
at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:679)
at com.intellij.openapi.progress.impl.CoreProgressManager.computeUnderProgress(CoreProgressManager.java:635)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:603)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:60)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.doRun(PassExecutorService.java:373)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$run$0(PassExecutorService.java:349)
at com.intellij.openapi.application.impl.ReadMostlyRWLock.executeByImpatientReader(ReadMostlyRWLock.java:229)
at com.intellij.openapi.application.impl.ApplicationImpl.executeByImpatientReader(ApplicationImpl.java:187)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.run(PassExecutorService.java:347)
at com.intellij.concurrency.JobLauncherImpl$VoidForkJoinTask$1.exec(JobLauncherImpl.java:181)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
Caused by: java.util.ConcurrentModificationException
at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1013)
at java.base/java.util.ArrayList$Itr.next(ArrayList.java:967)
at com.atwix.magento.feature.jsComponent.parser.UiComponentLibService.parseLib(UiComponentLibService.kt:129)
at com.atwix.magento.feature.jsComponent.parser.UiComponentLibService.getAllComponents(UiComponentLibService.kt:43)
at com.atwix.magento.feature.jsComponent.reference.provider.UiComponentReferenceProvider.getReferencesByElement(UiComponentReferenceProvider.kt:37)
at com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistryImpl.getReferences(ReferenceProvidersRegistryImpl.java:182)
at com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistryImpl.mapNotEmptyReferencesFromProviders(ReferenceProvidersRegistryImpl.java:163)
at com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistryImpl.doGetReferencesFromProviders(ReferenceProvidersRegistryImpl.java:142)
at com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistry.lambda$getReferencesFromProviders$0(ReferenceProvidersRegistry.java:39)
at com.intellij.psi.util.CachedValuesManager$1.compute(CachedValuesManager.java:158)
at com.intellij.psi.impl.PsiCachedValueImpl.doCompute(PsiCachedValueImpl.java:39)
at com.intellij.util.CachedValueBase.lambda$getValueWithLock$3(CachedValueBase.java:244)
at com.intellij.util.CachedValueBase.computeData(CachedValueBase.java:42)
at com.intellij.util.CachedValueBase.lambda$getValu
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