I regularly get the following exception from the GitLab Template Lint plugin in the IDE Internal Errors:
Access is allowed from event dispatch thread only
com.intellij.openapi.diagnostic.RuntimeExceptionWithAttachments: EventQueue.isDispatchThread()=false
Current thread: Thread[ApplicationImpl pooled thread 380,4,main] 168861003
SystemEventQueueThread: Thread[AWT-EventQueue-0,6,main] 332416601
at com.intellij.openapi.application.impl.ApplicationImpl.throwThreadAccessException(ApplicationImpl.java:1110)
at com.intellij.openapi.application.impl.ApplicationImpl.assertIsDispatchThread(ApplicationImpl.java:1093)
at com.intellij.dvcs.DvcsUtil.guessCurrentRepositoryQuick(DvcsUtil.java:278)
at com.github.blarc.gitlab.template.lint.plugin.GitlabLintRunner.run(GitlabLintRunner.kt:30)
at com.github.blarc.gitlab.template.lint.plugin.inspections.GitlabLintInspector$buildVisitor$1$visitFile$$inlined$runBackgroundableTask$default$1.run(progress.kt:42)
at com.intellij.openapi.progress.impl.CoreProgressManager.startTask(CoreProgressManager.java:442)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.startTask(ProgressManagerImpl.java:114)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcessWithProgressAsynchronously$5(CoreProgressManager.java:493)
at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$3(ProgressRunner.java:252)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:188)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$executeProcessUnderProgress$12(CoreProgressManager.java:608)
at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:683)
at com.intellij.openapi.progress.impl.CoreProgressManager.computeUnderProgress(CoreProgressManager.java:639)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:607)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:60)
at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:175)
at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$4(ProgressRunner.java:252)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:702)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:699)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:699)
at java.base/java.lang.Thread.run(Thread.java:833)