Access is allowed from event dispatch thread only.

[sis-yoshiday]

Product Infos
FindBugs: 3.0.1
FindBugs-IDEA: FindBugs-IDEA 1.0.0
IDEA: IntelliJ IDEA 2016.3 EAP
IDEA-Build: IU-163.6110.12, October 12, 2016
JRE: 1.8.0_112-release-b408 x86_64
JVM: OpenJDK 64-Bit Server VM JetBrains s.r.o

Access is allowed from event dispatch thread only.
EventQueue.isDispatchThread()=false isDispatchThread()=false Toolkit.getEventQueue()=com.intellij.ide.IdeEventQueue@496266b2 Current thread: Thread[JobScheduler FJ pool 0/4,4,main] 2057423623 SystemEventQueueThread: Thread[AWT-EventQueue-0 2016.3#IU-163.6110.12 IDEA, eap:true, os:Mac OS X 10.11.5, java-version:JetBrains s.r.o 1.8.0_112-release-b408,6,main] 1162059346

java.lang.Throwable
at com.intellij.util.ExceptionUtil.currentStackTrace(ExceptionUtil.java:65)
at com.intellij.psi.impl.DebugUtil.currentStackTrace(DebugUtil.java:501)
at com.intellij.diagnostic.LogEventException.(LogEventException.java:29)
at com.intellij.openapi.application.impl.ApplicationImpl.b(ApplicationImpl.java:1010)
at com.intellij.openapi.application.impl.ApplicationImpl.assertIsDispatchThread(ApplicationImpl.java:999)
at com.intellij.ui.content.impl.ContentManagerImpl.a(ContentManagerImpl.java:237)
at com.intellij.ui.content.impl.ContentManagerImpl.removeContent(ContentManagerImpl.java:210)
at com.intellij.ui.content.impl.ContentManagerImpl.removeAllContents(ContentManagerImpl.java:318)
at com.intellij.openapi.wm.impl.ToolWindowImpl.ensureContentInitialized(ToolWindowImpl.java:567)
at com.intellij.openapi.wm.impl.ToolWindowImpl.getContentManager(ToolWindowImpl.java:402)
at org.twodividedbyzero.idea.findbugs.gui.toolwindow.view.ToolWindowPanel.getInstance(ToolWindowPanel.java:419)
at org.twodividedbyzero.idea.findbugs.gui.toolwindow.view.ToolWindowPanel.getInstance(ToolWindowPanel.java:411)
at org.twodividedbyzero.idea.findbugs.gui.editor.BugAnnotator.annotate(BugAnnotator.java:68)
at com.intellij.codeInsight.daemon.impl.DefaultHighlightVisitor.a(DefaultHighlightVisitor.java:139)
at com.intellij.codeInsight.daemon.impl.DefaultHighlightVisitor.visit(DefaultHighlightVisitor.java:102)
at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.a(GeneralHighlightingPass.java:363)
at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.a(GeneralHighlightingPass.java:298)
at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.a(GeneralHighlightingPass.java:322)
at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.a(GeneralHighlightingPass.java:325)
at com.intellij.codeInsight.daemon.impl.analysis.HighlightVisitorImpl.a(HighlightVisitorImpl.java:173)
at com.intellij.codeInsight.daemon.impl.analysis.RefCountHolder.analyze(RefCountHolder.java:347)
at com.intellij.codeInsight.daemon.impl.analysis.HighlightVisitorImpl.analyze(HighlightVisitorImpl.java:172)
at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.a(GeneralHighlightingPass.java:325)
at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.a(GeneralHighlightingPass.java:325)
at com.intellij.codeInsight.daemon.impl.DefaultHighlightVisitor.analyze(DefaultHighlightVisitor.java:86)
at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.a(GeneralHighlightingPass.java:325)
at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.a(GeneralHighlightingPass.java:297)
at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.collectInformationWithProgress(GeneralHighlightingPass.java:237)
at com.intellij.codeInsight.daemon.impl.ProgressableTextEditorHighlightingPass.doCollectInformation(ProgressableTextEditorHighlightingPass.java:82)
at com.intellij.codeHighlighting.TextEditorHighlightingPass.collectInformation(TextEditorHighlightingPass.java:70)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.a(PassExecutorService.java:433)
at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1054)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.c(PassExecutorService.java:426)
at com.intellij.openapi.progress.impl.CoreProgressManager.a(CoreProgressManager.java:568)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:519)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:54)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.b(PassExecutorService.java:425)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.run(PassExecutorService.java:405)
at com.intellij.concurrency.JobLauncherImpl$VoidForkJoinTask$1.exec(JobLauncherImpl.java:155)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

[retomerz]

Thanks for report this issue.
This is fixed in version 1.0.1 (see issue #176).
Please update the plugin.