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java.lang.NullPointerException at com.intellij.ui.tabs.impl.JBTabsImpl.addImpl(JBTabsImpl.java:2716) at java.awt.Container.add(Container.java:417) at com.intellij.ui.tabs.impl.JBTabsImpl.addTab(JBTabsImpl.java:777) at com.intellij.ui.tabs.impl.JBTabsImpl.addTab(JBTabsImpl.java:743) at com.intellij.ui.JBTabsPaneImpl.insertTab(JBTabsPaneImpl.java:107) at com.intellij.ui.TabbedPaneWrapper.insertTab(TabbedPaneWrapper.java:129) at com.intellij.ui.TabbedPaneWrapper.addTab(TabbedPaneWrapper.java:125) at com.intellij.ui.HeaderlessTabbedPane.addTab(HeaderlessTabbedPane.java:31) at com.intellij.diagnostic.IdeErrorsDialog.updateTabs(IdeErrorsDialog.java:663) at com.intellij.diagnostic.IdeErrorsDialog.updateControls(IdeErrorsDialog.java:425) at com.intellij.diagnostic.IdeErrorsDialog.updateOnSubmit(IdeErrorsDialog.java:949) at com.intellij.diagnostic.IdeMessagePanel$3$1.updateOnSubmit(IdeMessagePanel.java:129) at com.intellij.diagnostic.IdeErrorsDialog$BlameAction$1$1.run(IdeErrorsDialog.java:915) at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.runNextEvent(LaterInvocator.java:345) at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:329) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:726) at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:857) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:658) at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:386) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)