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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)