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java.util.ConcurrentModificationException: 	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)	at java.util.HashMap$KeyIterator.next(HashMap.java:1453)	at jetbrains.mps.smodel.language.LanguageRegistry.getLanguage(LanguageRegistry.java:297)	at jetbrains.mps.editor.runtime.style.StyleAttributes.getAttribute(StyleAttributes.java:119)	at de.itemis.mps.editor.celllayout.styles.editor.LayoutStylesUtil.getBottomBorderSize(LayoutStylesUtil.java:46)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorder(BorderPainter.java:74)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorders(BorderPainter.java:59)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorders(BorderPainter.java:65)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorders(BorderPainter.java:65)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorders(BorderPainter.java:65)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorders(BorderPainter.java:65)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorders(BorderPainter.java:65)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorders(BorderPainter.java:65)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorders(BorderPainter.java:65)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorders(BorderPainter.java:65)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paintBorders(BorderPainter.java:65)	at de.itemis.mps.editor.celllayout.runtime.BorderPainter.paint(BorderPainter.java:35)	at jetbrains.mps.nodeEditor.EditorComponent.paintComponent(EditorComponent.java:2232)	at javax.swing.JComponent.paint(JComponent.java:1056)	at jetbrains.mps.nodeEditor.EditorComponent.paint(EditorComponent.java:2562)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JViewport.paint(JViewport.java:728)	at com.intellij.ui.components.JBViewport.paint(JBViewport.java:171)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at com.intellij.ui.tabs.impl.JBTabsImpl.paintChildren(JBTabsImpl.java:2316)	at javax.swing.JComponent.paint(JComponent.java:1065)	at com.intellij.ui.tabs.impl.JBTabsImpl.paint(JBTabsImpl.java:2311)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JLayeredPane.paint(JLayeredPane.java:586)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at com.intellij.openapi.wm.impl.ToolWindowsPane.paintChildren(ToolWindowsPane.java:190)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JLayeredPane.paint(JLayeredPane.java:586)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JLayeredPane.paint(JLayeredPane.java:586)	at javax.swing.JComponent.paintChildren(JComponent.java:889)	at javax.swing.JComponent.paint(JComponent.java:1065)	at javax.swing.JComponent.paintToOffscreen(JComponent.java:5210)	at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1579)	at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1502)	at javax.swing.RepaintManager.paint(RepaintManager.java:1272)	at javax.swing.JComponent._paintImmediately(JComponent.java:5158)	at javax.swing.JComponent.paintImmediately(JComponent.java:4969)	at javax.swing.RepaintManager$4.run(RepaintManager.java:831)	at javax.swing.RepaintManager$4.run(RepaintManager.java:814)	at java.security.AccessController.doPrivileged(Native Method)	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814)	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:789)	at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:738)	at javax.swing.RepaintManager.access$1200(RepaintManager.java:64)	at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1732)	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:863)	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:699)	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:385)	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)