java.lang.IllegalStateException: index 281300 is out of boundaries 1
   at org.netbeans.modules.css.formatting.api.embedding.JoinedTokenSequence.moveIndex(JoinedTokenSequence.java:86)
   at org.netbeans.modules.css.editor.indent.CssIndenter.getFormatStableStart(CssIndenter.java:127)
   at org.netbeans.modules.css.formatting.api.support.AbstractIndenter.calculateIndentation(AbstractIndenter.java:306)
   at org.netbeans.modules.css.formatting.api.support.AbstractIndenter.reindent(AbstractIndenter.java:201)
   at org.netbeans.modules.css.editor.indent.CssIndentTask.reindent(CssIndentTask.java:51)
   at org.netbeans.modules.editor.indent.TaskHandler$MimeItem.runTask(TaskHandler.java:546)
   at org.netbeans.modules.editor.indent.TaskHandler.runTasks(TaskHandler.java:316)
   at org.netbeans.modules.editor.indent.IndentImpl.reindent(IndentImpl.java:291)
   at org.netbeans.modules.editor.indent.api.Indent.reindent(Indent.java:171)
   at org.netbeans.modules.editor.indent.api.Indent.reindent(Indent.java:155)
   at org.netbeans.editor.BaseKit$InsertBreakAction.performLineBreakInsertion(BaseKit.java:1420)
   at org.netbeans.editor.BaseKit$InsertBreakAction.access$200(BaseKit.java:1290)
   at org.netbeans.editor.BaseKit$InsertBreakAction$1.run(BaseKit.java:1325)
   at org.netbeans.editor.GuardedDocument.runAtomicAsUser(GuardedDocument.java:344)
   at org.netbeans.editor.BaseKit$InsertBreakAction.actionPerformed(BaseKit.java:1316)
   at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:339)
   at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1639)
   at javax.swing.JComponent.processKeyBinding(JComponent.java:2851)
   at javax.swing.JComponent.processKeyBindings(JComponent.java:2886)
   at javax.swing.JComponent.processKeyEvent(JComponent.java:2814)
   at java.awt.Component.processEvent(Component.java:6129)
   at java.awt.Container.processEvent(Container.java:2085)
   at java.awt.Component.dispatchEventImpl(Component.java:4714)
   at java.awt.Container.dispatchEventImpl(Container.java:2143)
   at java.awt.Component.dispatchEvent(Component.java:4544)
   at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1850)
   at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:712)
   at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:990)
   at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:855)
   at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:676)
   at java.awt.Component.dispatchEventImpl(Component.java:4586)
   at java.awt.Container.dispatchEventImpl(Container.java:2143)
   at java.awt.Window.dispatchEventImpl(Window.java:2478)
   at java.awt.Component.dispatchEvent(Component.java:4544)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:635)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:148)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)