java.lang.ClassCastException: org.openide.filesystems.MultiFileObject$VoidValue cannot be cast to java.lang.String
        at org.netbeans.modules.editor.settings.storage.EditorSettingsImpl.getCurrentFontColorProfile(EditorSettingsImpl.java:233)
        at org.netbeans.modules.editor.settings.storage.SettingsProvider$MyLookup.<init>(SettingsProvider.java:155)
        at org.netbeans.modules.editor.settings.storage.SettingsProvider$MyLookup.<init>(SettingsProvider.java:145)
        at org.netbeans.modules.editor.settings.storage.SettingsProvider.getLookup(SettingsProvider.java:120)
        at org.netbeans.modules.editor.mimelookup.MimePathLookup.rebuild(MimePathLookup.java:101)
        at org.netbeans.modules.editor.mimelookup.MimePathLookup.<init>(MimePathLookup.java:89)
        at org.netbeans.api.editor.mimelookup.MimePath.getLookup(MimePath.java:509)
        at org.netbeans.api.editor.mimelookup.MimeLookup.getLookup(MimeLookup.java:112)
        at org.openide.text.CloneableEditorSupport.getEditorKit(CloneableEditorSupport.java:1561)
        at org.openide.text.CloneableEditorSupport.createEditorKit(CloneableEditorSupport.java:1583)
        at org.openide.text.CloneableEditorSupport.prepareDocument(CloneableEditorSupport.java:543)
        at org.openide.text.CloneableEditorSupport.openDocumentImpl(CloneableEditorSupport.java:718)
        at org.openide.text.CloneableEditorSupport.openDocumentCheckIOE(CloneableEditorSupport.java:700)
        at org.openide.text.CloneableEditorSupport.openDocument(CloneableEditorSupport.java:695)
        at org.netbeans.modules.xml.core.text.TextEditorSupport.edit(TextEditorSupport.java:524)
        at org.openide.actions.EditAction.performAction(EditAction.java:82)
        at org.openide.util.actions.NodeAction$DelegateAction$1.run(NodeAction.java:581)
        at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:77)
        at org.openide.util.actions.NodeAction$DelegateAction.actionPerformed(NodeAction.java:577)
        at org.openide.explorer.view.TreeView$PopupSupport.mouseClicked(TreeView.java:1439)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:253)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
        at java.awt.Component.processMouseEvent(Component.java:6041)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
        at java.awt.Component.processEvent(Component.java:5803)
        at java.awt.Container.processEvent(Container.java:2058)
        at java.awt.Component.dispatchEventImpl(Component.java:4410)
        at java.awt.Container.dispatchEventImpl(Container.java:2116)
        at java.awt.Component.dispatchEvent(Component.java:4240)
        at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4322)
        at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:3995)
        at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:3916)
        at java.awt.Container.dispatchEventImpl(Container.java:2102)
        at java.awt.Window.dispatchEventImpl(Window.java:2429)
        at java.awt.Component.dispatchEvent(Component.java:4240)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)