java.lang.ClassNotFoundException: org.netbeans.modules.gsf.GsfOptions
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(AccessController.java:0)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:252)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at org.netbeans.modules.settings.convertors.XMLSettingsSupport$SettingsRecognizer.loadClass(XMLSettingsSupport.java:707)
        at org.netbeans.modules.settings.convertors.XMLSettingsSupport$SettingsRecognizer.createFromMethod(XMLSettingsSupport.java:657)
        at org.netbeans.modules.settings.convertors.XMLSettingsSupport$SettingsRecognizer.instanceCreate(XMLSettingsSupport.java:579)
        at org.netbeans.modules.settings.convertors.SerialDataConvertor$SettingsInstance.instanceCreate(SerialDataConvertor.java:415)
        at org.netbeans.modules.editor.mimelookup.impl.FolderPathLookup$ICItem.getInstance(FolderPathLookup.java:258)
        at org.openide.util.lookup.AbstractLookup.lookup(AbstractLookup.java:378)
        at org.openide.util.lookup.ProxyLookup.lookup(ProxyLookup.java:184)
        at org.netbeans.modules.editor.mimelookup.impl.SwitchLookup.lookup(SwitchLookup.java:99)
        at org.openide.util.lookup.ProxyLookup.lookup(ProxyLookup.java:184)
        at org.netbeans.modules.editor.deprecated.pre61settings.KitchenSink.getIndentEngineValue(KitchenSink.java:188)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.netbeans.modules.editor.lib.SettingsConversions.callFactory(SettingsConversions.java:194)
        at org.netbeans.modules.editor.impl.ComplexValueSettingsFactory.getFormatterValue(ComplexValueSettingsFactory.java:100)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.netbeans.modules.editor.lib.SettingsConversions.callFactory(SettingsConversions.java:194)
        at org.netbeans.editor.BaseDocument.getLegacyFormatter(BaseDocument.java:574)
        at org.netbeans.editor.BaseDocument.getFormatter(BaseDocument.java:589)
        at org.netbeans.editor.BaseKit$InsertBreakAction.actionPerformed(BaseKit.java:1188)
        at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:291)
        at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1571)
        at javax.swing.JComponent.processKeyBinding(JComponent.java:2772)
        at javax.swing.JComponent.processKeyBindings(JComponent.java:2807)
        at javax.swing.JComponent.processKeyEvent(JComponent.java:2735)
        at java.awt.Component.processEvent(Component.java:5294)
        at java.awt.Container.processEvent(Container.java:1966)
        at java.awt.Component.dispatchEventImpl(Component.java:3984)
        at java.awt.Container.dispatchEventImpl(Container.java:2024)
        at java.awt.Component.dispatchEvent(Component.java:3819)
        at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1826)
        at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:681)
        at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:938)
        at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:810)
        at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:645)
        at java.awt.Component.dispatchEventImpl(Component.java:3857)
        at java.awt.Container.dispatchEventImpl(Container.java:2024)
        at java.awt.Window.dispatchEventImpl(Window.java:1791)
        at java.awt.Component.dispatchEvent(Component.java:3819)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)