java.lang.NullPointerException
   at org.openide.util.lookup.ProxyLookup.lookup(ProxyLookup.java:222)
   at org.netbeans.modules.web.inspect.webkit.WebKitPageModel.<init>(WebKitPageModel.java:143)
   at org.netbeans.modules.web.inspect.PageInspectorImpl.inspectPage(PageInspectorImpl.java:153)
   at org.netbeans.modules.extbrowser.plugins.ExternalBrowserPlugin$BrowserPluginHandler$2.run(ExternalBrowserPlugin.java:565)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)