java.lang.NullPointerException at org.netbeans.modules.web.jsf.editor.JsfHtmlExtension.getUriForPrefix(JsfHtmlExtension.java:313) at org.netbeans.modules.web.jsf.editor.JsfHtmlExtension.completeAttributes(JsfHtmlExtension.java:347) at org.netbeans.modules.html.editor.completion.HtmlCompletionQuery.query(HtmlCompletionQuery.java:475) at org.netbeans.modules.html.editor.completion.HtmlCompletionQuery$1.run(HtmlCompletionQuery.java:140) at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1404) at org.netbeans.modules.html.editor.completion.HtmlCompletionQuery.run(HtmlCompletionQuery.java:132) at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:649) at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:154) at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:138) at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:217) at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:214) at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:168) at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:356) at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:71) Caused: org.netbeans.modules.parsing.spi.ParseException at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:222) at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:106) at org.netbeans.modules.html.editor.completion.HtmlCompletionQuery.query(HtmlCompletionQuery.java:115) at org.netbeans.modules.html.editor.completion.HtmlCompletionProvider$Query.doQuery(HtmlCompletionProvider.java:131) at org.netbeans.modules.html.editor.completion.HtmlCompletionProvider$AbstractQuery.query(HtmlCompletionProvider.java:254) at org.netbeans.spi.editor.completion.support.AsyncCompletionTask.run(AsyncCompletionTask.java:223) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1973)