java.lang.ClassCastException: org.netbeans.freemarker.parser.FTLParser$FTLParserResult cannot be cast to org.netbeans.modules.html.editor.api.gsf.HtmlParserResult
   at org.netbeans.modules.html.editor.gsf.HtmlStructureItem$1.run(HtmlStructureItem.java:169)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:609)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:153)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:137)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:204)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:201)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:141)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:88)
Caused: org.netbeans.modules.parsing.spi.ParseException
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:209)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:104)
   at org.netbeans.modules.html.editor.gsf.HtmlStructureItem.runTask(HtmlStructureItem.java:164)
   at org.netbeans.modules.html.editor.gsf.HtmlStructureItem.getNestedItems(HtmlStructureItem.java:196)
   at org.netbeans.modules.csl.navigation.ElementNode.updateRecursively(ElementNode.java:323)
   at org.netbeans.modules.csl.navigation.ElementNode.updateRecursively(ElementNode.java:329)
   at org.netbeans.modules.csl.navigation.ElementNode.updateRecursively(ElementNode.java:286)
   at org.netbeans.modules.csl.navigation.ClassMemberPanelUI$4.run(ClassMemberPanelUI.java:314)
   at org.openide.util.RequestProcessor$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)