java.lang.StringIndexOutOfBoundsException: String index out of range: 59
   at java.lang.AbstractStringBuilder.substring(AbstractStringBuilder.java:870)
   at java.lang.StringBuilder.substring(StringBuilder.java:72)
   at java.lang.AbstractStringBuilder.subSequence(AbstractStringBuilder.java:849)
   at java.lang.StringBuilder.subSequence(StringBuilder.java:72)
   at org.netbeans.modules.html.parser.ElementsFactory$CommonAttribute.name(ElementsFactory.java:854)
   at org.netbeans.modules.html.parser.ElementsFactory$EmptyOpenTag.getAttribute(ElementsFactory.java:274)
   at org.netbeans.modules.html.editor.gsf.HtmlStructureScanner$HtmlStructureItem._getAttributeValue(HtmlStructureScanner.java:381)
   at org.netbeans.modules.html.editor.gsf.HtmlStructureScanner$HtmlStructureItem.getAttributeValue(HtmlStructureScanner.java:368)
   at org.netbeans.modules.html.editor.gsf.HtmlStructureScanner$HtmlStructureItem.<init>(HtmlStructureScanner.java:228)
   at org.netbeans.modules.html.editor.gsf.HtmlStructureScanner$HtmlStructureItem.<init>(HtmlStructureScanner.java:209)
   at org.netbeans.modules.html.editor.gsf.HtmlStructureScanner$HtmlStructureItem$1.run(HtmlStructureScanner.java:337)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:583)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:150)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:134)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:200)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:197)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:168)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:72)
Caused: org.netbeans.modules.parsing.spi.ParseException
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:205)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:102)
   at org.netbeans.modules.html.editor.gsf.HtmlStructureScanner$HtmlStructureItem.getNestedItems(HtmlStructureScanner.java:310)
   at org.netbeans.modules.html.editor.gsf.HtmlStructureScanner$HtmlStructureItem.isLeaf(HtmlStructureScanner.java:300)
   at org.netbeans.modules.csl.navigation.ElementNode.<init>(ElementNode.java:105)
   at org.netbeans.modules.csl.navigation.ElementNode$ElementChildren.createNodes(ElementNode.java:347)
   at org.netbeans.modules.csl.navigation.ElementNode$ElementChildren.createNodes(ElementNode.java:336)
   at org.openide.nodes.Children$Keys$KE.nodes(Children.java:1661)
   at org.openide.nodes.ChildrenArray.nodesFor(ChildrenArray.java:149)
   at org.openide.nodes.EntrySupport$Default$Info.nodes(EntrySupport.java:943)
   at org.openide.nodes.EntrySupport$Default.justComputeNodes(EntrySupport.java:253)
   at org.openide.nodes.ChildrenArray.nodes(ChildrenArray.java:88)
   at org.openide.nodes.EntrySupport$Default.getNodes(EntrySupport.java:183)
   at org.openide.nodes.EntrySupport$Default.snapshot(EntrySupport.java:149)
   at org.openide.nodes.Children.snapshot(Children.java:532)
   at org.openide.explorer.view.TreeView.expandNode(TreeView.java:608)
   at org.netbeans.modules.csl.navigation.ClassMemberPanelUI.expandNode(ClassMemberPanelUI.java:274)
   at org.netbeans.modules.csl.navigation.ClassMemberPanelUI.expandNodeByDefault(ClassMemberPanelUI.java:301)
   at org.netbeans.modules.csl.navigation.ClassMemberPanelUI.expandNodeByDefaultRecursively(ClassMemberPanelUI.java:286)
   at org.netbeans.modules.csl.navigation.ClassMemberPanelUI.expandNodeByDefaultRecursively(ClassMemberPanelUI.java:290)
   at org.netbeans.modules.csl.navigation.ClassMemberPanelUI.expandNodeByDefaultRecursively(ClassMemberPanelUI.java:279)
   at org.netbeans.modules.csl.navigation.ElementNode.updateRecursively(ElementNode.java:306)
   at org.netbeans.modules.csl.navigation.ClassMemberPanelUI.refresh(ClassMemberPanelUI.java:224)
   at org.netbeans.modules.csl.navigation.ElementScanningTask$3.run(ElementScanningTask.java:204)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1452)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2032)