java.lang.AssertionError
   at org.netbeans.modules.web.common.api.WebUtils.findRelativeLinkBase(WebUtils.java:165)
   at org.netbeans.modules.web.common.api.WebUtils.resolveToReference(WebUtils.java:118)
   at org.netbeans.modules.html.editor.indexing.HtmlLinkEntry.<init>(HtmlLinkEntry.java:56)
   at org.netbeans.modules.html.editor.indexing.HtmlFileModel.createFileReferenceEntry(HtmlFileModel.java:179)
   at org.netbeans.modules.html.editor.indexing.HtmlFileModel$ReferencesSearch.visit(HtmlFileModel.java:195)
   at org.netbeans.editor.ext.html.parser.AstNodeUtils.visitChildren(AstNodeUtils.java:374)
   at org.netbeans.editor.ext.html.parser.AstNodeUtils.visitChildren(AstNodeUtils.java:376)
   at org.netbeans.editor.ext.html.parser.AstNodeUtils.visitChildren(AstNodeUtils.java:376)
   at org.netbeans.modules.html.editor.indexing.HtmlFileModel.init(HtmlFileModel.java:144)
   at org.netbeans.modules.html.editor.indexing.HtmlFileModel.<init>(HtmlFileModel.java:95)
   at org.netbeans.modules.html.editor.indexing.HtmlIndexer.index(HtmlIndexer.java:80)
   at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor$3.run(Indexable.java:205)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runIndexer(RepositoryUpdater.java:231)
   at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor.index(Indexable.java:203)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$3.run(RepositoryUpdater.java:1885)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$3.run(RepositoryUpdater.java:1900)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:151)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:135)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:190)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:103)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.indexEmbedding(RepositoryUpdater.java:1858)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doIndex(RepositoryUpdater.java:1694)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.access$1200(RepositoryUpdater.java:1403)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$2.run(RepositoryUpdater.java:1571)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$2.run(RepositoryUpdater.java:1569)
   at org.netbeans.modules.parsing.impl.indexing.errors.TaskCache.refreshTransaction(TaskCache.java:450)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:1569)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSource(RepositoryUpdater.java:3180)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSources(RepositoryUpdater.java:3082)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RootsWork.getDone(RepositoryUpdater.java:2833)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:1975)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:3552)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:3494)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:574)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:0)
   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:0)
   at java.util.concurrent.FutureTask.run(FutureTask.java:0)
   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:0)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:0)
   at java.lang.Thread.run(Thread.java:0)