java.lang.NoSuchMethodError: javax.servlet.ServletContext.getJspConfigDescriptor()Ljavax/servlet/descriptor/JspConfigDescriptor;
   at org.apache.jasper.compiler.JspConfig.processWebDotXml(JspConfig.java:104)
   at org.apache.jasper.compiler.JspConfig.init(JspConfig.java:194)
   at org.apache.jasper.compiler.JspConfig.findJspProperty(JspConfig.java:257)
   at org.apache.jasper.compiler.ExtractPageData.extractPageData(ExtractPageData.java:97)
   at org.apache.jasper.compiler.ExtractPageData.isXMLSyntax(ExtractPageData.java:77)
   at org.netbeans.modules.web.jspparser_ext.WebAppParseSupport.getJspOpenInfo(WebAppParseSupport.java:247)
   at org.netbeans.modules.web.jspparser.JspParserImpl.getJspOpenInfo(JspParserImpl.java:183)
   at org.netbeans.modules.web.core.jsploader.TagLibParseSupport.getCachedOpenInfo(TagLibParseSupport.java:271)
   at org.netbeans.modules.web.core.jsploader.JspDataObject.findFileEncoding(JspDataObject.java:304)
   at org.netbeans.modules.web.core.jsploader.JspDataObject.getFileEncoding(JspDataObject.java:293)
   at org.netbeans.modules.web.core.jsploader.JspDataObject$3.getEncoding(JspDataObject.java:186)
   at org.netbeans.modules.openide.loaders.DataObjectEncodingQueryImplementation.getEncoding(DataObjectEncodingQueryImplementation.java:118)
   at org.netbeans.api.queries.FileEncodingQuery.getEncoding(FileEncodingQuery.java:94)
   at org.netbeans.modules.parsing.api.Source.createSnapshot(Source.java:316)
   at org.netbeans.modules.parsing.impl.SourceCache.createSnapshot(SourceCache.java:156)
   at org.netbeans.modules.parsing.impl.SourceCache.getSnapshot(SourceCache.java:131)
   at org.netbeans.modules.parsing.api.ResultIterator.getSnapshot(ResultIterator.java:109)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$3.run(RepositoryUpdater.java:2355)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:643)
   at org.netbeans.modules.parsing.api.ParserManager$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:211)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:208)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:168)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:356)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:71)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:208)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:106)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.indexEmbedding(RepositoryUpdater.java:2352)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doIndex(RepositoryUpdater.java:2201)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.access$1500(RepositoryUpdater.java:1827)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$2.run(RepositoryUpdater.java:2028)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$2.run(RepositoryUpdater.java:2026)
   at org.netbeans.modules.parsing.impl.indexing.errors.TaskCache.refreshTransaction(TaskCache.java:460)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:2026)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSource(RepositoryUpdater.java:4069)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSources(RepositoryUpdater.java:3821)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RootsWork.getDone(RepositoryUpdater.java:3564)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:2505)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:4518)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:4455)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:618)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:728)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
   at java.util.concurrent.FutureTask.run(FutureTask.java:166)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
   at java.lang.Thread.run(Thread.java:722)