java.lang.IllegalArgumentException: C:\NetBeansProjects\ServletExamples1\web\WEB-INF is not inside C:\NetBeansProjects\ServletExamples1\web
        at org.netbeans.spi.project.support.ant.SourcesHelper$SourceRoot$Group.contains(SourcesHelper.java:176)
        at org.netbeans.modules.web.project.ui.DocBaseNodeFactory$VisibilityQueryDataFilter.acceptDataObject(DocBaseNodeFactory.java:386)
        at org.openide.loaders.FolderChildren.createNodes(FolderChildren.java:199)
        at org.openide.loaders.FolderChildren.createNodes(FolderChildren.java:66)
        at org.openide.nodes.Children$Keys$KE.nodes(Children.java:1526)
        at org.openide.nodes.EntrySupport$Lazy$EntryInfo.refreshNode(EntrySupport.java:1466)
        at org.openide.nodes.EntrySupport$Lazy$EntryInfo.getNode(EntrySupport.java:1450)
        at org.openide.nodes.EntrySupport$Lazy.setEntries(EntrySupport.java:1296)
        at org.openide.nodes.Children$Keys$2.run(Children.java:1420)
        at org.openide.util.Mutex.postRequest(Mutex.java:1262)
        at org.openide.util.Mutex.postWriteRequest(Mutex.java:582)
        at org.openide.nodes.Children$Keys.applyKeys(Children.java:1429)
        at org.openide.nodes.Children$Keys.setKeys(Children.java:1373)
        at org.openide.loaders.FolderChildren.access$400(FolderChildren.java:66)
        at org.openide.loaders.FolderChildren$1R.run(FolderChildren.java:165)
        at org.openide.util.Mutex.postRequest(Mutex.java:1251)
        at org.openide.util.Mutex.postWriteRequest(Mutex.java:582)
        at org.openide.loaders.FolderChildren$1R.run(FolderChildren.java:147)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)