==> ametys-cms-2018-06-12.log <==
2018-06-12 11:10:21,575 ERROR [sitemap.handled-errors] (http-nio-8080-exec-7;/generate/ent/_plugins/link-directory/add-user-link) Sitemap: error when calling sub-sitemap
        at <map:mount> - resource://org/ametys/runtime/kernel/sitemap.xmap:151:82
        at <map:mount> - resource://org/ametys/runtime/kernel/sitemap.xmap:182:109
org.apache.cocoon.ProcessingException: Sitemap: error when calling sub-sitemap
        at <map:mount> - resource://org/ametys/runtime/kernel/sitemap.xmap:151:82
        at <map:mount> - resource://org/ametys/runtime/kernel/sitemap.xmap:182:109
        at org.apache.cocoon.ProcessingException.throwLocated(ProcessingException.java:113)
        at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:122)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
        at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:236)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.handleCocoonRedirect(ConcreteTreeProcessor.java:300)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.access$000(ConcreteTreeProcessor.java:49)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor$TreeProcessorRedirector.cocoonRedirect(ConcreteTreeProcessor.java:348)
        at org.apache.cocoon.environment.ForwardRedirector.redirect(ForwardRedirector.java:60)
        at org.apache.cocoon.components.treeprocessor.sitemap.RedirectToURINode.invoke(RedirectToURINode.java:70)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
        at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:236)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:178)
        at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:254)
        at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:118)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
        at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:236)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.handleCocoonRedirect(ConcreteTreeProcessor.java:300)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.access$000(ConcreteTreeProcessor.java:49)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor$TreeProcessorRedirector.cocoonRedirect(ConcreteTreeProcessor.java:348)
        at org.apache.cocoon.environment.ForwardRedirector.redirect(ForwardRedirector.java:60)
        at org.apache.cocoon.components.treeprocessor.sitemap.RedirectToURINode.invoke(RedirectToURINode.java:70)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
        at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:236)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:178)
        at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:254)
        at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:118)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
        at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:236)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:178)
        at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:254)
        at org.apache.cocoon.Cocoon.process(Cocoon.java:699)
        at org.ametys.runtime.servlet.RuntimeServlet.service(RuntimeServlet.java:543)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
        at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
        at org.apache.jackrabbit.core.query.lucene.ChildAxisQuery$ChildAxisScorer.calculateChildren(ChildAxisQuery.java:459)
        at org.apache.jackrabbit.core.query.lucene.ChildAxisQuery$ChildAxisScorer.nextDoc(ChildAxisQuery.java:396)
        at org.apache.lucene.search.Scorer.score(Scorer.java:89)
        at org.apache.jackrabbit.core.query.lucene.ChildAxisQuery$ChildAxisScorer.calculateChildren(ChildAxisQuery.java:459)
        at org.apache.jackrabbit.core.query.lucene.ChildAxisQuery$ChildAxisScorer.nextDoc(ChildAxisQuery.java:396)
        at org.apache.lucene.search.Scorer.score(Scorer.java:89)
        at org.apache.jackrabbit.core.query.lucene.ChildAxisQuery$ChildAxisScorer.calculateChildren(ChildAxisQuery.java:450)
        at org.apache.jackrabbit.core.query.lucene.ChildAxisQuery$ChildAxisScorer.nextDoc(ChildAxisQuery.java:396)
        at org.apache.lucene.search.ConjunctionScorer.<init>(ConjunctionScorer.java:42)
        at org.apache.lucene.search.ConjunctionScorer.<init>(ConjunctionScorer.java:33)
        at org.apache.lucene.search.BooleanScorer2$2.<init>(BooleanScorer2.java:178)
        at org.apache.lucene.search.BooleanScorer2.countingConjunctionSumScorer(BooleanScorer2.java:173)
        at org.apache.lucene.search.BooleanScorer2.makeCountingSumScorerSomeReq(BooleanScorer2.java:234)
        at org.apache.lucene.search.BooleanScorer2.makeCountingSumScorer(BooleanScorer2.java:211)
        at org.apache.lucene.search.BooleanScorer2.<init>(BooleanScorer2.java:101)
        at org.apache.lucene.search.BooleanQuery$BooleanWeight.scorer(BooleanQuery.java:328)
        at org.apache.jackrabbit.core.query.lucene.LuceneQueryHits.<init>(LuceneQueryHits.java:52)
        at org.apache.jackrabbit.core.query.lucene.JackrabbitIndexSearcher.evaluate(JackrabbitIndexSearcher.java:107)
        at org.apache.jackrabbit.core.query.lucene.JackrabbitIndexSearcher.execute(JackrabbitIndexSearcher.java:86)
        at org.apache.jackrabbit.core.query.lucene.SearchIndex.executeQuery(SearchIndex.java:876)
        at org.apache.jackrabbit.core.query.lucene.SingleColumnQueryResult.executeQuery(SingleColumnQueryResult.java:74)
        at org.apache.jackrabbit.core.query.lucene.QueryResultImpl.getResults(QueryResultImpl.java:289)
        at org.apache.jackrabbit.core.query.lucene.SingleColumnQueryResult.<init>(SingleColumnQueryResult.java:66)
        at org.apache.jackrabbit.core.query.lucene.QueryImpl.execute(QueryImpl.java:138)
        at org.apache.jackrabbit.core.query.QueryImpl$1.perform(QueryImpl.java:132)
        at org.apache.jackrabbit.core.query.QueryImpl$1.perform(QueryImpl.java:129)
        at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216)
        at org.apache.jackrabbit.core.query.QueryImpl.execute(QueryImpl.java:128)
        at org.ametys.plugins.repository.AmetysObjectResolver.query(AmetysObjectResolver.java:673)
        at org.ametys.plugins.repository.AmetysObjectResolver.query(AmetysObjectResolver.java:637)
        at org.ametys.plugins.linkdirectory.link.LinkDAO._urlExistsForUser(LinkDAO.java:768)
        at org.ametys.plugins.linkdirectory.link.LinkDAO.createUserLink(LinkDAO.java:205)
        at org.ametys.plugins.linkdirectory.link.AddUserLinkAction._createUserLink(AddUserLinkAction.java:108)
        at org.ametys.plugins.linkdirectory.link.AddUserLinkAction.act(AddUserLinkAction.java:76)
        at org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTypeNode.java:125)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47)
        at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:108)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
        at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:69)
        at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:93)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:236)
        at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:178)
        at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:254)
        at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:118)
        ... 77 more