The site had already been refreshed several times and the file template-assignment.xml was not modified. So this does not appear to be a cache issue. However, we might want the _refreshValues method to be synchronized. Hitting f5 once again and the problem was gone, i can't tell how to reproduce this.
Message: Unable to get or create a ribbon manager for ribbon specific components at <map:serialize type="xml"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:120:44 at <map:generate type="workspace"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:117:64 at <map:serialize type="xhtml"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:251:47 at <map:transform type="minimizer"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:250:110 at <map:transform type="i18n"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:247:45 at <map:transform type="xslt"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:238:71 at <map:transform type="i18n"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:235:45 at <map:mount> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/01_RUNTIME/trunk/main/kernel/sitemap.xmap:181:109 Location: org.apache.cocoon.util.log.SLF4JLoggerAdapter.error(SLF4JLoggerAdapter.java:46) Thrown: org.apache.cocoon.ProcessingException: Unable to get or create a ribbon manager for ribbon specific components at <map:serialize type="xml"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:120:44 at <map:generate type="workspace"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:117:64 at <map:serialize type="xhtml"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:251:47 at <map:transform type="minimizer"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:250:110 at <map:transform type="i18n"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:247:45 at <map:transform type="xslt"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:238:71 at <map:transform type="i18n"> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/08_WEB/trunk/main/workspace-web/sitemap.xmap:235:45 at <map:mount> - file:/home/quentin/projects/Ametys/templates/CMSWEB/trunk/webapp/cms/../../../../../kernel/01_RUNTIME/trunk/main/kernel/sitemap.xmap:181:109 at org.ametys.plugins.core.ui.WorkspaceGenerator.doGenerate(WorkspaceGenerator.java:177) at org.ametys.web.workspace.WorkspaceGenerator.generate(WorkspaceGenerator.java:97) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:581) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:301) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:782) at org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:414) at org.apache.cocoon.components.source.SourceUtil.toSAX(SourceUtil.java:101) at org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:321) at org.apache.cocoon.sitemap.ContentAggregator.generate(ContentAggregator.java:125) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:581) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:301) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:483) at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:144) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:47) at org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTypeNode.java:139) 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:542) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668) at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:223) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1517) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1474) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.IllegalStateException: Unable to lookup client side element local components at org.ametys.web.clientsideelement.TemplatesMenu._getGalleryItems(TemplatesMenu.java:160) at org.ametys.core.ui.SimpleMenu.getScripts(SimpleMenu.java:159) at org.ametys.web.clientsideelement.TemplatesMenu.getScripts(TemplatesMenu.java:147) at org.ametys.core.ui.StaticFileImportsClientSideElement.getScripts(StaticFileImportsClientSideElement.java:317) at org.ametys.core.ui.RibbonConfigurationManager._resolveReferences(RibbonConfigurationManager.java:1147) at org.ametys.core.ui.RibbonConfigurationManager._createGroupForUser(RibbonConfigurationManager.java:1097) at org.ametys.core.ui.RibbonConfigurationManager._generateTabGroups(RibbonConfigurationManager.java:889) at org.ametys.core.ui.RibbonConfigurationManager.saxRibbonDefinition(RibbonConfigurationManager.java:822) at org.ametys.plugins.core.ui.WorkspaceGenerator.doGenerate(WorkspaceGenerator.java:172) ... 57 more Caused by: java.lang.NullPointerException at org.ametys.web.skin.StaticTemplatesAssignmentHandler.getAvailablesTemplates(StaticTemplatesAssignmentHandler.java:64) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.ametys.runtime.plugin.component.PluginsComponentManager$ComponentInvocationHandler.invoke(PluginsComponentManager.java:177) at com.sun.proxy.$Proxy17.getAvailablesTemplates(Unknown Source) at org.ametys.web.clientsideelement.TemplatesMenu._lazyInitializeTemplateGallery(TemplatesMenu.java:173) at org.ametys.web.clientsideelement.TemplatesMenu._getGalleryItems(TemplatesMenu.java:156) ... 65 more