Hello,

I have installed Xwiki 8.4.4 on Wildfly 10.1. I have installed default wiki
pages.

I'm trying to add new group under "Addministration: Groups -> Add new group"
when logged with user admin and geting error popup "An error occured while
communicating with the server. Please check that the server is accessible,
and you have the proper rights to perform requested action."

In server.log I get the folowing messages:
2017-03-24 14:24:19,478 INFO  [org.restlet.Component.LogService]
(https://************/rest/wikis/xwiki/spaces/XWiki/pages/Visi) 2017-03-24   
14:24:19        ***.***.***.***  -       ***.***.***.***       443     GET    
/rest/wikis/xwiki/spaces/XWiki/pages/Visi       -       500     486     0      
3       https://************   Mozilla/5.0 (Windows NT 10.0; Win64; x64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.110 Safari/537.36     
https://************/bin/admin/XWiki/XWikiPreferences?editor=globaladmin&section=Groups
2017-03-24 14:26:47,617 WARNING
[org.restlet.Component.XWikiRestletJaxRsApplication]
(https://************/rest/wikis/xwiki/spaces/XWiki/pages/Visi) Exception or
error caught in status service: java.lang.AbstractMethodError:
javax.ws.rs.core.Response.getStatusInfo()Ljavax/ws/rs/core/Response$StatusType;
        at
javax.ws.rs.WebApplicationException.computeExceptionMessage(WebApplicationException.java:205)
        at
javax.ws.rs.WebApplicationException.<init>(WebApplicationException.java:179)
        at
javax.ws.rs.WebApplicationException.<init>(WebApplicationException.java:244)
        at
javax.ws.rs.WebApplicationException.<init>(WebApplicationException.java:133)
        at
org.xwiki.rest.XWikiResource.getDocumentInfo(XWikiResource.java:271)
        at
org.xwiki.rest.XWikiResource.getDocumentInfo(XWikiResource.java:215)
        at
org.xwiki.rest.internal.resources.pages.PageResourceImpl.getPage(PageResourceImpl.java:47)
        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.restlet.ext.jaxrs.internal.wrappers.AbstractMethodWrapper.internalInvoke(AbstractMethodWrapper.java:171)
        at
org.restlet.ext.jaxrs.internal.wrappers.ResourceMethod.invoke(ResourceMethod.java:291)
        at
org.restlet.ext.jaxrs.JaxRsRestlet.invokeMethod(JaxRsRestlet.java:1043)
        at org.restlet.ext.jaxrs.JaxRsRestlet.handle(JaxRsRestlet.java:792)
        at org.restlet.routing.Filter.doHandle(Filter.java:159)
        at org.restlet.routing.Filter.handle(Filter.java:206)
        at org.restlet.routing.Router.doHandle(Router.java:500)
        at org.restlet.routing.Router.handle(Router.java:740)
        at org.restlet.routing.Filter.doHandle(Filter.java:159)
        at org.restlet.routing.Filter.handle(Filter.java:206)
        at org.restlet.routing.Filter.doHandle(Filter.java:159)
        at org.restlet.routing.Filter.handle(Filter.java:206)
        at org.restlet.routing.Filter.doHandle(Filter.java:159)
        at org.restlet.routing.Filter.handle(Filter.java:206)
        at org.restlet.routing.Filter.doHandle(Filter.java:159)
        at org.restlet.routing.Filter.handle(Filter.java:206)
        at org.restlet.routing.Filter.doHandle(Filter.java:159)
        at
org.restlet.engine.application.StatusFilter.doHandle(StatusFilter.java:154)
        at org.restlet.routing.Filter.handle(Filter.java:206)
        at org.restlet.routing.Filter.doHandle(Filter.java:159)
        at org.restlet.routing.Filter.handle(Filter.java:206)
        at org.restlet.engine.ChainHelper.handle(ChainHelper.java:114)
        at
org.restlet.engine.application.ApplicationHelper.handle(ApplicationHelper.java:75)
        at org.restlet.Application.handle(Application.java:391)
        at org.restlet.routing.Filter.doHandle(Filter.java:159)
        at org.restlet.routing.Filter.handle(Filter.java:206)
        at org.restlet.routing.Router.doHandle(Router.java:500)
        at org.restlet.routing.Router.handle(Router.java:740)
        at org.restlet.routing.Filter.doHandle(Filter.java:159)
        at org.restlet.routing.Filter.handle(Filter.java:206)
        at org.restlet.routing.Router.doHandle(Router.java:500)
        at org.restlet.routing.Router.handle(Router.java:740)
        at org.restlet.routing.Filter.doHandle(Filter.java:159)
        at org.restlet.routing.Filter.handle(Filter.java:206)
        at org.restlet.engine.ChainHelper.handle(ChainHelper.java:114)
        at org.restlet.Component.handle(Component.java:391)
        at org.restlet.Server.handle(Server.java:491)
        at org.restlet.engine.ServerHelper.handle(ServerHelper.java:74)
        at
org.restlet.engine.http.HttpServerHelper.handle(HttpServerHelper.java:153)
        at
org.restlet.ext.servlet.ServerServlet.service(ServerServlet.java:1031)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at
io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
        at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
        at
org.xwiki.wysiwyg.server.filter.XWikiContextInitializationFilter.doFilter(XWikiContextInitializationFilter.java:85)
        at
io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
        at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
        at
org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
        at
io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
        at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
        at
org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
        at
io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
        at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
        at
org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
        at
io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
        at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
        at
org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:136)
        at
io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
        at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
        at
io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
        at
io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
        at
io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
        at
org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
        at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at
io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
        at
io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
        at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at
io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:53)
        at
io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
        at
io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
        at
io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:59)
        at
io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
        at
io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
        at
io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
        at
io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
        at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at
org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
        at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
        at
io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
        at
io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
        at
io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
        at
io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
        at
io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
        at
io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
        at
io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
        at
io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
        at
io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
        at
io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
        at
io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
        at
io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
        at
io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
        at
io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
        at
io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
        at
io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

2017-03-24 14:26:47,619 INFO  [org.restlet.Component.LogService]
(https://************/rest/wikis/xwiki/spaces/XWiki/pages/Visi) 2017-03-24   
14:26:47        ***.***.***.***  -       ***.***.***.***       443     GET    
/rest/wikis/xwiki/spaces/XWiki/pages/Visi       -       500     486     0      
4       https://************   Mozilla/5.0 (Windows NT 10.0; Win64; x64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.110 Safari/537.36     
https://************/bin/admin/XWiki/XWikiPreferences?editor=globaladmin&section=Groups


Can somone help to solve this problem?

Best Regards,
Eimantas



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