Type Exception Report
Message Illegal group reference
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
java.lang.IllegalArgumentException: Illegal group reference java.base/java.util.regex.Matcher.appendExpandedReplacement(Matcher.java:1067) java.base/java.util.regex.Matcher.appendReplacement(Matcher.java:997) java.base/java.util.regex.Matcher.replaceAll(Matcher.java:1181) com.atlassian.confluence.plugins.ia.filter.SpacePagesForwardingFilter.getSpacePagesPath(SpacePagesForwardingFilter.java:69) com.atlassian.confluence.plugins.ia.filter.SpacePagesForwardingFilter.doFilter(SpacePagesForwardingFilter.java:58) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.prettyurls.filter.PrettyUrlsSiteMeshFixupFilter.doFilter(PrettyUrlsSiteMeshFixupFilter.java:32) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.prettyurls.filter.PrettyUrlsDispatcherFilter.doFilter(PrettyUrlsDispatcherFilter.java:55) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.prettyurls.filter.PrettyUrlsSiteMeshFilter.doFilter(PrettyUrlsSiteMeshFilter.java:80) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.prettyurls.filter.PrettyUrlsMatcherFilter.doFilter(PrettyUrlsMatcherFilter.java:48) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:71) com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:59) com.atlassian.confluence.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:34) com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129) com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77) com.atlassian.confluence.util.profiling.ProfilingSiteMeshFilter.doFilter(ProfilingSiteMeshFilter.java:50) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:39) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.prettyurls.filter.PrettyUrlsCombinedMatchDispatcherFilter.doFilter(PrettyUrlsCombinedMatchDispatcherFilter.java:56) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:71) com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:59) com.atlassian.confluence.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:34) com.atlassian.confluence.web.filter.TranslationModeFilter.doFilter(TranslationModeFilter.java:39) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.confluence.util.UserNameHeaderFilter.doFilter(UserNameHeaderFilter.java:32) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:77) com.atlassian.confluence.web.filter.ConfluenceSecurityFilter.doFilterWithExcludedPaths(ConfluenceSecurityFilter.java:40) com.atlassian.confluence.web.filter.ConfluenceSecurityFilter.lambda$doFilter$0(ConfluenceSecurityFilter.java:34) com.atlassian.confluence.impl.servlet.ExcludedPathsHelper.doFilter(ExcludedPathsHelper.java:55) com.atlassian.confluence.web.filter.ConfluenceSecurityFilter.doFilter(ConfluenceSecurityFilter.java:33) com.atlassian.seraph.filter.BaseLoginFilter.doFilter(BaseLoginFilter.java:123) com.atlassian.confluence.web.filter.ConfluenceLoginFilter.lambda$doFilter$0(ConfluenceLoginFilter.java:26) com.atlassian.confluence.impl.servlet.ExcludedPathsHelper.doFilter(ExcludedPathsHelper.java:55) com.atlassian.confluence.web.filter.ConfluenceLoginFilter.doFilter(ConfluenceLoginFilter.java:25) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:39) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.confluence.plugins.rest.asap.servlet.AsapPublicAuthorizationFilter.checkConfluenceAccessAndThenContinueFilterChain(AsapPublicAuthorizationFilter.java:413) com.atlassian.confluence.plugins.rest.asap.servlet.AsapPublicAuthorizationFilter.processRequestWithAuthenticationContext(AsapPublicAuthorizationFilter.java:202) com.atlassian.confluence.plugins.rest.asap.servlet.AsapPublicAuthorizationFilter.doFilter(AsapPublicAuthorizationFilter.java:161) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:86) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.prettyurls.filter.PrettyUrlsCombinedMatchDispatcherFilter.doFilter(PrettyUrlsCombinedMatchDispatcherFilter.java:56) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:71) com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:59) com.atlassian.confluence.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:34) com.atlassian.confluence.web.filter.ConfluenceAuthzFilter.doFilterWithExcludedPaths(ConfluenceAuthzFilter.java:156) com.atlassian.confluence.web.filter.ConfluenceAuthzFilter.lambda$doFilter$0(ConfluenceAuthzFilter.java:103) com.atlassian.confluence.impl.servlet.ExcludedPathsHelper.doFilter(ExcludedPathsHelper.java:55) com.atlassian.confluence.web.filter.ConfluenceAuthzFilter.doFilter(ConfluenceAuthzFilter.java:98) org.springframework.orm.hibernate5.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:156) com.atlassian.confluence.web.filter.ConfluenceOpenSessionInViewFilter.doFilterInternal(ConfluenceOpenSessionInViewFilter.java:44) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) com.atlassian.core.filters.cache.AbstractCachingFilter.doFilter(AbstractCachingFilter.java:32) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:39) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.plugin.connect.plugin.auth.scope.ApiScopingFilter.doFilter(ApiScopingFilter.java:139) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.plugin.connect.plugin.auth.oauth2.OAuth2AccessTokenAuthenticationFilter.doFilter(OAuth2AccessTokenAuthenticationFilter.java:84) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.plugin.connect.plugin.auth.user.ConnectAddonLoginFilter.doFilterImpl(ConnectAddonLoginFilter.java:92) com.atlassian.plugin.connect.plugin.auth.user.AbstractConnectAddonLoginFilter.doFilter(AbstractConnectAddonLoginFilter.java:80) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.jwt.internal.servlet.JwtAuthFilter.doFilter(JwtAuthFilter.java:70) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.plugin.connect.plugin.auth.user.ConnectAuthenticationFilter.doFilterImpl(ConnectAuthenticationFilter.java:68) com.atlassian.plugin.connect.plugin.auth.user.AbstractConnectAddonLoginFilter.doFilter(AbstractConnectAddonLoginFilter.java:80) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.confluence.plugins.rest.asap.servlet.AsapAuthenticationFilter.doFilter(AsapAuthenticationFilter.java:95) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.analytics.client.filter.DefaultAnalyticsFilter.doFilter(DefaultAnalyticsFilter.java:18) com.atlassian.analytics.client.filter.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:45) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:64) com.atlassian.prettyurls.filter.PrettyUrlsCombinedMatchDispatcherFilter.doFilter(PrettyUrlsCombinedMatchDispatcherFilter.java:56) com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:72) com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37) com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:71) com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:59) com.atlassian.confluence.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:34) com.atlassian.confluence.web.filter.validateparam.RequestParamValidationFilter.doFilter(RequestParamValidationFilter.java:39) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.confluence.plugin.servlet.filter.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:75) com.atlassian.confluence.web.filter.LanguageExtractionFilter.doFilter(LanguageExtractionFilter.java:50) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) com.atlassian.confluence.web.filter.ResponseOutputStreamFilter.doFilter(ResponseOutputStreamFilter.java:23) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.confluence.web.filter.HeimdallRateLimitingFilter.doFilter(HeimdallRateLimitingFilter.java:123) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) com.atlassian.confluence.web.filter.ThreadsPerRdsRateLimitingFilter.lambda$doFilter$3(ThreadsPerRdsRateLimitingFilter.java:75) com.atlassian.ratelimit.core.impl.AbstractRateLimiter.runWithRateLimiting(AbstractRateLimiter.java:76) com.atlassian.confluence.web.filter.ThreadsPerRdsRateLimitingFilter.doFilter(ThreadsPerRdsRateLimitingFilter.java:73) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) com.atlassian.confluence.web.filter.ThreadRateLimitingFilter.lambda$doFilter$3(ThreadRateLimitingFilter.java:74) com.atlassian.ratelimit.core.impl.AbstractRateLimiter.runWithRateLimiting(AbstractRateLimiter.java:76) com.atlassian.confluence.web.filter.ThreadRateLimitingFilter.doFilter(ThreadRateLimitingFilter.java:72) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) com.atlassian.confluence.impl.logging.RequestMetricsLoggingFilter.doFilter(RequestMetricsLoggingFilter.java:45) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) com.atlassian.confluence.web.filter.HttpRequestStatsFilter.doFilter(HttpRequestStatsFilter.java:115) com.atlassian.confluence.util.RequestAttributeFilter.doFilter(RequestAttributeFilter.java:64) brave.servlet.TracingFilter.doFilter(TracingFilter.java:86) com.atlassian.confluence.web.filter.ZipkinTracingFilter.doFilter(ZipkinTracingFilter.java:57) com.atlassian.confluence.impl.security.ConfluenceRequestContextFilter.doFilter(ConfluenceRequestContextFilter.java:38) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) com.atlassian.confluence.setup.ConfluenceEncodingFilter.doFilterInternal(ConfluenceEncodingFilter.java:62) com.atlassian.confluence.setup.ConfluenceEncodingFilter.doFilter(ConfluenceEncodingFilter.java:50) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.confluence.impl.vcache.VCacheRequestContextFilter.lambda$doFilter$4(VCacheRequestContextFilter.java:64) com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContext(VCacheRequestContextManager.java:89) com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContext(VCacheRequestContextManager.java:78) com.atlassian.confluence.impl.vcache.VCacheRequestContextFilter.doFilter(VCacheRequestContextFilter.java:59) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.confluence.web.filter.ThreadLocalCacheFilter.doFilter(ThreadLocalCacheFilter.java:32) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.confluence.web.filter.ReadOnlyRequestFilter.doFilter(ReadOnlyRequestFilter.java:70) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) com.atlassian.confluence.util.WorkContextFilter.doFilter(WorkContextFilter.java:142) com.atlassian.confluence.util.LoggingContextFilter.doFilter(LoggingContextFilter.java:25) com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:34) com.atlassian.core.filters.HeaderSanitisingFilter.doFilter(HeaderSanitisingFilter.java:39) com.atlassian.confluence.core.datetime.RequestTimeThreadLocalFilter.doFilter(RequestTimeThreadLocalFilter.java:38) org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
Note The full stack trace of the root cause is available in the server logs.