javax.ws.rs.WebApplicationException: org.fcrepo.server.errors.HttpServiceNotFoundException: [DefaultExternalContentManager] returned an error. The underlying error was a org.fcrepo.server.errors.GeneralException The message was "Error getting http://gams.uni-graz.at/cocoon/toHTML?source=http%3A%2F%2Fgams.uni-graz.at%2Farchive%2Fobjects%2Fcontext%3Avase.875%2Fmethods%2Fsdef%3AObject%2FgetMetadata&style=http%3A%2F%2Fgams.uni-graz.at%2Fvase%2F3vif-context.xsl&model=Context&locale=de&mode=container&context=context%3Avase.870%21context%3Avase.875" . at org.fcrepo.server.rest.BaseRestResource.handleException(BaseRestResource.java:172) at org.fcrepo.server.rest.MethodResource.invokeSDefMethodUsingGET(MethodResource.java:104) at sun.reflect.GeneratedMethodAccessor45.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:175) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:67) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:163) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:71) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:63) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:689) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:647) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:638) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:309) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:425) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:590) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.fcrepo.server.security.servletfilters.FilterRestApiFlash.doFilter(FilterRestApiFlash.java:79) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:368) at org.fcrepo.server.security.servletfilters.FilterSetup.doFilter(FilterSetup.java:250) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) at org.fcrepo.server.security.servletfilters.FilterSetup.doFilter(FilterSetup.java:250) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) at org.fcrepo.server.security.servletfilters.FilterSetup.doFilter(FilterSetup.java:250) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) at org.fcrepo.server.security.servletfilters.FilterSetup.doFilter(FilterSetup.java:250) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) at org.springframework.security.web.access.channel.ChannelProcessingFilter.doFilter(ChannelProcessingFilter.java:109) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:169) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:750) Caused by: org.fcrepo.server.errors.HttpServiceNotFoundException: [DefaultExternalContentManager] returned an error. The underlying error was a org.fcrepo.server.errors.GeneralException The message was "Error getting http://gams.uni-graz.at/cocoon/toHTML?source=http%3A%2F%2Fgams.uni-graz.at%2Farchive%2Fobjects%2Fcontext%3Avase.875%2Fmethods%2Fsdef%3AObject%2FgetMetadata&style=http%3A%2F%2Fgams.uni-graz.at%2Fvase%2F3vif-context.xsl&model=Context&locale=de&mode=container&context=context%3Avase.870%21context%3Avase.875" . at org.fcrepo.server.storage.DefaultExternalContentManager.getExternalContent(DefaultExternalContentManager.java:155) at org.fcrepo.server.access.dissemination.DisseminationService.assembleDissemination(DisseminationService.java:684) at org.fcrepo.server.access.DefaultAccess.getDissemination(DefaultAccess.java:452) at org.fcrepo.server.rest.MethodResource.invokeSDefMethodUsingGET(MethodResource.java:95) ... 48 more Caused by: org.fcrepo.server.errors.GeneralException: Error getting http://gams.uni-graz.at/cocoon/toHTML?source=http%3A%2F%2Fgams.uni-graz.at%2Farchive%2Fobjects%2Fcontext%3Avase.875%2Fmethods%2Fsdef%3AObject%2FgetMetadata&style=http%3A%2F%2Fgams.uni-graz.at%2Fvase%2F3vif-context.xsl&model=Context&locale=de&mode=container&context=context%3Avase.870%21context%3Avase.875 at org.fcrepo.server.storage.DefaultExternalContentManager.get(DefaultExternalContentManager.java:184) at org.fcrepo.server.storage.DefaultExternalContentManager.getFromWeb(DefaultExternalContentManager.java:326) at org.fcrepo.server.storage.DefaultExternalContentManager.getExternalContent(DefaultExternalContentManager.java:149) ... 51 more Caused by: java.io.IOException: Request failed [503 Service Unavailable] at org.fcrepo.common.http.WebClient.get(WebClient.java:211) at org.fcrepo.common.http.WebClient.get(WebClient.java:136) at org.fcrepo.server.storage.DefaultExternalContentManager.get(DefaultExternalContentManager.java:172) ... 53 more