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https://issues.apache.org/jira/browse/GERONIMO-6658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16703135#comment-16703135
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ASF GitHub Bot commented on GERONIMO-6658:
------------------------------------------

rmannibucau commented on issue #2: GERONIMO-6658 - WIP Fix bug with gauge json
URL: https://github.com/apache/geronimo-metrics/pull/2#issuecomment-442826327
 
 
   > It will change the return type from Metric to Object and won't work for 
other methods that are using it.
   
   I'm pretty confident we can make it work, worse case we add a toggle in map 
method but all endpoints should return the same representation
   
   > When you say a server or an endpoint are not necessary, how would you do 
it?
   
   a plain new of the endpoint then you have setters and can call endpoint to 
check the returned model, no need to go through serialization here

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> Issue @Gauge Accept: application/json
> -------------------------------------
>
>                 Key: GERONIMO-6658
>                 URL: https://issues.apache.org/jira/browse/GERONIMO-6658
>             Project: Geronimo
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>            Reporter: Ivan Junckes Filho
>            Priority: Major
>
> Trying access a gauge /metrics/application/<metric-name> with "Accept: 
> application/json" I get the error below:
>  
> 21-Nov-2018 17:24:08.811 WARNING [http-nio-8080-exec-4] 
> org.apache.cxf.jaxrs.model.OperationResourceInfoComparator.compare Both 
> org.apache.geronimo.microprofile.metrics.common.jaxrs.MetricsEndpoints#getJson
>  and 
> org.apache.geronimo.microprofile.metrics.jaxrs.CdiMetricsEndpoints#getJson 
> are equal candidates for handling the current request which can lead to 
> unpredictable results
> 21-Nov-2018 17:26:52.183 SEVERE [http-nio-8080-exec-4] 
> org.apache.cxf.jaxrs.utils.JAXRSUtils.logMessageHandlerProblem Problem with 
> writing the data, class java.util.Collections$SingletonMap, ContentType: 
> application/json
> 21-Nov-2018 17:26:52.184 WARNING [http-nio-8080-exec-4] 
> org.apache.cxf.phase.PhaseInterceptorChain.doDefaultLogging Interceptor for 
> {[http://jaxrs.common.metrics.microprofile.geronimo.apache.org/}MetricsEndpoints|http://jaxrs.common.metrics.microprofile.geronimo.apache.org/%7DMetricsEndpoints]
>  has thrown exception, unwinding now
>  org.apache.cxf.interceptor.Fault
> at 
> org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.handleWriteException(JAXRSOutInterceptor.java:396)
> at 
> org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.serializeMessage(JAXRSOutInterceptor.java:272)
> at 
> org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.processResponse(JAXRSOutInterceptor.java:122)
> at 
> org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.handleMessage(JAXRSOutInterceptor.java:84)
> at 
> org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
> at 
> org.apache.cxf.interceptor.OutgoingChainInterceptor.handleMessage(OutgoingChainInterceptor.java:90)
> at 
> org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
> at 
> org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
> at 
> org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:267)
> at 
> org.apache.openejb.server.cxf.rs.CxfRsHttpListener.doInvoke(CxfRsHttpListener.java:253)
> at 
> org.apache.tomee.webservices.CXFJAXRSFilter.doFilter(CXFJAXRSFilter.java:94)
> at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
> at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
> at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
> at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
> at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
> at org.apache.openejb.server.httpd.EEFilter.doFilter(EEFilter.java:65)
> at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
> at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
> at org.apache.tomee.microprofile.jwt.MPJWTFilter.doFilter(MPJWTFilter.java:64)
> at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
> at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
> at 
> org.apache.geronimo.microprofile.opentracing.microprofile.server.OpenTracingFilter.doFilter(OpenTracingFilter.java:126)
> 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.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44)
> at 
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
> at 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
> at 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
> at 
> org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
> at 
> org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
> at 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
> at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
> at 
> org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
> at 
> org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:770)
> at 
> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415)
> 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.StackOverflowError



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