[jboss-jira] [JBoss JIRA] (WFLY-12413) IllegalStateException when bad metrics scope requested

IllegalStateException when bad metrics scope requested ------------------------------------------------------ Key: WFLY-12413 URL: https://issues.jboss.org/browse/WFLY-12413 Project: WildFly Issue Type: Bug Components: MP Metrics Reporter: Jan Stourac Assignee: Jeff Mesnil Priority: Major With WildFly build from master branch (commit {{0e13252d9e7a6c82e6e170bac1a2faf727287c1d}}), I can see following exception in log: {code} 16:38:57,964 ERROR [io.undertow.request] (management I/O-1) UT005071: Undertow request failed HttpServerExchange{ GET /metrics/test}: java.lang.IllegalStateException: UT000002: The response has already been started at io.undertow.server.HttpServerExchange.setStatusCode(HttpServerExchange.java:1406) at org.wildfly.extension.microprofile.metrics.MetricsContextService$1.lambda$handleRequest$0(MetricsContextService.java:85) at io.smallrye.metrics.MetricsRequestHandler.handleRequest(MetricsRequestHandler.java:142) at io.smallrye.metrics.MetricsRequestHandler.handleRequest(MetricsRequestHandler.java:73) at org.wildfly.extension.microprofile.metrics.MetricsContextService$1.handleRequest(MetricsContextService.java:84) at org.jboss.as.domain.http.server.security.RealmReadinessHandler.handleRequest(RealmReadinessHandler.java:51) at org.jboss.as.domain.http.server.security.ServerErrorReadinessHandler.handleRequest(ServerErrorReadinessHandler.java:35) at io.undertow.server.handlers.PathHandler.handleRequest(PathHandler.java:91) at io.undertow.server.handlers.ChannelUpgradeHandler.handleRequest(ChannelUpgradeHandler.java:211) at io.undertow.server.handlers.cache.CacheHandler.handleRequest(CacheHandler.java:92) at io.undertow.server.handlers.error.SimpleErrorPageHandler.handleRequest(SimpleErrorPageHandler.java:78) at io.undertow.server.handlers.CanonicalPathHandler.handleRequest(CanonicalPathHandler.java:49) at org.jboss.as.domain.http.server.ManagementHttpRequestHandler.handleRequest(ManagementHttpRequestHandler.java:57) at org.jboss.as.domain.http.server.cors.CorsHttpHandler.handleRequest(CorsHttpHandler.java:75) at org.jboss.as.domain.http.server.ManagementHttpServer$UpgradeFixHandler.handleRequest(ManagementHttpServer.java:664) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:376) at io.undertow.server.protocol.http.HttpReadListener.handleEventWithNoRunningRequest(HttpReadListener.java:255) at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:136) at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:162) at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:100) at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:57) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:291) at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:286) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) at org.xnio.nio.QueuedNioTcpServer$1.run(QueuedNioTcpServer.java:132) at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:612) at org.xnio.nio.WorkerThread.run(WorkerThread.java:479) {code} This exception is caused by following request: {code} $ curl -v http://localhost:9990/metrics/test * Trying ::1:9990... * TCP_NODELAY set * connect to ::1 port 9990 failed: Connection refused * Trying 127.0.0.1:9990... * TCP_NODELAY set * Connected to localhost (127.0.0.1) port 9990 (#0) > GET /metrics/test HTTP/1.1 > Host: localhost:9990 > User-Agent: curl/7.65.3 > Accept: */* > * Mark bundle as not supporting multiuse < HTTP/1.1 404 Not Found < Connection: keep-alive < Content-Length: 25 < Date: Thu, 22 Aug 2019 14:57:20 GMT < * Connection #0 to host localhost left intact Bad scope requested: test The 404 Not Found HTTP response code is expected and also 'Bad scope request: test' in this case. Although, I think that mentioned IllegalStateException should be avoided. Also, this exception is not thrown in WildFly 17.0.1. {code}