Metricbeat Jolokia GC Young space

[rubbercable]

Metric beat doesn't handle spaces in mbeans well.
curl localhost:8778/jolokia/read/java.lang:name=G1%20Young%20Generation,type=GarbageCollector

I can curl this to get statistics, but Metricbeat reports:

{
"error": "javax.management.InstanceNotFoundException : java.lang:name=G1%20Young%20Generation,type=GarbageCollector",
"error_type": "javax.management.InstanceNotFoundException",
"request": {
"attribute": [
"CollectionTime",
"CollectionCount"
],
"mbean": "java.lang:name=G1%20Young%20Generation,type=GarbageCollector",
"type": "read"
},
"stacktrace": "javax.management.InstanceNotFoundException: java.lang:name=G1%20Young%20Generation,type=GarbageCollectorntat com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1095)ntat com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:643)ntat com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)ntat org.jolokia.handler.ReadHandler$2.execute(ReadHandler.java:60)ntat org.jolokia.backend.executor.AbstractMBeanServerExecutor.call(AbstractMBeanServerExecutor.java:90)ntat org.jolokia.handler.ReadHandler.getAttribute(ReadHandler.java:235)ntat org.jolokia.handler.ReadHandler.fetchAttributes(ReadHandler.java:189)ntat org.jolokia.handler.ReadHandler.doHandleRequest(ReadHandler.java:118)ntat org.jolokia.handler.ReadHandler.doHandleRequest(ReadHandler.java:37)ntat org.jolokia.handler.JsonRequestHandler.handleRequest(JsonRequestHandler.java:161)ntat org.jolokia.backend.MBeanServerHandler.dispatchRequest(MBeanServerHandler.java:156)ntat org.jolokia.backend.LocalRequestDispatcher.dispatchRequest(LocalRequestDispatcher.java:99)ntat org.jolokia.backend.BackendManager.callRequestDispatcher(BackendManager.java:428)ntat org.jolokia.backend.BackendManager.handleRequest(BackendManager.java:158)ntat org.jolokia.http.HttpRequestHandler.executeRequest(HttpRequestHandler.java:197)ntat org.jolokia.http.HttpRequestHandler.handlePostRequest(HttpRequestHandler.java:131)ntat org.jolokia.jvmagent.handler.JolokiaHttpHandler.executePostRequest(JolokiaHttpHandler.java:290)ntat org.jolokia.jvmagent.handler.JolokiaHttpHandler.doHandle(JolokiaHttpHandler.java:236)ntat org.jolokia.jvmagent.handler.JolokiaHttpHandler.handle(JolokiaHttpHandler.java:178)ntat com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79)ntat sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:83)ntat com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:82)ntat sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:675)ntat com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79)ntat sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:647)ntat java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)ntat java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)ntat java.lang.Thread.run(Thread.java:748)n",
"status": 404
},

[Kaiyan_Sheng]

@rubbercable Thanks for reporting this. Seems like when specifying jmx.mappings in jolokia metricbeat config with java.lang:type=GarbageCollector,name=collector's name, jolokia module can not handle collector's name with space. What does your config looks like?