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From "james strachan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-4177) browseMessages() fails when using Jolokia to browse JMX
Date Wed, 14 Nov 2012 17:12:13 GMT
james strachan created AMQ-4177:
-----------------------------------

             Summary: browseMessages() fails when using Jolokia to browse JMX
                 Key: AMQ-4177
                 URL: https://issues.apache.org/jira/browse/AMQ-4177
             Project: ActiveMQ
          Issue Type: Improvement
         Environment: 5.7.0
            Reporter: james strachan
            Priority: Minor


I tried using Jolokia to browse the JSON view of JMX for ActiveMQ. Things generally worked
great, however the browseMessages() function causes issues with the Jolokia JSON marshaller
- it seems we return beans which are not really usable as is. Not sure how easy this is to
fix...

Here's the stack trace when browsing a queue called 'cheese' on a JVM running ActiveMQ and
jolokia servlet such as with a URL like: 
http://localhost:8080/jolokia/exec/org.apache.activemq:BrokerName=localhost,Destination=cheese,Type=Queue/browseMessages()
{code}
{
error_type: "java.lang.IllegalStateException",
error: "java.lang.IllegalStateException : Error while extracting metaData from ActiveMQConnection
{id=ID:stracmac.home-58797-1352910163300-7:1,clientId=ID:stracmac.home-58797-1352910163300-6:1,started=false}",
status: 500,
stacktrace: "java.lang.IllegalStateException: Error while extracting metaData from ActiveMQConnection
{id=ID:stracmac.home-58797-1352910163300-7:1,clientId=ID:stracmac.home-58797-1352910163300-6:1,started=false}
at org.jolokia.converter.json.BeanExtractor.extractBeanPropertyValue(BeanExtractor.java:242)
at org.jolokia.converter.json.BeanExtractor.extractJsonifiedPropertyValue(BeanExtractor.java:161)
at org.jolokia.converter.json.BeanExtractor.exctractJsonifiedValue(BeanExtractor.java:147)
at org.jolokia.converter.json.BeanExtractor.extractObject(BeanExtractor.java:78) at org.jolokia.converter.json.ObjectToJsonConverter.callHandler(ObjectToJsonConverter.java:351)
at org.jolokia.converter.json.ObjectToJsonConverter.extractObject(ObjectToJsonConverter.java:181)
at org.jolokia.converter.json.BeanExtractor.extractJsonifiedPropertyValue(BeanExtractor.java:169)
at org.jolokia.converter.json.BeanExtractor.exctractJsonifiedValue(BeanExtractor.java:147)
at org.jolokia.converter.json.BeanExtractor.extractObject(BeanExtractor.java:78) at org.jolokia.converter.json.ObjectToJsonConverter.callHandler(ObjectToJsonConverter.java:351)
at org.jolokia.converter.json.ObjectToJsonConverter.extractObject(ObjectToJsonConverter.java:181)
at org.jolokia.converter.json.ListExtractor.extractObject(ListExtractor.java:71) at org.jolokia.converter.json.ObjectToJsonConverter.callHandler(ObjectToJsonConverter.java:351)
at org.jolokia.converter.json.ObjectToJsonConverter.extractObject(ObjectToJsonConverter.java:181)
at org.jolokia.converter.json.ObjectToJsonConverter.extractObjectWithContext(ObjectToJsonConverter.java:144)
at org.jolokia.converter.json.ObjectToJsonConverter.convertToJson(ObjectToJsonConverter.java:116)
at org.jolokia.backend.BackendManager.callRequestDispatcher(BackendManager.java:340) at org.jolokia.backend.BackendManager.handleRequest(BackendManager.java:140)
at org.jolokia.http.HttpRequestHandler.executeRequest(HttpRequestHandler.java:175) at org.jolokia.http.HttpRequestHandler.handleGetRequest(HttpRequestHandler.java:79)
at org.jolokia.http.AgentServlet$3.handleRequest(AgentServlet.java:296) at org.jolokia.http.AgentServlet.handle(AgentServlet.java:228)
at org.jolokia.http.AgentServlet.doGet(AgentServlet.java:193) at javax.servlet.http.HttpServlet.service(HttpServlet.java:735)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:598)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:486) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1065) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:413)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:999)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
at org.eclipse.jetty.server.Server.handle(Server.java:350) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:454)
at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:890)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:944)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:630) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:77) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:606)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:46) at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:603) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:538)
at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at
java.lang.reflect.Method.invoke(Method.java:601) at org.jolokia.converter.json.BeanExtractor.extractBeanPropertyValue(BeanExtractor.java:237)
... 47 more Caused by: org.apache.activemq.ConnectionClosedException: The connection is already
closed at org.apache.activemq.ActiveMQConnection.checkClosed(ActiveMQConnection.java:1462)
at org.apache.activemq.ActiveMQConnection.checkClosedOrFailed(ActiveMQConnection.java:1449)
at org.apache.activemq.ActiveMQConnection.getMetaData(ActiveMQConnection.java:432) ... 52
more "
}{code}


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