[
https://issues.apache.org/jira/browse/ARTEMIS-2350?focusedWorklogId=248830&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-248830
]
ASF GitHub Bot logged work on ARTEMIS-2350:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 27/May/19 13:12
Start Date: 27/May/19 13:12
Worklog Time Spent: 10m
Work Description: wy96f commented on pull request #2677: ARTEMIS-2350 Fix
ClassNotFoundException while invoking listConsumers
URL: https://github.com/apache/activemq-artemis/pull/2677#discussion_r287785732
##########
File path:
artemis-core-client/src/main/java/org/apache/activemq/artemis/api/core/JsonUtil.java
##########
@@ -275,11 +274,11 @@ public static JsonArrayBuilder toJsonArrayBuilder(byte[]
byteArray) {
}
public static JsonArray readJsonArray(String jsonString) {
- return Json.createReader(new StringReader(jsonString)).readArray();
Review comment:
Hi, clebertsuconic, we dived into code today and checked our deployed
production configuration. Found that we didn't use the etc/management.xml and
instead added jmx configuration in artemis.profile like
"-Dcom.sun.management.jmxremote=true -Dcom.sun.management.jmxremote.port=1099".
In such a way, the rmi thread pool exeuctor is using system classloader. When
requests from jconsole come in, the exception occcurs.
The reason ActiveMQServerControlTest can't reproduce the problem is the test
uses junit class loader which contains all the necessary url paths.
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Issue Time Tracking
-------------------
Worklog Id: (was: 248830)
Time Spent: 0.5h (was: 20m)
> ClassNotFoundException while invoking ActiveMQServerControlImpl::listConsumers
> ------------------------------------------------------------------------------
>
> Key: ARTEMIS-2350
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2350
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 2.8.1
> Reporter: yangwei
> Priority: Major
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> The exception is as follows:
> 2019-05-22 20:27:25,842 FINE [sun.rmi.server.call] RMI TCP
> Connection(3)-10.49.7.20: [10.49.7.20] exception: :
> javax.management.RuntimeMBeanException: javax.json.JsonException:
> org.apache.johnzon.core.JsonProviderImpl not found
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:839)
> [rt.jar:1.8.0_121]
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:852)
> [rt.jar:1.8.0_121]
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:821)
> [rt.jar:1.8.0_121]
> at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
> [rt.jar:1.8.0_121]
> at
> javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
> [rt.jar:1.8.0_121]
> at
> javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
> [rt.jar:1.8.0_121]
> at
> javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
> [rt.jar:1.8.0_121]
> at
> javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
> [rt.jar:1.8.0_121]
> at
> javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
> [rt.jar:1.8.0_121]
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [rt.jar:1.8.0_121]
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> [rt.jar:1.8.0_121]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> [rt.jar:1.8.0_121]
> at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_121]
> at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:346)
> [rt.jar:1.8.0_121]
> at sun.rmi.transport.Transport$1.run(Transport.java:200) [rt.jar:1.8.0_121]
> at sun.rmi.transport.Transport$1.run(Transport.java:197) [rt.jar:1.8.0_121]
> at java.security.AccessController.doPrivileged(Native Method)
> [rt.jar:1.8.0_121]
> at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
> [rt.jar:1.8.0_121]
> at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
> [rt.jar:1.8.0_121]
> at
> sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
> [rt.jar:1.8.0_121]
> at
> sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
> [rt.jar:1.8.0_121]
> at java.security.AccessController.doPrivileged(Native Method)
> [rt.jar:1.8.0_121]
> at
> sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
> [rt.jar:1.8.0_121]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [rt.jar:1.8.0_121]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [rt.jar:1.8.0_121]
> at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_121]
> Caused by: javax.json.JsonException: org.apache.johnzon.core.JsonProviderImpl
> not found
> at javax.json.spi.JsonProvider.doLoadProvider(JsonProvider.java:132)
> at javax.json.spi.JsonProvider.provider(JsonProvider.java:64)
> at javax.json.Json.createReader(Json.java:68)
> at
> org.apache.activemq.artemis.api.core.JsonUtil.readJsonObject(JsonUtil.java:282)
> at
> org.apache.activemq.artemis.core.management.impl.view.ActiveMQAbstractView.setOptions(ActiveMQAbstractView.java:122)
> at
> org.apache.activemq.artemis.core.management.impl.ActiveMQServerControlImpl.listConsumers(ActiveMQServerControlImpl.java:2222)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [rt.jar:1.8.0_121]
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> [rt.jar:1.8.0_121]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> [rt.jar:1.8.0_121]
> at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_121]
> at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71) [rt.jar:1.8.0_121]
> at sun.reflect.GeneratedMethodAccessor12.invoke(Unknown Source) [:1.8.0_121]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> [rt.jar:1.8.0_121]
> at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_121]
> at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275) [rt.jar:1.8.0_121]
> at
> com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:112)
> [rt.jar:1.8.0_121]
> at
> com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:46)
> [rt.jar:1.8.0_121]
> at
> com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
> [rt.jar:1.8.0_121]
> at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:138)
> [rt.jar:1.8.0_121]
> at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:252)
> [rt.jar:1.8.0_121]
> at javax.management.StandardMBean.invoke(StandardMBean.java:405)
> [rt.jar:1.8.0_121]
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
> [rt.jar:1.8.0_121]
> ... 23 more
> Caused by: java.lang.ClassNotFoundException:
> org.apache.johnzon.core.JsonProviderImpl
> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> [rt.jar:1.8.0_121]
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424) [rt.jar:1.8.0_121]
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
> [rt.jar:1.8.0_121]
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357) [rt.jar:1.8.0_121]
> at javax.json.spi.JsonProvider.doLoadProvider(JsonProvider.java:129)
> ... 44 more
>
> JsonUtil::readJsonObject uses Json::createReader which load JsonProvider in
> the SystemClassLoader. Use JsonLoader::createReader instead where
> JsonProvider is loaded in the UrlClassLoader.
>
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