As subject suggests, http://localhost:8161/api/jolokia/  and
http://localhost:8161/api/jolokia/read/org.apache.activemq:type=Broker,brokerName=localhost
return a 500 page.
I’ve tried several POST requests found in
http://www.jakubkorab.net/2013/11/monitoring-activemq-via-http.html, also
got this 500 page.

I’m using ActiveMQ 5.14.5.
JMS and JMX work well.

Can I find any working example under domain name activemq.apache.org?
http://localhost:8161/api/jolokia/read/org.apache.activemq:type=Broker,brokerName=localhost
is found here: http://activemq.apache.org/rest.html


HTTP ERROR 500
Problem accessing /api/jolokia. Reason:
    Server Error

Caused by:
java.lang.IllegalAccessError: tried to access method
org.json.simple.JSONValue.escape(Ljava/lang/String;Ljava/lang/StringBuffer;)V
from class org.json.simple.JSONObject
        at org.json.simple.JSONObject.toJSONString(JSONObject.java:116)
        at org.json.simple.JSONObject.toJSONString(JSONObject.java:101)
        at org.json.simple.JSONObject.toJSONString(JSONObject.java:108)
        at org.jolokia.http.AgentServlet.handle(AgentServlet.java:269)
        at org.jolokia.http.AgentServlet.doGet(AgentServlet.java:221)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
        at 
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808)
        at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:553)
        at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
        at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
        at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
        at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
        at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
        at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
        at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:553)
        at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
        at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
        at org.eclipse.jetty.server.Server.handle(Server.java:499)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
        at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
        at
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
        at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
        at java.lang.Thread.run(Thread.java:748)

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