Re: java.lang.ClassCastException: org.mortbay.jetty.nio.SelectChannelConnector$RetryContinuation cannot be cast to org.mortbay.util.ajax.Continuation

Juan Pablo Gardella

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Mar 16, 2011, 9:43:18 AM3/16/11

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What code? Paste here if you want help

Juan

2011/3/16 Ramya <rmjaya...@gmail.com>

Hi,
I am using GWT 2.2 and trying to integrate it with apache-
activemq......When I run the code I get the following error..

java.lang.ClassCastException:
org.mortbay.jetty.nio.SelectChannelConnector$RetryContinuation cannot
be cast to org.mortbay.util.ajax.Continuation
at
org.mortbay.util.ajax.ContinuationSupport.getContinuation(ContinuationSupport.java:
30)

Please help!!!

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Ramya Jayasankar

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Mar 16, 2011, 9:53:56 AM3/16/11

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Hi,

I am actually using google maps in gwt.... I am trying to integrate this with activemq-5.3.2 using these links..

http://code.google.com/p/gwt-activemq/

http://activemq.apache.org/ajax.html

this is my html file

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<title>HelloMaps, built with GWT</title>

<style>

.hm-title {

font-size: 1.5em;

font-family: sans-serif;

display: inline;

}

</style>

amq.uri='amq';

amq.sendMessage(queue://Madyakailash,"hello");

</script>

</head>

<body>

<div>

<span class="hm-title">Google Maps API Library for GWT Demo</span>

</div>

Hello

</body>

</html>

But when I run this code it shows this error:

java.lang.ClassCastException:
org.mortbay.jetty.nio.SelectChannelConnector$RetryContinuation cannot
be cast to org.mortbay.util.ajax.Continuation
at
org.mortbay.util.ajax.ContinuationSupport.getContinuation(ContinuationSupport.java:
30)

Please help!!!

Juan Pablo Gardella

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Mar 16, 2011, 9:58:21 AM3/16/11

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http://code.google.com/p/gwt-activemq/ is compatible with GWT 2.2? See http://groups.google.com/group/google-web-toolkit/msg/19f967feee551248.

Can you paste the complete stacktrace?

Juan

2011/3/16 Ramya Jayasankar <rmjaya...@gmail.com>

Ramya Jayasankar

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Mar 16, 2011, 10:27:50 AM3/16/11

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Hi,

I also tried with GWT 1.7.1 .... But there I get other errors:

[ERROR] Could not load MBeanServer

java.lang.NoClassDefFoundError: javax.management.MBeanServerFactory is a restricted class. Please see the Google App Engine developer's guide for more details.

at com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:51)

at org.apache.activemq.broker.jmx.ManagementContext.findMBeanServer(ManagementContext.java:337)

at org.apache.activemq.broker.jmx.ManagementContext.getMBeanServer(ManagementContext.java:178)

at org.apache.activemq.broker.jmx.ManagementContext.start(ManagementContext.java:88)

at org.apache.activemq.broker.BrokerService.startManagementContext(BrokerService.java:1941)

at org.apache.activemq.broker.BrokerService.start(BrokerService.java:458)

at org.apache.activemq.transport.vm.VMTransportFactory.doCompositeConnect(VMTransportFactory.java:123)

at org.apache.activemq.transport.vm.VMTransportFactory.doConnect(VMTransportFactory.java:53)

at org.apache.activemq.transport.TransportFactory.doConnect(TransportFactory.java:51)

at org.apache.activemq.transport.TransportFactory.connect(TransportFactory.java:80)

at org.apache.activemq.ActiveMQConnectionFactory.createTransport(ActiveMQConnectionFactory.java:243)

at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:258)

at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:230)

at org.apache.activemq.ActiveMQConnectionFactory.createConnection(ActiveMQConnectionFactory.java:178)

at org.apache.activemq.web.WebClient.getConnection(WebClient.java:235)

at org.apache.activemq.web.WebClient.createSession(WebClient.java:337)

at org.apache.activemq.web.WebClient.getSession(WebClient.java:228)

at org.apache.activemq.web.MessageServletSupport.getDestination(MessageServletSupport.java:318)

at org.apache.activemq.web.MessageListenerServlet.doPost(MessageListenerServlet.java:144)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)

at org.apache.activemq.web.SessionFilter.doFilter(SessionFilter.java:45)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)

at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:58)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)

at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)

at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)

at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)

at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)

at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)

at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)

at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)

at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70)

at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)

at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:351)

at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)

at org.mortbay.jetty.Server.handle(Server.java:326)

at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)

at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)

at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)

at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)

at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)

at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)

at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

[ERROR] Failed to start ActiveMQ JMS Message Broker. Reason: java.io.IOException: Invalid JMX broker name: broker1

java.io.IOException: Invalid JMX broker name: broker1

at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:27)

at org.apache.activemq.broker.BrokerService.createBrokerObjectName(BrokerService.java:1816)

at org.apache.activemq.broker.BrokerService.getBrokerObjectName(BrokerService.java:994)

at org.apache.activemq.broker.BrokerService.startManagementContext(BrokerService.java:1943)