You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@activemq.apache.org by "Roberto Cisternino (Jira)" <ji...@apache.org> on 2020/08/20 18:13:00 UTC
[jira] [Commented] (AMQ-8022) ActiveMQ-RAR cannot connect to
external broker (Transport scheme NOT recognized: [tcp])
[ https://issues.apache.org/jira/browse/AMQ-8022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17181365#comment-17181365 ]
Roberto Cisternino commented on AMQ-8022:
-----------------------------------------
It looks this deployment case (JCA connector) has similarities with OSGI. The way the FactoryFinder works by default is not sufficient because there is always a possible cast between classes coming from different classloaders.
A workaround can be to pre-register the desired transport factory in the expected classloader (web root classloader).
E.g.
private static final TransportFactory TCP_TRANSPORT_FACTORY = new TcpTransportFactory();
// Pre-register the tcp
static {
TransportFactory.registerTransportFactory("tcp", TCP_TRANSPORT_FACTORY);
}
> ActiveMQ-RAR cannot connect to external broker (Transport scheme NOT recognized: [tcp])
> ---------------------------------------------------------------------------------------
>
> Key: AMQ-8022
> URL: https://issues.apache.org/jira/browse/AMQ-8022
> Project: ActiveMQ
> Issue Type: Bug
> Components: Connector
> Affects Versions: 5.16.0
> Environment: openjdk-1.8.0.252-2.b09
> Payara 5
> ActiveMQ 5.16.0
> ActiveMQ 5.16.0 RAR installed as a connector on Payara
> Classloader delegation disabled on glassfish-config.xml: <class-loader delegate="false"/>
> Reporter: Roberto Cisternino
> Priority: Major
>
> Even if the ActiveMQ libraries are aligned with the 5.16.0 version, the TransportFactory raises a cast exception:
> *java.lang.ClassCastException: org.apache.activemq.transport.tcp.TcpTransportFactory cannot be cast to org.apache.activemq.transport.TransportFactory at org.apache.activemq.transport.TransportFactory.findTransportFactory*
> The class loader has the delegation disabled, but the connector has probably a separated classloader, so there could be some collision here.
> I tried a workaround by providing activemq libraries as payara modules and using whitelist-package instructions on the glassfish-web.xml, like this...
> <whitelist-package>org.apache.activemq</whitelist-package>
> <whitelist-package>com.mysql</whitelist-package>
> This solved this issue and the connector was pinging correctly, but everything else was broken in my project... as the whitelist-package has probably some other negative sides...
> Same issue was available using the earlier activemq 5.15.9
> Full stack of the exception is below:
> [2020-08-20T15:01:27.300+0200] [Payara 5.2020] [BUONO] [] [javax.enterprise.resource.resourceadapter.com.sun.enterprise.resource.allocator] [tid: _ThreadID=218 _ThreadName=controllerListener-1] [timeMillis: 1597928487300] [levelValue: 500] [CLASSNAME: com.sun.enterprise.resource.allocator.ConnectorAllocator] [METHODNAME: createResource] [[[2020-08-20T15:01:27.300+0200] [Payara 5.2020] [BUONO] [] [javax.enterprise.resource.resourceadapter.com.sun.enterprise.resource.allocator] [tid: _ThreadID=218 _ThreadName=controllerListener-1] [timeMillis: 1597928487300] [levelValue: 500] [CLASSNAME: com.sun.enterprise.resource.allocator.ConnectorAllocator] [METHODNAME: createResource] [[ Resource Exception while creating resourcejavax.resource.ResourceException: Could not create connection. at org.apache.activemq.ra.ActiveMQManagedConnectionFactory.createManagedConnection(ActiveMQManagedConnectionFactory.java:210) at com.sun.enterprise.resource.allocator.ConnectorAllocator.createResource(ConnectorAllocator.java:161) at com.sun.enterprise.resource.pool.ConnectionPool.createSingleResource(ConnectionPool.java:920) at com.sun.enterprise.resource.pool.ConnectionPool.createResource(ConnectionPool.java:1209) at com.sun.enterprise.resource.pool.datastructure.RWLockDataStructure.addResource(RWLockDataStructure.java:98) at com.sun.enterprise.resource.pool.ConnectionPool.addResource(ConnectionPool.java:287) at com.sun.enterprise.resource.pool.ConnectionPool.createResourceAndAddToPool(ConnectionPool.java:1532) at com.sun.enterprise.resource.pool.ConnectionPool.createResources(ConnectionPool.java:957) at com.sun.enterprise.resource.pool.ConnectionPool.initPool(ConnectionPool.java:235) at com.sun.enterprise.resource.pool.ConnectionPool.internalGetResource(ConnectionPool.java:528) at com.sun.enterprise.resource.pool.ConnectionPool.getResource(ConnectionPool.java:386) at com.sun.enterprise.resource.pool.PoolManagerImpl.getResourceFromPool(PoolManagerImpl.java:244) at com.sun.enterprise.resource.pool.PoolManagerImpl.getResource(PoolManagerImpl.java:171) at com.sun.enterprise.connectors.ConnectionManagerImpl.getResource(ConnectionManagerImpl.java:354) at com.sun.enterprise.connectors.ConnectionManagerImpl.internalGetConnection(ConnectionManagerImpl.java:307) at com.sun.enterprise.connectors.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:242) at com.sun.enterprise.connectors.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:171) at com.sun.enterprise.connectors.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:166) at org.apache.activemq.ra.ActiveMQConnectionFactory.createConnection(ActiveMQConnectionFactory.java:95) at org.apache.activemq.ra.ActiveMQConnectionFactory.createConnection(ActiveMQConnectionFactory.java:67) at org.springframework.jms.support.JmsAccessor.createConnection(JmsAccessor.java:180) at org.springframework.jms.listener.DefaultMessageListenerContainer.refreshConnectionUntilSuccessful(DefaultMessageListenerContainer.java:930) at org.springframework.jms.listener.DefaultMessageListenerContainer.recoverAfterListenerSetupFailure(DefaultMessageListenerContainer.java:901) at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:1079) at java.lang.Thread.run(Thread.java:748)Caused by: javax.jms.JMSException: Could not create Transport. Reason: javax.jms.JMSException: Could not create Transport. Reason: java.io.IOException: Transport scheme NOT recognized: [tcp] at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:36) at org.apache.activemq.ActiveMQSslConnectionFactory.createTransport(ActiveMQSslConnectionFactory.java:122) at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:346) at org.apache.activemq.ActiveMQConnectionFactory.createConnection(ActiveMQConnectionFactory.java:252) at org.apache.activemq.ra.ActiveMQConnectionSupport.makeConnection(ActiveMQConnectionSupport.java:89) at org.apache.activemq.ra.ActiveMQConnectionSupport.makeConnection(ActiveMQConnectionSupport.java:70) at org.apache.activemq.ra.ActiveMQManagedConnectionFactory.createManagedConnection(ActiveMQManagedConnectionFactory.java:208) ... 24 moreCaused by: javax.jms.JMSException: Could not create Transport. Reason: java.io.IOException: Transport scheme NOT recognized: [tcp] at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:36) at org.apache.activemq.ActiveMQConnectionFactory.createTransport(ActiveMQConnectionFactory.java:333) at org.apache.activemq.ActiveMQSslConnectionFactory.createTransport(ActiveMQSslConnectionFactory.java:120) ... 29 moreCaused by: java.io.IOException: Transport scheme NOT recognized: [tcp] at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:28) at org.apache.activemq.transport.TransportFactory.findTransportFactory(TransportFactory.java:185) at org.apache.activemq.transport.TransportFactory.connect(TransportFactory.java:64) at org.apache.activemq.ActiveMQConnectionFactory.createTransport(ActiveMQConnectionFactory.java:331) ... 30 moreCaused by: {color:#FF0000}*java.lang.ClassCastException: org.apache.activemq.transport.tcp.TcpTransportFactory cannot be cast to org.apache.activemq.transport.TransportFactory at org.apache.activemq.transport.TransportFactory.findTransportFactory*{color}(TransportFactory.java:182) ... 32 more
--
This message was sent by Atlassian Jira
(v8.3.4#803005)