Hi Shammi/Hasitha,

There is a version conflict with existing javax.jms bundles when starting
the cache invalidation osgi bundle, which causes the casting problem. Any
thoughts on this matter?

Thank you  & Best regards,

*Amal Gunatilake*
 Software Engineer
WSO2 Inc.; http://wso2.com
lean.enterprise.middleware


On Tue, May 6, 2014 at 1:22 PM, Shazni Nazeer <sha...@wso2.com> wrote:

> Hi Amal,
>
> Yes now the cache.xml entries are correctly read. After replacing
> activemq-core to activemq-all the debugging steps go below the
> IniatlContext line, but as you have mentioned when session object is being
> created the following exception is thrown. Therefore, still jms
> initialization fails.
>
> [2014-05-06 13:13:58,409] ERROR
> {org.wso2.carbon.caching.invalidator.jms.JMSGlobalCacheInvalidationImpl} -
> Global cache invalidation: Error jms broker initialization
> java.lang.ClassCastException:
> org.apache.activemq.ActiveMQConnectionFactory cannot be cast to
> javax.jms.TopicConnectionFactory
>     at
> org.wso2.carbon.caching.invalidator.jms.JMSGlobalCacheInvalidationImpl.initJMSBroker(JMSGlobalCacheInvalidationImpl.java:112)
>     at
> org.wso2.carbon.caching.invalidator.jms.JMSGlobalCacheInvalidationImpl.init(JMSGlobalCacheInvalidationImpl.java:96)
>     at
> org.wso2.carbon.caching.invalidator.jms.JMSGlobalCacheInvalidationImpl.invalidateCache(JMSGlobalCacheInvalidationImpl.java:131)
>     at
> org.wso2.carbon.registry.core.caching.CachingHandler.removeFromCache(CachingHandler.java:255)
>     at
> org.wso2.carbon.registry.core.caching.CachingHandler.clearAncestry(CachingHandler.java:211)
>     at
> org.wso2.carbon.registry.core.caching.CachingHandler.clearAncestry(CachingHandler.java:232)
>     at
> org.wso2.carbon.registry.core.caching.CachingHandler.clearAncestry(CachingHandler.java:232)
>     at
> org.wso2.carbon.registry.core.caching.CachingHandler.clearCache(CachingHandler.java:207)
>     at
> org.wso2.carbon.registry.core.caching.CachingHandler.clearCache(CachingHandler.java:91)
>     at
> org.wso2.carbon.registry.core.caching.CachingHandler.put(CachingHandler.java:280)
>     at
> org.wso2.carbon.registry.core.jdbc.handlers.HandlerManager.put(HandlerManager.java:2503)
>     at
> org.wso2.carbon.registry.core.jdbc.handlers.HandlerLifecycleManager.put(HandlerLifecycleManager.java:993)
>     at
> org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.put(EmbeddedRegistry.java:697)
>     at
> org.wso2.carbon.registry.core.caching.CacheBackedRegistry.put(CacheBackedRegistry.java:508)
>     at
> org.wso2.carbon.registry.core.session.UserRegistry.put(UserRegistry.java:680)
>     at
> org.wso2.carbon.theme.mgt.util.ThemeUtil.transferAllThemesToRegistry(ThemeUtil.java:122)
>     at
> org.wso2.carbon.theme.mgt.util.ThemeUtil.loadResourceThemes(ThemeUtil.java:175)
>     at
> org.wso2.carbon.theme.mgt.internal.TenantThemeMgtServiceComponent.activate(TenantThemeMgtServiceComponent.java:53)
>     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:606)
>     at
> org.eclipse.equinox.internal.ds.model.ServiceComponent.activate(ServiceComponent.java:260)
>     at
> org.eclipse.equinox.internal.ds.model.ServiceComponentProp.activate(ServiceComponentProp.java:146)
>     at
> org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:347)
>     at
> org.eclipse.equinox.internal.ds.InstanceProcess.buildComponent(InstanceProcess.java:620)
>     at
> org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:197)
>     at
> org.eclipse.equinox.internal.ds.Resolver.getEligible(Resolver.java:343)
>     at
> org.eclipse.equinox.internal.ds.SCRManager.serviceChanged(SCRManager.java:222)
>     at
> org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:107)
>     at
> org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861)
>     at
> org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
>     at
> org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
>     at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819)
>     at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:771)
>     at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:130)
>     at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:214)
>     at
> org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:433)
>     at
> org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:451)
>     at
> org.wso2.carbon.core.init.CarbonServerManager.initializeCarbon(CarbonServerManager.java:517)
>     at
> org.wso2.carbon.core.init.CarbonServerManager.start(CarbonServerManager.java:219)
>     at
> org.wso2.carbon.core.internal.CarbonCoreServiceComponent.activate(CarbonCoreServiceComponent.java:77)
>     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:606)
>     at
> org.eclipse.equinox.internal.ds.model.ServiceComponent.activate(ServiceComponent.java:260)
>     at
> org.eclipse.equinox.internal.ds.model.ServiceComponentProp.activate(ServiceComponentProp.java:146)
>     at
> org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:347)
>     at
> org.eclipse.equinox.internal.ds.InstanceProcess.buildComponent(InstanceProcess.java:620)
>     at
> org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:197)
>     at
> org.eclipse.equinox.internal.ds.Resolver.getEligible(Resolver.java:343)
>     at
> org.eclipse.equinox.internal.ds.SCRManager.serviceChanged(SCRManager.java:222)
>     at
> org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:107)
>     at
> org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861)
>     at
> org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
>     at
> org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
>     at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819)
>     at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:771)
>     at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:130)
>     at
> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:214)
>     at
> org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:433)
>     at
> org.eclipse.equinox.http.servlet.internal.Activator.registerHttpService(Activator.java:81)
>     at
> org.eclipse.equinox.http.servlet.internal.Activator.addProxyServlet(Activator.java:60)
>     at
> org.eclipse.equinox.http.servlet.internal.ProxyServlet.init(ProxyServlet.java:40)
>     at
> org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.init(DelegationServlet.java:38)
>     at
> org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1279)
>     at
> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1192)
>     at
> org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
>     at
> org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5210)
>     at
> org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5493)
>     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
>     at
> org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
>     at
> org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
>     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
>     at java.util.concurrent.FutureTask.run(FutureTask.java:166)
>     at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>     at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>     at java.lang.Thread.run(Thread.java:724)
>
>
>
>  Shazni Nazeer
>
> Senior Software Engineer
>
> Mob : +94 715 440 607
> LinkedIn : http://lk.linkedin.com/in/shazninazeer
> Blog : http://shazninazeer.blogspot.com
>
>
> On Tue, May 6, 2014 at 11:17 AM, Amal Gunatilake <am...@wso2.com> wrote:
>
>> Hi Shazni,
>>
>> There was a problem with the cache.xml read and I fixed it. Somehow when
>> starting the osgi bundle it's not picking the child elements and I did an
>> alternative way to read the properties in cache.xml.
>>
>> At the initialization, the isCoordinator check is not necessary since
>> this is already done by cache.xml. If the cache.xml is configured with
>> global cache invalidation parameters, then the jms initialization will
>> happen. The isCoordinator check will happen when publishing a cache
>> invalidation message and when receiving a cache invalidation message.
>>
>> The JMS broker is not being initialized bcuz it is missing the
>> ActiveMQInitialContextFactory class at the run-time; therefore you need to
>> add the AqtiveMQ-All jar to the components/lib. That will solve the
>> InitialContext problem, but then there is another issue which I'm currently
>> looking at.
>>
>> There is a javax.jms class version miss match. At the line that it
>> creates the session, the ActiveMQSession cannot be cast into
>> javax.jms.Session because at the run-time there is a different jms jar is
>> loading into the class-path as I figured. This is actually an exception but
>> it's not captured to the carbon console, and instead result in restarting
>> the osgi bundle. I located this when debugging the code.
>>
>> Even though the ActiveMQ-All jar has all the classes needed, it seems
>> there is problem as "Type mismatch Can't assign
>> org.apache.activemq.ActiveMQSession to javax.jms.Session". But this won't
>> throw as an exception because the classes are already there but with
>> different versions loaded somehow. Therefore this results in restarting the
>> osgi bundle.
>>
>>  I'm looking into this matter and anyone got any thoughts on this would
>> warmly welcome.
>>
>> Thank you  & Best regards,
>>
>> *Amal Gunatilake*
>>  Software Engineer
>> WSO2 Inc.; http://wso2.com
>> lean.enterprise.middleware
>>
>>
>> On Tue, May 6, 2014 at 10:24 AM, Shazni Nazeer <sha...@wso2.com> wrote:
>>
>>> Hi Amal,
>>>
>>> While testing the GREG after doing the change to use the Global cache
>>> invalidation I noticed the following.
>>>
>>> At the time when cache.xml is parsed, it seems the child elements of the
>>> cache.xml is never read. The code at that parsing location seems to be
>>> incorrect.
>>>
>>> Further, at the initializing JMS, the debugging steps never go below the
>>> line where InitalContext is created. Therefore the broker is not getting
>>> initialized. The debugging steps strangely jumps back to init method a many
>>> times.
>>>
>>> Further more, the coordination check at the initialization returns
>>> false, but at the invalidateCache method it becomes true making a
>>> NullPointerException for session object. IMO, the isCordinator check at the
>>> initialization is not needed. WDYT???
>>>
>>> Shazni Nazeer
>>>
>>> Senior Software Engineer
>>>
>>> Mob : +94 715 440 607
>>> LinkedIn : http://lk.linkedin.com/in/shazninazeer
>>> Blog : http://shazninazeer.blogspot.com
>>>
>>>
>>> On Tue, Apr 29, 2014 at 4:55 PM, Amal Gunatilake <am...@wso2.com> wrote:
>>>
>>>> The updates are available @
>>>> https://github.com/amalhub/carbon4-kernel/commit/10734eb2ded9afaee57dd96f8cd5665f0638d8c3
>>>>
>>>>
>>>> Thank you  & Best regards,
>>>>
>>>> *Amal Gunatilake*
>>>>  Software Engineer
>>>> WSO2 Inc.; http://wso2.com
>>>> lean.enterprise.middleware
>>>>
>>>>
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