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class loading of an inbound resource adapter?
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created by <a href="http://community.jboss.org/people/kgrunert">Kai Grunert</a> in <i>IronJacamar</i> - <a href="http://community.jboss.org/message/623879#623879">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hello,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I have just written an inbound resource adapter and everything seems to work fine with it. When I deploy my RA to the JBoss 7.0.1 AS, the container calls the ResourceAdapter.start(BootstrapContext ctx) method and I get a log message that the resource adapter has been started successfully. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>In the next step, I try to activate an endpoint for my MDB using the following annotations:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">...
<font color="navy"><b>import</b></font> de.RATest.UDPMessageListener;
 
@MessageDriven(messageListenerInterface = UDPMessageListener.class,
    activationConfig=<font color="navy">{</font>
        @ActivationConfigProperty(propertyName = <font color="red">"port"</font>, propertyValue=<font color="red">"15660"</font>)
<font color="navy">}</font>)
<font color="navy"><b>public</b></font> <font color="navy"><b>class</b></font> UDPMessageDrivenBean <font color="navy"><b>implements</b></font> UDPMessageListener<font color="navy">{</font>
   
     <font color="navy"><b>public</b></font> <font color="navy"><b>void</b></font> onMessage(String str)<font color="navy">{</font>
        ...
    <font color="navy">}</font>
<font color="navy">}</font>
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Unfortunately when I deploy the MDB, I end up with a NoClassDefFoundError and ClassNotFoundException for the MessageListener Interface:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code">23:56:30,367 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-4) MSC00001: Failed to start service jboss.deployment.subunit."MDB_RA_TEST.ear"."MDBs.war".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.subunit."MDB_RA_TEST.ear"."MDBs.war".INSTALL: Failed to process phase INSTALL of subdeployment "MDBs.war" of deployment "MDB_RA_TEST.ear"
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:121)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1765)
    at org.jboss.msc.service.ServiceControllerImpl$ClearTCCLTask.run(ServiceControllerImpl.java:2291)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_26]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_26]
    at java.lang.Thread.run(Thread.java:662) [:1.6.0_26]
Caused by: java.lang.LinkageError: Failed to link UDPMessageDrivenBean (Module "deployment.MDB_RA_TEST.ear.MDBs.war:main" from Service Module Loader)
    at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:401)
    at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:261)
    at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:76)
    at org.jboss.modules.Module.loadModuleClass(Module.java:588)
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:183)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:358)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:330)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:307)
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:101)
    at java.lang.Class.forName0(Native Method) [:1.6.0_26]
    at java.lang.Class.forName(Class.java:247) [:1.6.0_26]
    at org.jboss.as.ee.component.EEClassConfigurationProcessor$1.compute(EEClassConfigurationProcessor.java:124)
    at org.jboss.as.ee.component.EEClassConfigurationProcessor$1.compute(EEClassConfigurationProcessor.java:114)
    at org.jboss.as.ee.component.LazyValue.get(LazyValue.java:40)
    at org.jboss.as.ee.component.EEApplicationDescription.getClassConfiguration(EEApplicationDescription.java:183)
    at org.jboss.as.ejb3.component.messagedriven.MessageDrivenComponentDescription.createConfiguration(MessageDrivenComponentDescription.java:78)
    at org.jboss.as.ee.component.EEModuleConfigurationProcessor.deploy(EEModuleConfigurationProcessor.java:63)
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:115)
    ... 5 more
Caused by: java.lang.NoClassDefFoundError: de/RATest/UDPMessageListener
    at java.lang.ClassLoader.defineClass1(Native Method) [:1.6.0_26]
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) [:1.6.0_26]
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615) [:1.6.0_26]
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) [:1.6.0_26]
    at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:397)
    ... 22 more
Caused by: java.lang.ClassNotFoundException: de.RATest.UDPMessageListener from [Module "deployment.MDB_RA_TEST.ear.MDBs.war:main" from Service Module Loader]
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:191)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:358)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:330)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:330)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:307)
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:101)
    ... 27 more
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm relatively new in the Java EE world and have not a lot of experiences with resource adapters, but this exceptions seems to me that the classes of the .RAR-file are not loaded correctly. I have read  parts of the specification and also tried a lot with different combinations of archives, for example:  a standalone .rar and a .ejb-jar file, everything inside of an .ear-file and a lot of other combination - but nothing has worked. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am actually not sure anymore, that  the resource adapter is completely correct. I have some questions that maybe could solve my problem:</p><ul><li style="text-align: start;">do I need an JBoss specific deployment descriptor for the resource adapter? </li><li style="text-align: start;">do I have to modify the standalone-preview.xml also for an inbound resource adapter?</li><li style="text-align: start;">do I need something like the @ResourceAdapter annotation in my MDB?</li><li style="text-align: start;">if my  inbound resource adapter is correct, should I see it in the management console under "Connector" -> "Resource Adapters"?</li></ul><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="text-align: start;">Here are some more facts, that could be important:</p><ul><li style="text-align: start;">use of JCA 1.6</li><li style="text-align: start;">only annotations, so I have no ra.xml or ironjacamar.xml</li><li style="text-align: start;">I have started the standalone-preview.xml without any modifications</li><li style="text-align: start;">I have checked the RA with the ironjacamar validator and ended up with a "Validation successful"</li></ul><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="text-align: start;">I have really no clue how to go on and hope that you can help me. To simplify matters I have attached the sources.</p></div>
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<p style="margin: 0;">Start a new discussion in IronJacamar at <a href="http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2098">Community</a></p>
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