[jboss-dev-forums] [JBoss AS 7 Development] - Class Loading and Modules

[Bill Rosenberg]

Bill Rosenberg [https://community.jboss.org/people/bill.rosenberg] created the discussion

"Class Loading and Modules"

To view the discussion, visit: https://community.jboss.org/message/763029#763029

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here is my deployment outline for AS7:

JB7.ear
--jboss-deployment-structure.xml
--JB7EJB.jar
--JB7Web.war
--JB7Dao.jar


I have a question regarding AS7 module class loading. I am trying to use the quartz library and setup a module to 
do so. I updated the jboss-deployment-structure.xml to look like this after setting up my quartz module

<jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.0">
    <ear-subdeployments-isolated>true</ear-subdeployments-isolated>
    <deployment>
        <dependencies>

            <module name="org.hibernate" slot="3" />
             <module name="org.quartz" />

        </dependencies>
    </deployment>

</jboss-deployment-structure>

when i deploy and run the app a getthis exception:

Caused by: java.lang.NoClassDefFoundError: org/quartz/SchedulerFactory
    at com.lightspeed.ejb.Session1.hello(Session1.java:22) [JB7EJB.jar:]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_13]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_13]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_13]
    at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_13]
    at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
    at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
    at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:36) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
    at org.jboss.as.jpa.interceptor.SBInvocationInterceptor.processInvocation(SBInvocationInterceptor.java:47)
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
    at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
    at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
    at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
    at org.jboss.as.ejb3.component.pool.PooledInstanceInterceptor.processInvocation(PooledInstanceInterceptor.java:51) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
    at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:228) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
    ... 37 more

When i change the  jboss-deployment-structure.xml to look like this, it runs fine:

<jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.0">
    <ear-subdeployments-isolated>true</ear-subdeployments-isolated>
    <deployment>
        <dependencies>

             <module name="org.hibernate" slot="3" />


        </dependencies>
    </deployment>
    <sub-deployment name="JB7EJB.jar">
        <dependencies>

            <module name="org.quartz" /> 

        </dependencies>
    </sub-deployment>
</jboss-deployment-structure>


I thought that if i put the dependencies under the top 'deployment' section, that all deployments will pick up the quartz module, but i have to add the
  '<sub-deployment name="JB7EJB.jar">' section to have the JB7EJB deloyment pick up the quartz module.

 What am i missing here?

 thank you,

 Bill
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