[aspectwerkz-user] class not found exception after hotdeploy - please help

Hi,

 It seems to be related to my not fully understanding
the relationships between deployment scope,
aspect/pointcut and classloaders.

 I have the following scenario. I put a jar file with
the aspect and aop.xml in WEB-INF/lib to define a
deployment scope.

 Here is the aop.xml
<!DOCTYPE aspectwerkz PUBLIC
    "-//AspectWerkz//DTD//EN"
   
"http://aspectwerkz.codehaus.org/dtd/aspectwerkz.dtd">

<aspectwerkz>
    <system id="webapp">
        <aspect class="demoaspect.DemoAspect">
            <deployment-scope name="response_time"
expression="execution(public * org.appfuse..*.*(..))
AND !within(demoaspect..*)"/>
        </aspect>
    </system>
</aspectwerkz>

When one of the web action is invoked I deploy the
aspect using following code.

        if
(user.getUsername().equalsIgnoreCase("hotdeploy")) {
        	log.info("encountered 'hotdeploy' user");
        	SystemDefinition sysDef =
SystemDefinitionContainer.
	       
getDefinitionFor(this.getClass().getClassLoader(),
"webapp");
        	if(sysDef != null) {
        		log.info("found system definition");
                System.out.println("SystemDefinition
found!");
                DeploymentScope scope =
sysDef.getDeploymentScope("response_time");
                log.info("found deployment scope : " +
scope.getExpression());
                System.out.println("Scope is:
"+scope.getExpression());
                if (scope != null) {
            	    DeploymentHandle handle = 
            	    	Deployer.deploy(DemoAspect.class,
"<aspect name='measureTime'>" +
            	    			"<pointcut name='usermanager' " + 
								"expression='execution(public *
org.appfuse.service.UserManager.*.*(..)) AND
!within(demoaspect..*)' " +
								"/> " +
								"<advice name='trace' type='around'
bind-to='usermanager'/> " +
								"</aspect>",scope);

                }
            }
        }

When this piece of code is called I get following
exception. I am including some enclosing print
statements too:



demoapp] INFO [http-8080-Processor23]
SignupForm.aw$original$_AW_$save$_AW_$org_appfuse_webapp_action_SignupForm(82)
| encountered 'hotdeploy' user
[demoapp] INFO [http-8080-Processor23]
SignupForm.aw$original$_AW_$save$_AW_$org_appfuse_webapp_action_SignupForm(86)
| found system definition
SystemDefinition found!
[demoapp] INFO [http-8080-Processor23]
SignupForm.aw$original$_AW_$save$_AW_$org_appfuse_webapp_action_SignupForm(89)
| found deployment scope : execution(public *
org.appfuse..*.*(..)) AND !within(demoaspect..*)
Scope is: execution(public * org.appfuse..*.*(..)) AND
!within(demoaspect..*)
Deployer::INFO - deploying aspect
[demoaspect.DemoAspect] in class loader
[WebappClassLoader
  delegate: false
  repositories:
    /WEB-INF/classes/
----------> Parent Classloader:
org.apache.catalina.loader.StandardClassLoader@18ca663
]
AW::WARNING - could not load class
[org/appfuse/model/User$$BulkBeanByCGLIB$$f86a5545] as
a resource in loader [WebappClassLoader
  delegate: false
  repositories:
    /WEB-INF/classes/
----------> Parent Classloader:
org.apache.catalina.loader.StandardClassLoader@18ca663
]
....
Caused by: java.io.IOException: Class not found
	at
org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(AsmClassInfo.java:317)
	at
org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(AsmClassInfo.java:331)
	at
org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.createClassInfoFromStream(AsmClassInfo.java:790)
	at
org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(AsmClassInfo.java:273)
	at
org.codehaus.aspectwerkz.transform.inlining.compiler.JoinPointFactory.getJoinPointsMatching(JoinPointFactory.java:158)
	at
org.codehaus.aspectwerkz.transform.inlining.deployer.Deployer.redefine(Deployer.java:402)
	at
org.codehaus.aspectwerkz.transform.inlining.deployer.Deployer.deploy(Deployer.java:306)
	at
org.codehaus.aspectwerkz.transform.inlining.deployer.Deployer.deploy(Deployer.java:241)
	at
org.appfuse.webapp.action.SignupForm.aw$original$_AW_$save$_AW_$org_appfuse_webapp_action_SignupForm(SignupForm.java:93)
	at
org.appfuse.webapp.action.SignupForm_1__1085656376_3523570___AW_JoinPoint.invoke(Unknown
Source)
	at
org.appfuse.webapp.action.SignupForm.save(SignupForm.java)
	at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at
net.sourceforge.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:135)
	... 58 more
Caused by: java.io.IOException: Class not found
	at
org.codehaus.aspectwerkz.org.objectweb.asm.ClassReader.readClass(Unknown
Source)
	at
org.codehaus.aspectwerkz.org.objectweb.asm.ClassReader.<init>(Unknown
Source)
	at
org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(AsmClassInfo.java:304)
	... 73 more