JBoss 6 AS with AOP throws StackOverflowError - jboss

Question

I am using JBoss 6 AS and trying to add via AOP an interceptor to the classes in some package from a deployed application. This is the scenario:
I have an app.jar that contains the classes to which I want to add advices. This JAR also has some EJBs (ejb-jar.xml, jboss.xml).
I created my on JBoss interceptor like this :
package util;
import org.jboss.aop.joinpoint.Invocation;
import org.jboss.aop.joinpoint.MethodInvocation;
public class MyInterceptor implements org.jboss.aop.advice.Interceptor {
#Override
public Object invoke(Invocation invocation) throws Throwable {
long startTime = System.currentTimeMillis();
try {
return invocation.invokeNext();
} finally {
long endTime = System.currentTimeMillis() - startTime;
System.out.println("MyInterceptor : " + endTime);
if (invocation instanceof MethodInvocation) {
MethodInvocation mi = (MethodInvocation) invocation;
String clazz = "";
String method = "";
try {
clazz = mi.getTargetObject().getClass().toString();
method = mi.getMethod().getName();
} catch (Throwable e) {
System.out.println("Error when trying to get target info");
}
System.out.println("MyInterceptor : " + endTime);
}
}
}
#Override
public String getName() {
return "MyInterceptor";
}
}
I created a jboss-aop.xml file that contains:
<?xml version="1.0" encoding="UTF-8"?>
<aop xmlns="urn:jboss:aop-beans:1.0">
<interceptor name="MyInterceptor" class="util.MyInterceptor"/>
<bind pointcut="execution(* my.app.*->*(..))">
<interceptor-ref name="MyInterceptor"/>
</bind>
</aop>
I have set enableLoadTimeWeaving (bootstrap/aop.xml)
I have pluggable-instrumentor.jar in the right place (JBOSS/bin)
I have started the server with the option -javaagent:pluggable-instrumentor.jar
I have created a JAR file interceptor.jar where I put MyInterceptor.class and in its META-INF I've placed the jboss-aop.xml file
Now, that being said, the problem is that when I run my application and some method from any class from my.app package is being called the interceptor seems to intercept the call but it throws a nasty StackOverflowError. This is a part of my error stack:
java.lang.StackOverflowError
at org.jboss.resteasy.core.SynchronousDispatcher.unwrapException(SynchronousDispatcher.java:345) [:6.1.0.Final]
at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:321) [:6.1.0.Final]
at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [:6.1.0.Final]
at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [:6.1.0.Final]
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:534) [:6.1.0.Final]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496) [:6.1.0.Final]
at org.jboss.resteasy.core.SynchronousDispatcher.invokePropagateNotFound(SynchronousDispatcher.java:155) [:6.1.0.Final]
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:212) [:6.1.0.Final]
at org.jboss.resteasy.plugins.server.servlet.FilterDispatcher.doFilter(FilterDispatcher.java:59) [:6.1.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274) [:6.1.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.1.0.Final]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [:6.1.0.Final]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [:6.1.0.Final]
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:181) [:6.1.0.Final]
at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.event(CatalinaContext.java:285) [:1.1.0.Final]
at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.invoke(CatalinaContext.java:261) [:1.1.0.Final]
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:88) [:6.1.0.Final]
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:100) [:6.1.0.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:159) [:6.1.0.Final]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [:6.1.0.Final]
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) [:6.1.0.Final]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [:6.1.0.Final]
at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.invoke(ActiveRequestResponseCacheValve.java:53) [:6.1.0.Final]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [:6.1.0.Final]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [:6.1.0.Final]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:654) [:6.1.0.Final]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951) [:6.1.0.Final]
at java.lang.Thread.run(Thread.java:745) [:1.7.0_79]
Caused by: java.lang.StackOverflowError
at my.app.JoinPoint_invoke_N_5164114663869737738_3.invokeJoinpoint(JoinPoint_invoke_N_5164114663869737738_3.java) [:]
at my.app.MyInterceptor$MyInterceptorAdvisor.invoke_N_5164114663869737738(MyInterceptor$MyInterceptorAdvisor.java) [:]
at my.app.MyInterceptor.invoke(MyInterceptor.java) [:]
at my.app.JoinPoint_invoke_N_5164114663869737738_3.invokeNext(JoinPoint_invoke_N_5164114663869737738_3.java) [:]
at my.app.JoinPoint_invoke_N_5164114663869737738_3.invokeJoinpoint(JoinPoint_invoke_N_5164114663869737738_3.java) [:]
at my.app.MyInterceptor$MyInterceptorAdvisor.invoke_N_5164114663869737738(MyInterceptor$MyInterceptorAdvisor.java) [:]
at my.app.MyInterceptor.invoke(MyInterceptor.java) [:]
Basically what happens is that these four lines are being thrown until StackOverflowError gets raised:
at my.app.JoinPoint_invoke_N_5164114663869737738_3.invokeNext(JoinPoint_invoke_N_5164114663869737738_3.java) [:]
at my.app.JoinPoint_invoke_N_5164114663869737738_3.invokeJoinpoint(JoinPoint_invoke_N_5164114663869737738_3.java) [:]
at my.app.MyInterceptor$MyInterceptorAdvisor.invoke_N_5164114663869737738(MyInterceptor$MyInterceptorAdvisor.java) [:]
at my.app.MyInterceptor.invoke(MyInterceptor.java) [:]
If anyone had some similar problem any help would be appeciated!

Answer 1

Well i found the problem ... i put the interceptor on the same package my.app and not in util ... so eventually it was calling itself endlessly until the stack was full . So ... my bad