ArrayIndexOutOfBoundsException in CGLIB generated proxy on advised bean.

[jacmorel]

Given this aspect

package com.sabre.liberty.greenbeans.pnr;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.beans.factory.annotation.Required;

@Aspect
public class PssBypassAspect {
   private PssBypassEngine bypassEngine;

   @Pointcut("execution (* *.invoke(String)) && this(com.sabre.liberty.greenbeans.pnr.PnrBaseController+)")
   protected void controllerInvocation() {
   }

   @Around("controllerInvocation() && args(command)")
   public Object bypass(ProceedingJoinPoint thisJointPoint, String command) throws Throwable {
      if (bypassEngine.isBypassing())
         return bypassEngine.bypass(command);
      else
         return thisJointPoint.proceed(new Object[]{command});
   }

   @Required
   public void setBypassEngine(PssBypassEngine bypassEngine) {
      this.bypassEngine = bypassEngine;
   }
}

weaved by spring through

   <aop:aspectj-autoproxy proxy-target-class="true">
      <aop:include name="pssBypassAspect"/>
   </aop:aspectj-autoproxy>

   <bean name="pssBypassAspect" class="com.sabre.liberty.greenbeans.pnr.PssBypassAspect">
      <property name="bypassEngine" ref="bypassEngine"/>
   </bean>

On this bean

package com.sabre.liberty.greenbeans.pnr;

import com.sabre.liberty.greenbeans.*;

public class PnrBaseController extends ActionController {
   @Override
   public ControllerResults invoke(String request) throws Exception {
      return super.invoke(request);
   }
}

package com.sabre.liberty.greenbeans;

import org.springframework.context.*;

public class ActionController extends GreenBeanController implements MessageSourceAware {
   public ControllerResults invoke(String request) throws Exception {
      return invoke(new InvocationContext(request));
   }

   public ControllerResults invoke(ControllerInput request) throws Exception {
      return invoke(new InvocationContext(request));
   }

   private ControllerResults invoke(InvocationContext context) throws Exception {
      // something
   }
}

I sometimes get this exception (not consistently. May be due to MT environment):

java.lang.ArrayIndexOutOfBoundsException: 0
        at com.sabre.liberty.greenbeans.GreenBeanController$$FastClassByCGLIB$$20773acc.invoke(<generated>)
        at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:163)
        at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:695)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:139)
        at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:161)
        at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:630)
        at com.sabre.liberty.greenbeans.pnr.PnrRemarkController$$EnhancerByCGLIB$$960cc3fc.getParser(<generated>)
        at com.sabre.liberty.greenbeans.GreenBean.getParser(GreenBean.java:140)
        at com.sabre.liberty.greenbeans.GreenBean.validateParserSpecification(GreenBean.java:122)
        at com.sabre.liberty.greenbeans.GreenBean.initCommandParser(GreenBean.java:114)
        at com.sabre.liberty.greenbeans.GreenBean.getGreenBeanController(GreenBean.java:100)
        at com.sabre.liberty.greenbeans.GreenScreenMVCController.handleRequest(GreenScreenMVCController.java:87)
        at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:857)
        at com.sabre.liberty.greenbeans.GreenScreenDispatcherServlet.delegateDispatch(GreenScreenDispatcherServlet.java:132)
        at com.sabre.liberty.greenbeans.GreenScreenDispatcherServlet.doDispatch(GreenScreenDispatcherServlet.java:58)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:792)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:461)
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:416)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.sabre.liberty.clients.mom.MOMFilter.handleMOMRequest(MOMFilter.java:93)
        at com.sabre.liberty.clients.mom.MOMFilter.doFilter(MOMFilter.java:73)
        at com.sabre.liberty.clients.ServletFilter.doFilter(ServletFilter.java:31)
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:138)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.sabre.liberty.greenbeans.util.DebugFilter.doFilter(DebugFilter.java:20)
        at com.sabre.liberty.clients.ServletFilter.doFilter(ServletFilter.java:31)
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:138)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.sabre.liberty.clients.filters.EventLoggingFilter.doFilter(EventLoggingFilter.java:38)
        at com.sabre.liberty.clients.ServletFilter.doFilter(ServletFilter.java:31)
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:138)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.sabre.liberty.greenbeans.session.SessionSetupFilter.doFilter(SessionSetupFilter.java:32)
        at com.sabre.liberty.clients.ServletFilter.doFilter(ServletFilter.java:31)
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:138)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.sabre.liberty.clients.filters.ExceptionHandlingFilter.doFilter(ExceptionHandlingFilter.java:26)
        at com.sabre.liberty.clients.ServletFilter.doFilter(ServletFilter.java:31)
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:138)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:63)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:204)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:595)

My environment is 4xdual core AMD64 running RH2.6, jdk1.5.0_07, spring 2.0.5, CGLIB2.2.beta1

Any ideas?
Is there a way to dump the bytecode of CGLIB generated classes into .class file?

Thanks in advance

Jacques

[plethora]

Why are you using a CGLIB beta?

I would swear I once knew how to obtain bytecode from a running Sun JVM - but I can't remember anymore. It might have involved using the JVM debug interfaces or processing SA JVM dumps.

[plethora]

One obvious trick would be using bootclasspath to load a patched java.lang.ClassLoader. That has saved my day serveral times.

[dishan]

I'm also getting the same exception and I've noticed it is random as you said. Additionally it is mostly not occurring when I try to debug.

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0
at it.codegen.tbx.accommodationmanager.loadingclient. presentation.AccomManagerMainFrame$$EnhancerByCGLI B$$24358384$$FastClassByCGLIB$$8556c1e7.invoke(<ge nerated>)
at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodP roxy.java:187)
at dynaop.InvocationImpl.invokeTarget(InvocationImpl. java:47)
at dynaop.ProxyInvocationHandler.invoke(ProxyInvocati onHandler.java:110)
at dynaop.ClassProxyInvocationHandler.intercept(Class ProxyInvocationHandler.java:36)
at it.codegen.tbx.accommodationmanager.loadingclient. presentation.AccomManagerMainFrame$$EnhancerByCGLI B$$24358384.validate(<generated>)
at java.awt.Window.dispatchEventImpl(Window.java:2438 )
at java.awt.Component.dispatchEvent(Component.java:42 43)
at java.awt.EventQueue.dispatchEvent(EventQueue.java: 599)
at java.awt.EventDispatchThread.pumpOneEventForFilter s(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(E ventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThre ad.java:121)



I'm using jdk1.6.0_06 and cglib-2.2_beta1.jar (as you did). Please do post if you find a solution to this.

Thanks,
Dishan

[dishan]

There is a new update for cglib-2.2_beta1.jar in following location.

http://sourceforge.net/projects/cgli.../cglib2/2.2.2/

I used cglib-2.2.2.jar and it worked. If you have any question please do let me know.

Cheers,
Dishan