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Re: [aspectj-users] Re: java.lang.ArrayIndexOutOfBoundsException Error
Terry,

I am quite sure if I understand the question. However, you shouldn't have to do anything special to have arguments available to the ProceedingJoinPoint object in an around advice; its getArgs() method will give you an array of objects at the advised join point.

-Ramnivas

On Sat, Mar 1, 2008 at 1:19 AM, Lau Man Kwong <kinthecastle@xxxxxxxxx> wrote:
Hi Eric,
 
Thanks for your hints.
 
From the stacktrace, I got the "com.at.aspect.LoggingAspect.log(Unknown Source)". That's related to the method of LoggingAspect class "public Object log(ProceedingJoinPoint call)". As you mentioned, the proceedingJoinPoint may has no value so it shows java.lang.ArrayIndexOutOfBoundsException Error.
 
My question is that does aspectJ provide the argument to the ProceedingJoinPoint according to the spring configuration file? If yes, what setting that I have set incorrectly in the spring configuration file?
 
Thanks!!!
 
Regards,
Terry


 
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Today's Topics:

  1. aspect on a java API class (ldelaforge@xxxxxxx)
  2. java.lang.ArrayIndexOutOfBoundsException Error (Lau Man Kwong)
  3. Re: java.lang.ArrayIndexOutOfBoundsException Error (Eric Bodden)


----------------------------------------------------------------------

Message: 1
Date: Fri, 29 Feb 2008 17:59:18 +0100
From: ldelaforge@xxxxxxx
Subject: [aspectj-users] aspect on a java API class
To: aspectj-users@xxxxxxxxxxx
Message-ID:
       <OF445806EF.93D9E0D7-ONC12573FE.005CFC0C-C12573FE.005D5206@xxxxxxx>
Content-Type: text/plain; charset="us-ascii"

Hi all,

I am (still) trying to put a joinpoint on a java API class :
java.math.BigDecimal
I try to do it with load time weaving LTW (with a JavaAgent)

My aspect is like this :
@Aspect
public class AppAspect {
   @After("execution(* java.math.BigDecimal.valueOf(..))")
                       public void afterBigDecimal(JoinPoint jp) {
                               System.out.println("grouik BigDecimal");
   }
}

And, because I know it is normally not authorized to do it,
I bypass the loading of the BigDecimal of the rt.jar, by bootloading an
extracted java.math.BigDecimal.
I do it by adding in the JVM parameters
-Xbootclasspath/p:"D:\...\target\test-classes\temp"
where ...\temp\ contains java\math\BigDecimal.class

But when I execute this, the advise is not executed...

Is the bypass a good solution ? If yes, why does it not working ? If no,
is there another way ?

Thanks in advance.

Laurent Delaforge


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Message: 2
Date: Sat, 1 Mar 2008 01:40:38 +0800
From: "Lau Man Kwong" <kinthecastle@xxxxxxxxx>
Subject: [aspectj-users] java.lang.ArrayIndexOutOfBoundsException
       Error
To: aspectj <aspectj-users@xxxxxxxxxxx>
Message-ID:
       <53981a8a0802290940v6c736b82gef0b99bc3a59a16c@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"


Hi,

I'm new to aspectj. When I do some practice on aspectj, an error "
java.lang.ArrayIndexOutOfBoundsException: 0 at
com.at.aspect.LoggingAspect.log(Unknown Source)" was encountered. I have
searched on internet but get no answer. Can you give me some hints for this
error?

I am using AspectJ 1.5.4, Spring 2.0 and JDK 5.0 on this project.

I have attached some codes and stacktrace. Thanks!!!

Regards,
Terry

*LoggingAspect.java*

package com.at.aspect;

import org.aspectj.lang.ProceedingJoinPoint;

public class LoggingAspect {
public Object log(ProceedingJoinPoint call) throws Throwable
   {
       System.out.println("from logging aspect: entering method [" +
call.toShortString()
                           +"] with param:"+call.getArgs()[0] );

       Object point =  call.proceed();

       System.out.println("from logging aspect: exiting method [" +
call.toShortString()
                           + "with return as:" +point);

       return point;
   }

}
*Spring Configuration File*

<bean id="myLoggingAspect" class="com.at.aspect.LoggingAspect"/>
<bean id="printReportBean" class="com.at.services.PrintReportManagerImpl">
      <property name="hibernateDAO" ref="HibernateDAO"/>
</bean>
<aop:config>
    <aop:aspect ref="myLoggingAspect">
       <aop:pointcut id="myCutLogging"
                  _expression_="execution(*
com.at.services.PrintReportManagerImpl*.*(..))"/>
       <aop:around pointcut-ref="myCutLogging" method="log"/>
    </aop:aspect>
</aop:config>

*Error*

2008-03-01 01:25:03,984 [org.apache.struts.action.RequestProcessor]-[WARN]
Unhandled Exception thrown: class java.lang.ArrayIndexOutOfBoundsException
2008-03-01 01:25:03,984
[org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/AssetApp].[action]]-[ERROR]
Servlet.service() for servlet action threw exception
java.lang.ArrayIndexOutOfBoundsException: 0
at com.at.aspect.LoggingAspect.log(Unknown Source)
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
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs
(AbstractAspectJAdvice.java:597)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod
(AbstractAspectJAdvice.java:583)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(
AspectJAroundAdvice.java:60)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:171)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(
ExposeInvocationInterceptor.java:89)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(
JdkDynamicAopProxy.java:204)
at $Proxy1.getConn(Unknown Source)
at com.at.web.PrintReportAction.printAssetList(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(
NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(
DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.struts.actions.DispatchAction.dispatchMethod(
DispatchAction.java:270)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java
:187)
at org.apache.struts.action.RequestProcessor.processActionPerform(
RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java
:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(
ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(
StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(
StandardContextValve.java:178)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(
AuthenticatorBase.java:432)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:105)
at org.apache.catalina.core.StandardEngineValve.invoke(
StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:869)
at
org.apache.coyote.http11.Http11BaseProtocol$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)
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------------------------------

Message: 3
Date: Fri, 29 Feb 2008 13:14:45 -0500
From: "Eric Bodden" <eric.bodden@xxxxxxxxxxxxxx>
Subject: Re: [aspectj-users] java.lang.ArrayIndexOutOfBoundsException
       Error
To: aspectj-users@xxxxxxxxxxx
Message-ID:
       <804e3c660802291014o16d7130bx8573778b8a33cfd9@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset=ISO-8859-1


Maybe there are calls that have no arguments?

Eric

On 29/02/2008, Lau Man Kwong <kinthecastle@xxxxxxxxx> wrote:
> Hi,
>
> I'm new to aspectj. When I do some practice on aspectj, an error
> "java.lang.ArrayIndexOutOfBoundsException: 0 at
> com.at.aspect.LoggingAspect.log(Unknown Source)" was encountered. I have
> searched on internet but get no answer. Can you give me some hints for this
> error?
>
> I am using AspectJ 1.5.4, Spring 2.0 and JDK 5.0 on this project.
>
> I have attached some codes and stacktrace. Thanks!!!
>
> Regards,
> Terry
>
> LoggingAspect.java
>
>
> package com.at.aspect;
>
> import org.aspectj.lang.ProceedingJoinPoint;
>
> public class LoggingAspect {
>  public Object log(ProceedingJoinPoint call) throws Throwable
>     {
>         System.out.println("from logging aspect: entering method [" +
> call.toShortString()
>                             +"] with param:"+call.getArgs()[0] );
>
>         Object point =  call.proceed();
>
>         System.out.println("from logging aspect: exiting method [" +
> call.toShortString()
>                             + "with return as:" +point);
>
>         return point;
>     }
>
> }
>
> Spring Configuration File
>
> <bean id="myLoggingAspect" class="com.at.aspect.LoggingAspect"/>
> <bean id="printReportBean"
> class="com.at.services.PrintReportManagerImpl">
>        <property name="hibernateDAO" ref="HibernateDAO"/>
>  </bean>
> <aop:config>
>      <aop:aspect ref="myLoggingAspect">
>         <aop:pointcut id="myCutLogging"
>                    _expression_="execution(*
> com.at.services.PrintReportManagerImpl*.*(..))"/>
>          <aop:around pointcut-ref="myCutLogging" method="log"/>
>      </aop:aspect>
>   </aop:config>
>
> Error
>
> 2008-03-01 01:25:03,984
> [org.apache.struts.action.RequestProcessor]-[WARN]
> Unhandled Exception thrown: class
> java.lang.ArrayIndexOutOfBoundsException
> 2008-03-01 01:25:03,984
> [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/AssetApp].[action]]-[ERROR]
> Servlet.service() for servlet action threw exception
>  java.lang.ArrayIndexOutOfBoundsException: 0
>  at com.at.aspect.LoggingAspect.log(Unknown Source)
>  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
> org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:597)
>   at
> org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:583)
>  at
> org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:60)
>  at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
>   at
> org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
>  at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
>   at
> org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
>  at $Proxy1.getConn(Unknown Source)
>  at com.at.web.PrintReportAction.printAssetList(Unknown
> Source)
>  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
> org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)
>  at
> org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)
>  at
> org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
>   at
> org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
>  at
> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
>  at
> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
>   at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
>  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
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>  at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
>   at
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
>  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)
> _______________________________________________
>  aspectj-users mailing list
>  aspectj-users@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/aspectj-users
>
>


--
Eric Bodden
Sable Research Group
McGill University, Montréal, Canada


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