RE: anything wrong?- beginner problem

Hi Jonas,
  Thank you!
  Is it a bit more convenient to eliminate the case sensitive issue?=20
  Sorry there was another error message and it seems that it could not =
access private method:
 =20
C:\aspectwerkz>aspectwerkz -cp =
test/notepad.jar;lib/commons-collections-2.1.jar
-Daspectwerkz.definition.file=3Dtest/samples.xml =
-Daspectwerkz.metadata.dir=3D./ Notepad
--> Notepad::NewFile
java.lang.IllegalAccessException: Class =
aspectwerkz.joinpoint.MemberMethodJoinPo
int can not access a member of class Notepad with modifiers "private"
        at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:57)
        at java.lang.reflect.Method.invoke(Method.java:317)
        at =
aspectwerkz.joinpoint.MemberMethodJoinPoint.proceed(MemberMethodJoinP
oint.java:92)
        at LoggingAdvice.execute(loggingadvice.java:23)
        at =
aspectwerkz.advice.MethodAdvice.doExecute(MethodAdvice.java:74)
        at =
aspectwerkz.joinpoint.MemberMethodJoinPoint.proceed(MemberMethodJoinP
oint.java:103)
        at Notepad.NewFile(Notepad.java)
        at Notepad.access$000(Notepad.java:63)
        at Notepad$1.actionPerformed(Notepad.java:175)
        at =
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:17
64)
.....

cheers,
Weishan




-----Original Message-----
From: Jonas Bon=E9r [mailto:[email protected]]=20
Sent: Saturday, May 03, 2003 9:05 PM
To: Zhang Weishan
Cc: [email protected]
Subject: Re: [aspectwerkz-developer] anything wrong?- beginner problem

Hi Weishan.

Thanks a lot for helping me catch a nasty bug :-) :

it is (in the 0.4 release) not possible to define a pointcut that picks=20
out *both* static and member methods; creates errors like the one below.
This has now been fixed and I will commit it to the CVS among with the=20
other stuff I am working on soon.

Back to your example: the pointcut selection is *case-sensitive* so you=20
have to use "N.*" if you want to advise the NewFile method.
And until the bug is patched, don't mix static and member methods in the =

pointcuts.

Sorry for this.

- Jonas



Zhang Weishan wrote:
> Hi,
>   There is method named NewFile(), and if you use ".*", an error is =
throwed:
>   C:\aspectwerkz>aspectwerkz -cp =
test/notepad.jar;lib/commons-collections-2.1.jar
> -Daspectwerkz.definition.file=3Dtest/samples.xml =
-Daspectwerkz.metadata.dir=3D_metaD
> ata Notepad
> java.lang.Error: should be unreachable
>         at =
aspectwerkz.MethodComparator.comparePrefixed(MethodComparator.java:14
> 4)
>         at =
aspectwerkz.MethodComparator.compare(MethodComparator.java:68)
>         at java.util.Arrays.mergeSort(Arrays.java:1237)
>         at java.util.Arrays.mergeSort(Arrays.java:1244)
>         at java.util.Arrays.mergeSort(Arrays.java:1245)
>         at java.util.Arrays.sort(Arrays.java:1185)
>         at java.util.Collections.sort(Collections.java:151)
>         at =
aspectwerkz.AspectWerkz.createMethodRepository(AspectWerkz.java:437)
>         at aspectwerkz.AspectWerkz.loadMethods(AspectWerkz.java:416)
>         at aspectwerkz.AspectWerkz.initialize(AspectWerkz.java:386)
>         at =
aspectwerkz.joinpoint.MethodJoinPoint.<init>(MethodJoinPoint.java:62)
>=20
>         at =
aspectwerkz.joinpoint.StaticMethodJoinPoint.<init>(StaticMethodJoinPo
> int.java:48)
>         at Notepad.main(Notepad.java)
> Exception in thread "main"
>=20
> Thanks,
> Weishan
>=20
>=20
>=20
>=20
> -----Original Message-----
> From: Jonas Bon=E9r [mailto:[email protected]]=20
> Sent: Saturday, May 03, 2003 6:43 PM
> To: Zhang Weishan
> Cc: [email protected]
> Subject: Re: [aspectwerkz-developer] anything wrong?- beginner problem
>=20
> Hi.
>=20
> Which method/methods are you trying to advise?
>=20
> When I look at your Notepad.java I can't see any methods named =
something=20
> starting with the letter n. If you want to log all methods in the =
class=20
> use: .*
>=20
> - Jonas
>=20
> Zhang Weishan wrote:
>=20
>>Hello everyone,
>>
>>  I tried to run the simple logging advice with a Notepad example, but =
I=20
>>was in trouble. All the used files, including the xml definition file, =

>>compiled and source logging advice, compiled and source Notepad reside =

>>in one directory named test. I jar the complied logging advice and=20
>>Notepad into a notepad.jar.
>>
>>  The logging advice which is almost the same as the original one, the =

>>only difference is that I removed the package declaration to make life =

>>easier.
>>
>>  Here is the xml definition file which resides:
>>
>><aspectwerkz>
>>
>>    <advice name=3D"xmt"
>>
>>        advice=3D"LoggingAdvice"
>>
>>        deploymentModel=3D"perClass"/>
>>
>>=20
>>
>>    <aspect class=3D"Notepad">
>>
>>        <pointcut type=3D"method" pattern=3D"n.*">
>>
>>            <advice-ref name=3D"xmt"/>
>>
>>        </pointcut>
>>
>>    </aspect>
>>
>>=20
>>
>>  Here is the command I used to invoke the framework.
>>
>>C:\aspectwerkz>aspectwerkz -cp=20
>>test/notepad.jar;lib/commons-collections-2.1.jar
>>
>>-Daspectwerkz.definition.file=3Dtest/samples.xml=20
>>-Daspectwerkz.metadata.dir=3D_metaD
>>
>>ata Notepad
>>
>>=20
>>
>>The notepad runs but there is no logging info displayed in the =
console.=20
>>No matter what the method pattern, for example, set.*, n.*, it simply=20
>>did not work.
>>
>>=20
>>
>>Thanks,
>>
>>Weishan
>>
>>=20
>>
>=20
>=20
>=20


--=20
Jonas
http://freeroller.net/page/jboner





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