Re: [aspectj-users] weaver has problems with serializable generics

[Peter Panec <peter.panec@xxxxxxxxxxxxx>]

I used 1.5.3, but not the lastest dev build. I'll try it on that before 
filing a bug.

Any ideas on a workaround? Even if it gets fixed in a developer build, I 
can't use a
developer build in our production system.

- Peter

Andy Clement wrote:
> I would say an illegalstateexception from inside the weaver is an
> AspectJ bug, nothing you are doing wrong.  Are you on the latest dev
> build of AspectJ? (just in case it is already fixed).  I would
> recommend raising a bugzilla entry for it.
>
> Andy.
>
> On 11/07/07, Peter Panec <peter.panec@xxxxxxxxxxxxx> wrote:
> > The weaver throws an IllegalStateException when I have a generic type
> > that implements Serializable. An example would be:
> >
> >    public class MyList<E> implements List<E>, Serializable
> >     {
> >        ...
> >     }
> >
> > The problem occurs when the weaver is handling an advice of the form:
> >
> >     @AfterReturning(pointcut="execution(public List
> > com.mitratech.*.get*())", returning="rlist")
> >     public void afterReturningListMethod (List rlist)
> >     {
> >         //do something or nothing
> >     }
> >
> > The weaver throws the following error:
> >
> > abort ABORT -- (IllegalStateException) Can't ask to parameterize a
> > member of non-generic type: com.mitratech.MyList  kind(raw)
> > Can't ask to parameterize a member of non-generic type:
> > com.mitratech.MyList  kind(raw)
> > java.lang.IllegalStateException: Can't ask to parameterize a member of
> > non-generic type: com.mitratech.MyList  kind(raw)
> >     at
> > org.aspectj.weaver.ResolvedMemberImpl.parameterizedWith(ResolvedMemberImpl.java:612) 
> >
> >     at
> > org.aspectj.weaver.ResolvedMemberImpl.parameterizedWith(ResolvedMemberImpl.java:597) 
> >
> >     at
> > org.aspectj.weaver.ReferenceType.getDeclaredFields(ReferenceType.java:377) 
> >
> >     at
> > org.aspectj.weaver.bcel.LazyClassGen.hasSerialVersionUIDField(LazyClassGen.java:315) 
> >
> >     at 
> > org.aspectj.weaver.bcel.LazyClassGen.<init>(LazyClassGen.java:280)
> >     at
> > org.aspectj.weaver.bcel.BcelObjectType.getLazyClassGen(BcelObjectType.java:460) 
> >
> >     at org.aspectj.weaver.bcel.BcelWeaver.weave(BcelWeaver.java:1568)
> >     ...
> >
> > I'm wondering if there is a bug here. The reason I say this is that I
> > tried in on the Java source code for generic collections. Sure enough,
> > the weaver had problems with the Java generic ArrayList. Note the
> > problem only occurs when I run it on the source code; the weaver does
> > not have problems with the compiled ArrayList in rt.jar.
> >
> > I have pinpointed the problem to the presence of the Serializable
> > interface in the implements clause. If I remove Serializable from the
> > declaration of MyList above, as well as from the Java ArrayList class,
> > the weaver is happy.
> >
> > I tried using Externalizable instead of Serializable, but to no avail. I
> > really need my class to be serialized and I can't think of any
> > workaround. Any help on this matter would be appreciated.
> >
> > Thanks.
> >
> > - Peter
> >
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