Re: [equinox-dev] LinkageError when using after returning aspect in Aspe

[Martin Lippert <lippert@xxxxxxx>]

Hi Dirk!

I tried your example with the current build and it seems to work fine. 
Could you try your setting with the latest build of Equinox Aspects in 
order to verify this? (from your description I guess that you are using 
the older version that is part of the examples target project...)

HTH,
-Martin



Dirk Jacobs wrote:
> Hi,
>
> Tx for helping me out.
>
> The included code is a variation of the demo of Heiko so you should add 
> the target that's part of the demo.
> The aspect is now written in .java/Annotation format
> If you comment the line : initializable.initialize(); in TestAspect.java 
> , you will see that everything works.
> Otherwise you get the error :
>
> Caused by: java.lang.LinkageError: loader constraint violation: loader 
> (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) 
> previously initiated loading for a different type with name 
> "org/eclipse/equinox/weaving/demo/hello/internal/Initializable"
>   at 
> org.eclipse.equinox.weaving.hello.aspects.TestAspect.anotherConstruct(TestAspect.java:16) 
>
>   at 
> org.eclipse.equinox.weaving.demo.hello.internal.Activator.start(Activator.java:21) 
>
>   at 
> org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:1009) 
>
>   at java.security.AccessController.doPrivileged(Native Method)
>   at 
> org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1003) 
>
>   ... 14 more
>
> Thanks again,
>
>
> Dirk
>
>
> Martin Lippert wrote:
> > Hi Dirk!
> >
> > Do you have a small ready-to-use project that you can send me as zip? 
> > To me it looks like I should take a closer look into what happens here.
> >
> > Thanks!
> > -Martin
> >
> >
> >
> > Dirk Jacobs wrote:
> > > I created an aspect bundle (a variation of the demo)
> > >
> > > I want to have an initialize method called after a constructor has 
> > > finished.
> > >
> > > The aspect is triggered, but when I want to execute the initialize 
> > > method, I got a linkage error.
> > > All classes are public and the package is exported.
> > >
> > > The aspect is as follows :
> > > package org.eclipse.equinox.weaving.hello.aspects;
> > > import org.aspectj.lang.annotation.AfterReturning;
> > > import org.eclipse.equinox.weaving.demo.hello.internal.Initializable;
> > >
> > > public aspect HelloAspect3 {           after() 
> > > returning(Initializable initializable) : 
> > > call(org.eclipse.equinox.weaving.demo.hello.internal.Initializable+.new(..)) 
> > > {
> > >        if( initializable != null) {
> > >            System.out.println("After Initializable Constructor");
> > >            initializable.initialize();
> > >        } else {
> > >            System.out.println("After Non-Initializable Constructor");
> > >        }
> > >    }
> > > }
> > >
> > > _______________________________________________
> > > equinox-dev mailing list
> > > equinox-dev@xxxxxxxxxxx
> > > https://dev.eclipse.org/mailman/listinfo/equinox-dev
> > _______________________________________________
> > equinox-dev mailing list
> > equinox-dev@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/equinox-dev
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> equinox-dev mailing list
> equinox-dev@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/equinox-dev