Re: [aspectj-users] WebSphere LTW Agent Submitted as Contribution

[Alexandru Popescu <the.mindstorm.mailinglist@xxxxxxxxx>]

#: Ron Bodkin changed the world a bit at a time by saying on  10/3/2005 7:34 AM :#
> Hi Alexandru,
>
> The Aspectwerkz approaches to plugging in AspectJ to older VM's are
> certainly worthy options. Usually, starting these VM's in hotswap mode means
> running in debug mode, which isn't a good option for many uses. Patching the
> VM to add in a preload hook for ClassLoaders is versatile and in some cases
> is the only option. For this project (and many others), it would be easier
> to get acceptance of an approach that involves putting a jar in the
> ClassPath and adds an environment variable using an existing server API,
> rather than patching the VM, out of concern relating to the supportability
> of running with a patched VM.

Many thanks Ron. This is definitely clarifying the decission you have taken.

./alex
--
.w( the_mindstorm )p.

> -----Original Message-----
> From: aspectj-users-bounces@xxxxxxxxxxx
> [mailto:aspectj-users-bounces@xxxxxxxxxxx] On Behalf Of Alexandru Popescu
> Sent: Sunday, October 02, 2005 2:29 AM
> To: aspectj-users@xxxxxxxxxxx
> Subject: Re: [aspectj-users] WebSphere LTW Agent Submitted as Contribution
>
> #: Ron Bodkin changed the world a bit at a time by saying on  10/1/2005 7:24
> PM :#
> > Hi All,
> >
> > Ramnivas and I are working on an interesting project applying AspectJ to
> do
> > fine-grained security in a WebSphere 6.0 environment We wanted to use
> > load-time weaving to let us build modules separately in the RAD IDE and
> then
> > weave at load-time and to mock the EJB container behavior for integration
> > tests. However, WebSphere 6.0 uses IBM's Java 1.4 VM that doesn't support
> > any Java agents for weaving.
> >
> > However, I was able to track down the details of the WebSphere ClassLoader
> > Plug In API (the hard part) and write a simple Plug In that lets you do
> > load-time weaving in AspectJ 5 for application classes in a WebSphere
> > project using the embedded Java 1.4 VM (for older WebSphere
> implementations,
> > this should also work on their Java 1.3 VM's). You can download the jar
> and
> > also read about how to use it in more detail at the AspectJ bugzilla
> report
> > in which I contributed it (see
> > https://bugs.eclipse.org/bugs/show_bug.cgi?id=111027).
> >
> > Thanks,
> > Ron
>
> Hi!
>
> I was wondering if these ideas have been or could have been used to solve
> the above:
>
> [1]
> http://blogs.codehaus.org/people/avasseur/archives/001121_aspectj_aspect_and
> _java_13.html
> [2] 
> http://blogs.codehaus.org/people/avasseur/archives/001140_aspectj_5_load_tim
> e_weaving_with_java_13_using_aspectwerkz.html
>
> thanks,
>
> ./alex
> --
> .w( the_mindstorm )p.
>
> > Ron Bodkin
> > Chief Technology Officer
> > New Aspects of Software
> > w: (415) 824-4690
> > We're Hiring! See www.newaspects.com 
> >
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