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From Gary Gregory <GGreg...@seagullsoftware.com>
Subject RE: [LANG] 3.0 JCIP Annotations
Date Fri, 20 Mar 2009 17:25:06 GMT
> -----Original Message-----
> From: sebb [mailto:sebbaz@gmail.com]
> Sent: Friday, March 20, 2009 9:47 AM
> To: Commons Developers List
> Subject: Re: [LANG] 3.0 JCIP Annotations
> 
> On 20/03/2009, James Carman <james@carmanconsulting.com> wrote:
> > On Fri, Mar 20, 2009 at 11:40 AM, sebb <sebbaz@gmail.com> wrote:
> >  > It's only optional at run-time; it's not optional at compile-time.
> >  >
> >
> >
> > Right.  That's what optional means.
> 
> I thought I understood optional, obviously I didn't.
> 
> How does one express a dependency that really is optional at compile time?
> 
> >  Putting it as optional in Maven
> >  will change the dependencies report:
> >
> >  http://commons.apache.org/proxy/dependencies.html
> 
> I find the text on the report very confusing.
> 
> Does (optional) mean "optional at compile and runtime" or "optional
> for transitive dependencies"? Or something else?
> 
> [BTW, JUnit should be updated to 3.8.2]

Why not migrate to JUnit 4.5 since lang 3.0 is Java 5-based?

Gary

> 
> Niall wrote that the use of optional caused problems for OSGI
> dependencies, and I thought I saw that myself when I tried building
> httpcore-osgi earlier - but now when I try that it works fine.
> 
> My head is spinning!
> 
> >  None of the dependencies in Proxy (other than the JDK itself) are
> >  required.  However, maven does put them on the classpath so that Proxy
> >  will compile.  When a user declares a dependency on Proxy, they don't
> >  get all of that extra stuff automatically.
> >
> >
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> >
> 
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