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From "Niall Pemberton" <niall.pember...@gmail.com>
Subject Re: [all] Showing the Java Version on component sites
Date Sun, 09 Mar 2008 19:41:16 GMT
On Sun, Mar 9, 2008 at 7:32 PM, Dennis Lundberg <dennisl@apache.org> wrote:
>
> Niall Pemberton wrote:
>  > On Sun, Mar 9, 2008 at 1:40 PM, Dennis Lundberg <dennisl@apache.org> wrote:
>  >> Niall Pemberton wrote:
>  >>  > On Sun, Mar 9, 2008 at 10:50 AM, Dennis Lundberg <dennisl@apache.org>
wrote:
>  >>  >> Niall Pemberton wrote:
>  >>  >>  > On Sat, Mar 8, 2008 at 4:19 PM, Dennis Lundberg <dennisl@apache.org>
wrote:
>  >>  >>  >> Niall Pemberton wrote:
>  >>  >>  >>  > On Thu, Mar 6, 2008 at 10:00 PM, Dennis Lundberg
<dennisl@apache.org> wrote:
>  >>  >>  >>  >> Niall Pemberton wrote:
>  >>  >>  >>  >>  > On Thu, Mar 6, 2008 at 7:38 PM, Dennis
Lundberg <dennisl@apache.org> wrote:
>  >>  >>  >>  >>  >> Niall Pemberton wrote:
>  >>  >>  >>  >>  >>  > I just re-published all the component
sites and notice that (by
>  >>  >>  >>  >>  >>  > mistake) it had used a patched
copy of the
>  >>  >>  >>  >>  >>  > maven-project-info-reports-plugin
that I have in my local repo
>  >>  >>  >>  >>  >>  > (sorry!). Anyway I submitted
a patch to maven to include the Java
>  >>  >>  >>  >>  >>  > version on the dependencies page.
The feedback I got was they prefer
>  >>  >>  >>  >>  >>  > it on the project summary page
- so I submitted a patch for that as
>  >>  >>  >>  >>  >>  > well.
>  >>  >>  >>  >>  >>  >
>  >>  >>  >>  >>  >>  > Logging is an example of using
different source/target versions:
>  >>  >>  >>  >>  >>  >    http://commons.apache.org/logging/dependencies.html
>  >>  >>  >>  >>  >>  >    http://commons.apache.org/logging/project-summary.html
>  >>  >>  >>  >>  >>
>  >>  >>  >>  >>  >>  The part about "It has been built
using Java 1.5" in the dependencies
>  >>  >>  >>  >>  >>  report isn't accurate. 1.5 is the
version used (by you) to build and
>  >>  >>  >>  >>  >>  publish the site. I used 1.4 when
I did the logging release, so having
>  >>  >>  >>  >>  >>  anything else there is misleading.
I think that part should be removed.
>  >>  >>  >>  >>  >>  What extra value does it give to users,
providing it was correct?
>  >>  >>  >>  >>  >
>  >>  >>  >>  >>  > I could ask the same question of maven
and the Build-Jdk it puts in
>  >>  >>  >>  >>  > the manifest which is really mis-leading
since the source/target
>  >>  >>  >>  >>  > settings are missing - except here in commons.
>  >>  >>  >>  >>
>  >>  >>  >>  >>  The Build-Jdk in this case is the actual JDK
that was used to produce
>  >>  >>  >>  >>  the jar file. So it is correct. Having the source
and target in there is
>  >>  >>  >>  >>  much better though, for the reasons you mention
below.
>  >>  >>  >>  >>
>  >>  >>  >>  >>
>  >>  >>  >>  >>  > My answer though is its a warning - since
setting the target option
>  >>  >>  >>  >>  > doesn't actually guarantee it will run
on that version if API's from
>  >>  >>  >>  >>  > later java versions have been used.
>  >>  >>  >>  >>
>  >>  >>  >>  >>  But in this case it's not a warning. It the
JDK that was used to build
>  >>  >>  >>  >>  the *site* - not the jar file. That doesn't
tell a user anything.
>  >>  >>  >>  >
>  >>  >>  >>  > OK looks like we're mis-communicating here - what
exactly did you mean
>  >>  >>  >>  > by "providing it was correct" in your original question?
I took it to
>  >>  >>  >>  > mean "providing it was the value used to build the
jar for the
>  >>  >>  >>  > release".
>  >>  >>  >>
>  >>  >>  >>  Right, that's what I meant.
>  >>  >>  >
>  >>  >>  > OK well that was the question I was answering - not if it wasn't
>  >>  >>  > correct which I didn't disagree with.
>  >>  >>
>  >>  >>  Great, so do we agree on this summary?
>  >>  >
>  >>  > No not really - the source and target versions don't necessarily
>  >>  > relate to the release either. Take codec - Henri just bumped that up
>  >>  > to 1.4 - but the Codec 1.3 release was (I assume) JDK 1.3 compatible.
>  >>
>  >>  I was asking, because I wanted to fix and close MPIR-80.
>  >>
>  >>  We really do need properly versioned sites, for your patch to be used
>  >>  without the risk of misinformation.
>  >
>  > My patch makes no difference to what you term mis-information. For
>  > example, if someone adds/removes/changes version of a component's
>  > dependency AFTER a release and re-publishes the site then whats
>  > published no longer relates to the last release. The same is true for
>  > the whole site - e.g. adding a new feature and documenting it in a
>  > user guide and re-publishing.
>
>  Right, sorry for the confusion. The misinformation doesn't come from
>  your patch, but from the fact that it is possible to re-deploy a site,
>  thereby altering the content that was published at release time.
>
>
>  > For me though, having the site reflect whats currently in trunk and
>  > not the latest release is OK and I wouldn't term it mis-information -
>  > its the latest information.
>  >
>  > I did that patch originally because Sebb kept asking for the java
>  > version to be on the dependencies page. However given his recent
>  > comments it clearly doesn't meet his requirements. I think its quite
>  > nice and adding it does no harm, but I'm less interested in it now if
>  > you just want to close it as WONT FIX,
>
>  I'd like to keep the issue open, because I think it is adds value to the
>  reports. I will however postpone it until Maven has better support for
>  versioned sites.

Is that something thats in progress - or just on a wish list for the future?

Niall

>  > Niall
>  >
>  >>  > Niall
>  >>  >
>  >>  >>  - It is good to put the "source" and "target" version parameters
for the
>  >>  >>  compiler plugin in the reports.
>  >>  >>
>  >>  >>  - It is bad to put the JDK version in the reports, because it is
too
>  >>  >>  difficult to get the correct value for it.
>  >>  >

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