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| Re: Problems with JEE Update [message #269724 is a reply to message #269712] |
Tue, 24 March 2009 14:13  |
Eclipse User |
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Originally posted by: eclipse-news.rizzoweb.com
On 3/23/2009 4:04 PM, Thomas Mauch wrote:
> I encountered several issues when using Java EE Developer Tools and
> wanted to check whether there is an update available.
>
> I therefore selected Java EE Developer Tools in the Installed Software
> tab and got a message saying "The software items you selected may not be
> valid with your current installations. Do you want to open the wizard
> anyway to review the selections?"
>
> 1) So my first question is: What is this message saying to me?
> I downloaded and installed Eclipe 3.4 from the Eclipse download site and
> later installed the Web and Java EE Development from the Ganymede Update
> Site - so what can here be wrong?
>
> I then try to further on. Obviously there seems to be an update from
> 3.0.2 to 3.0.4 for the Java EE Developer Tools. But on completing the
> request, I suddenly get the error message: "Cannot find a solution
> satisfying the following requirements Match[requiredCapability:
> org.eclipse.equinox.p2.iu/org.eclipse.jdt.feature.jar/...]"
>
> 2) So my second question is: What is this message saying to me? And what
> should I do?
>
> I think Eclipse is a great product, but I have to admit that I
> unfortunately had a lot of unpleasant experiences with the Eclipse
> Update Manager, and hoped Equinox would bring some progress, but this
> seems not really to be the case...
p2 (the provisioning and update mechanism that was added in 3.4) has
lots of potential but also lots of problems. For 3.5 they have
completely re-worked the user interface and made the reporting of
problems (supposedly) better.
In my own opinion (and I don't speak for any Eclipse dev team), I think
releasing p2 was the single biggest technological mistake that the
Eclipse (platform) project has ever made. It was released very late into
the 3.4 milestone builds and it shows that immaturity.; the shear number
of bugs that have been reported against it is hard to ignore.
My point is that you are not alone in your struggles with p2; just be
thankful that you are not a plugin or RCP developer. ;-)
The good news is that lots of people have had input into the re-work for
3.5 and from my first glance it does indeed look to be improved.
> 3) And a final question: I was looking for a specific newsgroup for the
> EE development tools, but did not find one. Is there really none or it
> just not listed on http://www.eclipse.org/newsgroups/index_all.php? So I
> address my questions as proposed to this newsgroup...
The newsgroup you're looking for is eclipse.webtools - ask your question
there and be sure to post the full error messages (instead of the ...
you used above).
Hope this helps,
Eric
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