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Bug 313686 - eclipse-jee-galileo-SR2-win32 and wtp-S-3.2.0RC1 not Compatible
Summary: eclipse-jee-galileo-SR2-win32 and wtp-S-3.2.0RC1 not Compatible
Status: RESOLVED INVALID
Alias: None
Product: WTP Releng
Classification: WebTools
Component: releng (show other bugs)
Version: 3.10   Edit
Hardware: PC Windows 7
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: webtools.releng CLA
QA Contact: David Williams CLA
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-05-20 06:12 EDT by jhorgan CLA
Modified: 2018-06-29 15:14 EDT (History)
1 user (show)

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Description jhorgan CLA 2010-05-20 06:12:42 EDT 
Build Identifier: 20100218-1602

When I download and extract galileo SR2 and then apply wtp 3.2 RC1 it is not possible to create a new Dynamic Web Project any longer. The error reported is:

"The selected wizard could not be started.
  Plug-in "org.eclipse.jst.servlet.ui" was unable to instantiate class "org.eclipse.jst.servlet.ui.project.facet.WebProjectWizard".
  java.lang.NullPointerException"

However if I use a wtp-S-3.2.0M4 build then it works ok.

Reproducible: Always

Steps to Reproduce:
1.Install eclipse-jee-galileo-SR2-win32
2.Install wtp-S-3.2.0RC1 
3.Create a new Dynamic Web Project the following error is reported "The selected wizard could not be started.
  Plug-in "org.eclipse.jst.servlet.ui" was unable to instantiate class "org.eclipse.jst.servlet.ui.project.facet.WebProjectWizard".
  java.lang.NullPointerException"
Comment 1 Carl Anderson CLA 2010-05-20 14:26:33 EDT 
jhorgan,  simply put, why would you expect that our Helios release version of WTP (3.2) would be compatible with the Galileo base?  When you pull down eclipse-jee-galileo-SR2-win32, you get WTP 3.1.2, which is the Galileo SR2 release of WTP.

Moving to WTP Releng (but this will probably be closed as invalid).
Comment 2 David Williams CLA 2010-05-20 15:30:31 EDT 
actually, it is a valid report Sort of. 

We've said we don't officially support that kind of cross-release upgrade, but we wanted people to test it, since it should/could work, and we'd like to know if it does or not.

In the past, people never could due to Platform limitations. They believe all those limitations are now gone. 

So, probably worth looking at. There may be a "lower level" range tolerance that is invalid? 

But, as I said, we don't officially support so probably won't fix, so much as document the reasons why not. 

Thanks for the report.
Comment 3 David Williams CLA 2010-05-20 15:32:45 EDT 
Oh, wait ... how did you install RC1? 

The way to do it (if it would work at all) is to install/update from the Helios central repository. 

It definitely wouldn't work to install only WTP on top of galilleo Java EE IDE.
Comment 4 David Williams CLA 2010-05-20 15:34:59 EDT 
Try adding this to your list of available software sites, 

http://download.eclipse.org/releases/helios/

on a galileo version, and see if "update" works? (If you want to help test this unsupported migration path :)
Comment 5 David Williams CLA 2010-05-24 09:37:41 EDT 
I've heard other have success going through repository, so assuming you just unszipped some things