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Re: [cross-project-issues-dev] Lucene version problem for DTP

As an aside, I don't know that it's really kosher to build an Indigo project against 3.6.1.  I understand the need for stability but it's not like are are doing wild and crazy things in 3.7 :-)
The purpose of the coordinated release is to make available a set of compatible components at the end of June. This allows our consumers to have a predictable release schedule.    The Indigo consumers will use 3.7.x bundles, but DTP will only be tested against 3.6.x.    This increases the risk for bugs after a release.  

Kim



From:        Chris Goldthorpe <cgold@xxxxxxxxxx>
To:        Cross project issues <cross-project-issues-dev@xxxxxxxxxxx>
Date:        01/13/2011 04:32 PM
Subject:        Re: [cross-project-issues-dev] Lucene version problem for DTP
Sent by:        cross-project-issues-dev-bounces@xxxxxxxxxxx




I can give some background

https://bugs.eclipse.org/bugs/show_bug.cgi?id=248986 is the bug that tracked upgrading to Lucene 2.9
Before the upgrade to 2.9.1  happened there was a lot of discussion about whether the API changes between Lucene 1.x and 2.x would impact clients and we ended up convincing ourselves that clients would be able to adapt to the change with little or no disruption.On a related topic a Bugzilla was just filed -  
https://bugs.eclipse.org/bugs/show_bug.cgi?id=334305 requesting that we move to Lucene 3.x.

One thing I had not anticipated was that splitting the Lucene class files  into three bundles rather than two would cause any issues. Lucene 2.9.1 was already in the Orbit repository before the SDK switched to using it for the help system so I'm not aware of why it went from two bundles to three.


Have you tried creating an optional dependency to  org.apache.lucene.core?


Chris




From:        
Brian Payton/Santa Teresa/IBM@IBMUS
To:        
Cross project issues <cross-project-issues-dev@xxxxxxxxxxx>
Date:        
01/13/2011 12:33 PM
Subject:        
[cross-project-issues-dev] Lucene version problem for DTP
Sent by:        
cross-project-issues-dev-bounces@xxxxxxxxxxx




Greetings Eclipse project leads,


We (the DTP project PMC) would like to call on the collective wisdom of the Eclipse projects.


DTP is having a runtime problem with the versions of Lucene (org.apache.lucene) that are shipped with Eclipse.  Eclipse versions up to 3.6 included Lucene 1.9.1.  In Eclipse 3.7, however, the Lucene plugin versions jumped to version 2.9.1.  As part of the version change, the main Lucene plugin (org.apache.lucene) was restructured so that its content moved into a new plugin named org.apache.lucene.core.


DTP makes use of Lucene services to implement one of its views, the SQL Results view.  When run against Eclipse 3.7, the SQL Results view does not open because the required Lucene classes cannot be found.


We build both of the current versions of  DTP (v1.8.2  for the Helios release train and v1.9 the Indigo release train), against Eclipse 3.6.1.  We prefer building on an earlier, known stable Eclipse release to provide flexibility for our adopters, who sometimes want to get the latest version of our project without upgrading their Eclipse base.  And up to now this hasn't been a problem; we have been able to run our DTP builds on "the next version" of Eclipse, because the binary compatibility has been good.  With Lucene in Eclipse 3.7 however, this appears to be no longer the case.


We would appreciate suggestions on how to address this.  Has any other project had to deal with this issue, or a similar one?  


Regards,

Brian Payton

DTP PMC Lead
Data Tools Development
IBM Silicon Valley Laboratory

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