Hi Andreas,

Thanks a lot for the praise. I'm really happy that you got the upgrade  
working since it's not always that easy to move from 0.9 to 1.1.

These velocity warnings are not important. We've also fixed them in  
1.2M2. We've even added automated tests so that they don't appear again.

Thanks
-Vincent

On Oct 30, 2007, at 9:00 PM, Andreas Haumer wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi!
>
> In the past days I sucessfully upgraded our XWiki installation
> from 0.9.840 to 1.1.1. We use jboss-4.2.1.GA and postgresql-8.2.5
> and everything went quite well!
>
> In the process I only had to remove the servlet-api-2.3.jar from
> WEB-INF/lib/ as it is incompatible with the one JBoss AS already
> has. I also added lucene-analyzers-2.0.0.jar as I want to use
> Lucene's german analyzer.
>
> Porting the database for use with XWiki-1.1.1 also went well using
> the "schema_pre.sql" and "schema_post.sql" scripts Rudolf Van der
> Leeden posted to this list a few months ago (many thanks, Rudolf!)
>
> We now have our wiki with about 2000 pages on version 1.1.1
> and are very happy with the results. XWiki-1.1.1 is really
> amazing and the improvements relative to 0.9.840 are great!
> Excellent work!
>
> There is one thing I still haven't solved, though: The application
> seems to work fine, but in the logfiles I find lots of the following
> messages:
>
> [...]
> 19:38:15,510 INFO  [STDOUT] 19:38:15,504 ERROR http-0.0.0.0-8080-2 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/Main/ 
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. Main.WebHome [line 6, column 14]
> 19:38:15,541 INFO  [STDOUT] 19:38:15,540 ERROR http-0.0.0.0-8080-2 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/Main/ 
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. Main.WebHome [line 6, column 14]
> 19:38:15,636 INFO  [STDOUT] 19:38:15,634 ERROR http-0.0.0.0-8080-2 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/Main/ 
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. Main.WebHome [line 6, column 14]
> 19:38:15,714 INFO  [STDOUT] 19:38:15,712 ERROR http-0.0.0.0-8080-2 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/Main/ 
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. Main.WebHome [line 6, column 14]
> [...]
>
> Basically, access to every page in the wiki gives at least one of
> those messages: WebHome pages usually give 4 of them, others only 1:
>
> [...]
> 20:52:10,877 INFO  [STDOUT] 20:52:10,877 ERROR http-0.0.0.0-8080-4 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/KnowledgeBase/ 
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. KnowledgeBase.WebHome [line 6,  
> column 14]
> 20:52:10,905 INFO  [STDOUT] 20:52:10,903 ERROR http-0.0.0.0-8080-4 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/KnowledgeBase/ 
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. KnowledgeBase.WebHome [line 6,  
> column 14]
> 20:52:10,906 INFO  [STDOUT] 20:52:10,906 ERROR http-0.0.0.0-8080-4 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/KnowledgeBase/ 
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. KnowledgeBase.WebHome [line 6,  
> column 14]
> 20:52:10,910 INFO  [STDOUT] 20:52:10,908 ERROR http-0.0.0.0-8080-4 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/KnowledgeBase/ 
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. KnowledgeBase.WebHome [line 6,  
> column 14]
> 20:52:22,023 INFO  [STDOUT] 20:52:22,021 ERROR http-0.0.0.0-8080-4 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/KnowledgeBase/Systemadministration
>  
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. KnowledgeBase.Systemadministration  
> [line 6, column 14]
> 20:52:36,162 INFO  [STDOUT] 20:52:36,161 ERROR http-0.0.0.0-8080-4 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/KnowledgeBase/HOWTOS 
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. KnowledgeBase.HOWTOS [line 6,  
> column 14]
> 20:53:03,694 INFO  [STDOUT] 20:53:03,692 ERROR http-0.0.0.0-8080-4 
> http://test5.intern.xss.co.at:8080/xwiki/bin/view/KnowledgeBase/VariousSambaHOWTOs
>  
>  SimpleLog4JLogSystem:logVelocityMessage:154 - Left side ($first) of  
> '==' operation has null value. If a reference, it may not be in the  
> context. Operation not possible. KnowledgeBase.VariousSambaHOWTOs  
> [line 6, column 14]
> [...]
>
> Does anyone know what might cause these errors?
> What or where does "line 6, column 14" refer to?
> Should I worry about these errors?
> Any ideas how to solve these errors?
>
> Many thanks in advance!
>
> Regards,
>
> - - andreas
>
> - --
> Andreas Haumer                     | mailto:[EMAIL PROTECTED]
> *x Software + Systeme              | http://www.xss.co.at/
> Karmarschgasse 51/2/20             | Tel: +43-1-6060114-0
> A-1100 Vienna, Austria             | Fax: +43-1-6060114-71
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