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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/Systemadmin…
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/VariousSamb…
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:andreas@xss.co.at
*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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