[xwiki-users] Velocity error messages in xwiki-1.1.1

-----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/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