Hi,
I installed xwiki on WebSphere/Oracle environment.

But search function does not work properly.. It just responds as "Error 500: ".
In the log file I saw the following exceptions (I didn't paste all of
the stack trace)
It seems Lucene does not work, and there is also a datatypes related
ORACLE problem..  I'm not sure whether they are related..
Any idea?

thanks,
Tamer

PS:
   XWiki version is : 1.4.1.10194


2008-08-01 21:13:51,373 [Lucene index rebuilder thread] [Lucene Index
Rebuilder] ERROR lucene.IndexRebuilder           - Error in lucene
rebuild thread
java.lang.NullPointerException
        at 
com.ibm.ws.webcontainer.srt.SRTServletRequest$SRTServletRequestHelper.access$1600(SRTServletRequest.java:2232)
        at 
com.ibm.ws.webcontainer.srt.SRTServletRequest.getQueryString(SRTServletRequest.java:1207)
        at 
com.xpn.xwiki.web.XWikiServletRequest.getQueryString(XWikiServletRequest.java:193)
        at 
com.xpn.xwiki.render.DefaultXWikiRenderingEngine.getKey(DefaultXWikiRenderingEngine.java:335)
        ....
2008-08-01 21:14:18,646 [Lucene index updating thread] [Lucene Index
Updater] ERROR lucene.ObjectData               - error extracting
fulltext for do
cument xwiki:Main.AllDocs.default.objects
java.lang.ClassCastException: com.xpn.xwiki.objects.StringProperty
incompatible with com.xpn.xwiki.objects.ListProperty
        at 
com.xpn.xwiki.objects.BaseCollection.getListValue(BaseCollection.java:327)
        .....

2008-08-01 21:13:50,795 [http://wiki.test/bin/view/Main/] [Default :
0] ERROR impl.StatsUtil                  - Failed to search visit
object in t
he database from cookie
com.xpn.xwiki.XWikiException: Error number 3223 in 3: Exception while
searching documents with sql from VisitStats as obj where obj.cookie=?
and obj.e
ndDate > ? order by obj.endDate desc
Wrapped Exception: could not execute query
        at 
com.xpn.xwiki.store.XWikiHibernateStore.search(XWikiHibernateStore.java:2121)
        at 
com.xpn.xwiki.store.XWikiHibernateStore.search(XWikiHibernateStore.java:2056)
        .....
Wrapped Exception:

java.sql.SQLException: ORA-00932: inconsistent datatypes: expected - got CLOB

        at 
oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)
        at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:745)
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