Grassi Fabio wrote:
Where do you put you iBatis jar files? In common/lib, server/lib or
WEB-INF/lib?
WEB-INF/lib in the .war file - so iBatis is not shared. Some of our
applications run with old iBatis and some with the new version.
Thanks,
Baldur
> -----Messaggio originale-----
> Da: Baldur Norddahl [mailto:[EMAIL PROTECTED]]
> Inviato: giovedì 7 aprile 2005 15:36
> A: [email protected]
> Oggetto: class cast exception
>
>
> Hi,
>
> In some of our projects we are haunted by a strange class cast
> exception. I suspect it is a class loader issue. Just after
> restarting
> the application server everything works fine, and it may continue
to
> work fine for hours or days. Until suddenly it stops working
> with this
> kind of errors:
>
> 2005-04-07 14:39:15,564 [TP-Processor112] ERROR
> com.ibatis.db.sqlmap.MappedStatement - Error executing
> 'getGameIdByContentId' in 'com/xentive/shopdb/webshop.xml'. Check
the
> Parameter Map (or inline parameters). Check the 'value' property.
> Cause: java.lang.ClassCastException: java.lang.String
> java.lang.ClassCastException: java.lang.String
> at
> com.ibatis.db.sqlmap.MappedStatement.runQueryForObject(Unknown
Source)
> at
> com.ibatis.db.sqlmap.MappedStatement.executeQueryForObject(Unk
> nown Source)
> at
> com.ibatis.db.sqlmap.MappedStatement.executeQueryForObject(Unk
> nown Source)
> at
> com.ibatis.db.sqlmap.SqlMap.executeQueryForObject(Unknown Source)
> at
> com.xentive.shopdb.OrderHandler.doGet(OrderHandler.java:123)
>
>
> The statement looks like this:
>
>
> result-class="java.lang.String">
> select game_id as value from webshop.game where id=#value#
>
>
> And the code that invokes it:
>
> String gameId =
> SqlConfig.webshop.executeQueryForObject("getGameIdByContentId"
> ,contentid.toString()).toString();
>
> Restarting the application server always fixes the problem
> for a while.
>
> Usually we can "fix" the problem applications by converting
> everything
> to strings. That did not work in this case though.
>
> We are using:
>
> postgresql 7.4.3
> tomcat 5.0.27
> jdk 1.5.0
>
> The datasource is a global shared pool:
>
>
>
factory-class="com.ibatis.db.sqlmap.datasource.JndiDataSourceFactory"
> name="webshop" default="true">
>
> value="java:comp/env/jdbc/db"/>
>
>
> I hope somebody got an idea for me how I can go about fixing this.
>
> Thanks,
>
> Baldur
>
>
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