Hi,
I am using Cocoon 2.0rc2 on Tomcat 4.0.1 on Solaris 2.8, and I am
running into some classloading problems. Here's what I am trying to do.
I've got an XSP page that uses some home-written classes to get some
data from DB2 using Castor as o/r mapping tool. Unfortunately, when
trying to execute that XSP, I am getting a ClassNotFoundException
telling me that it cannot find the jdbc driver class for DB2.
Well, I am a bit puzzled by this as all the 3rd party libraries I am
using reside in $CATALINA_HOME/common/lib (via symlinks) incl. amongst
others castor.jar (Castor's byte code) and db2java.zip (jdbc driver for
DB2).
The stack trace I get (see below for a fragment) seems to indicate that
the compiled XSP successfully finds ..
- some home-written libraries residing in the webapp's lib directory
- Castor's libaries residing in $CATALINA_HOME/common/lib
and does NOT find
- the JDBC driver for DB2 residing in $CATALINA_HOME/common/lib as well.
Any idea what's going wrong here ?
Werner
--- incl stack trace ---
java.lang.ClassNotFoundException: COM.ibm.db2.jdbc.app.DB2Driver
at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:1124)
at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:989)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
at
org.exolab.castor.jdo.engine.DatabaseRegistry.loadDatabase(DatabaseRegistry.java:275)
at org.exolab.castor.jdo.JDO.getDatabase(JDO.java:465)
at
com.msdw.futopt.infrastructure.persist.Persister.connectToDB(Persister.java:189)
at
com.msdw.futopt.infrastructure.persist.Persister.begin(Persister.java:225)
at
com.msdw.futopt.expiry.accounts.AccountNaturePersister.getAccountNatures(AccountNaturePersister.java:45)
at
com.msdw.futopt.expiry.accounts.AccountNatureManagerImplCastor.getAccountNatures(AccountNatureManagerImplCastor.java:84)
at
com.msdw.futopt.expiry.view.accounts.AccountNatureManagerDelegateLocal.getAccountNatures(AccountNatureManagerDelegateLocal.java:59)
at
com.msdw.futopt.expiry.view.accounts.AccountNatureXMLTransformer.<init>(AccountNatureXMLTransformer.java:67)
at
org.apache.cocoon.www.xml.view_accountNatures_xml.generate(view_accountNatures_xml.java:107)
at
org.apache.cocoon.generation.ServerPagesGenerator.generate(ServerPagesGenerator.java:200)
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