I've written some classes that employ the iBatis framework for data access. All patterns used are identical to the iBatis JPetStore example (DaoManager, SqlMaps, a "service" class which abstracts all this, etc.)
These classes work great when accessed from a Tomcat web application. But I ran into problems using these classes in a custom Realm for Tomcat. These are the errors I'm getting when the class loader initializes everything on Tomcat startup: Caused by: java.lang.RuntimeException: Could not initialize BrokerDaoConfig. Cause: com.ibatis.dao.client.DaoException: Error while configuring DaoManager. Cause: com.ibatis.sqlmap.client.SqlMapException: There was an error while building the SqlMap instance. --- The error occurred in the SQL Map Configuration file. --- The error occurred while configuring the data source. --- Check the data source type or class. --- Cause: com.ibatis.sqlmap.client.SqlMapException: Error initializing DataSource. Could not instantiate DataSourceFactory. Cause: java.lang.ClassCastException Can anyone shed some light on the ClassCastException? I Googled but found no references to this exception in this context. As I mentioned, my classes work when all iBatis (and related) jars are under a webapp's WEB-INF/lib directory. But in this case, since I'm trying to use the classes in a custom Realm implementation, I've placed all the jars under server/lib directory - that is the only difference between a working and non-working scenario. Thanks for all your help, -Sasha Borodin
