A little more info is needed:

Version of DBCP and exact tomcat versions?
Do you have a DBCP jar in the WEB-INF/lib directory of your application or only in tomcat/common/lib?
Do you create your own pool or use JNDI? (context configuration?)


-- Dirk

Dong, Lily/Sloan-Kettering Institute wrote:
Hi.

After updating tomcat to 5.0,  part of our system stopped working.  Looked
at the source code and found out the line

((PoolableConnection)conn_l).getDelegate()

caused java.lang.ClassCastException exception.  But the same code works fine
for Tomcat 4.1.

Any idea what went wrong?

Thanks,
Lily





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