DBCP Connection.getDelegate () class cast problem

[Dong, Lily/Sloan-Kettering Institute]

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