1 Reply Latest reply on Apr 14, 2011 1:40 AM by Gunnar Bostrom

    OracleValidConnectionChecker Unexpected error in pingDatabase

    Gunnar Bostrom Newbie

      Hi,

      We use JBoss 5.1.0.GA and java 1.6 and run in to trouble with org.jboss.resource.adapter.jdbc.vendor.OracleValidConnectionChecker.

      From the log:

       

      08:23:24,519 WARN  [org.jboss.resource.adapter.jdbc.vendor.OracleValidConnectionChecker] (http-0.0.0.0-8080-1) Unexpected error in pingDatabase

      java.lang.IllegalArgumentException: object is not an instance of declaring class

       

      This started to happen when I added

      <!-- sql to call on an existing pooled connection when it is obtained from                               pool - the OracleValidConnectionChecker is prefered -->

                          <check-valid-connection-sql>select 1 from dual</check-valid-connection-sql>

                          <valid-connection-checker-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleValidConnectionChecker

                          </valid-connection-checker-class-name>

       

      to our oracle-ds.xml because we must check if the connection in the pool is valid.

       

      The log says warning, but is the check done and a new connection created if the check failed?

       

      Regards

      Gunnar