[jboss-user] [Datasource Configuration] - OracleValidConnectionChecker Unexpected error in pingDatabase

[Gunnar Bostrom]

Gunnar Bostrom [http://community.jboss.org/people/gunnarbos] created the discussion

"OracleValidConnectionChecker Unexpected error in pingDatabase"

To view the discussion, visit: http://community.jboss.org/message/599108#599108

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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
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