2014-03-31 01:07:00,503 WARN [org.jboss.resource.adapter.jdbc.vendor.CustomOracleValidConnectionChecker] Unexpected error in pingDatabase
java.lang.IllegalArgumentException: java.lang.ClassCastException@62db88a8
at sun.reflect.GeneratedMethodAccessor230.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.resource.adapter.jdbc.vendor.OneMinOracleValidConnectionChecker.isValidConnection(OneMinOracleValidConnectionChecker.java:39)