+ "the connection is null");
}
try {
Class validationClass = Thread.currentThread().getContextClassLoader().loadClass(validationClassName);
ConnectionValidation valClass = (ConnectionValidation) validationClass.newInstance();
isValid = valClass.isConnectionValid(con);
} catch (Exception e) {
_logger.log(Level.INFO, "jdbc.exc_custom_validation", validationClassName);
throw new ResourceException(e);
}
if (!isValid) {