if (channel == null && props.containsKey(CONFIGURATION_FILE)) {
cfg = props.getProperty(CONFIGURATION_FILE);
Collection<URL> confs = null;
try {
confs = fileLookup.lookupFileLocations(cfg, configuration.classLoader());
} catch (IOException io) {
//ignore, we check confs later for various states
}
if (confs.isEmpty()) {
throw new CacheConfigurationException(CONFIGURATION_FILE