code: @Override
  	public final boolean configChanged() {
  		int currentConfigHash = doReadConfig().hashCode();
  		boolean configChanged = this.propsHashCode != currentConfigHash;
  
  		if (configChanged && LOGGER.isDebugEnabled()){
  			LOGGER.debug("Changes in Jawr configuration properties file detected.");
  		}
  		
  		this.propsHashCode = currentConfigHash;
  
  		return configChanged;
  	}
docs: /*
  (non-Javadoc)
  
  @see net.jawr.web.resource.bundle.factory.util.ConfigPropertiesSource#
  configChanged()