public static Long getLongProperty(Configuration config, String key) throws DeployerConfigurationException {
        return getLongProperty(config, key, null);
    }
public static Long getLongProperty ( Configuration config , String key ) throws DeployerConfigurationException { return getLongProperty ( config , key , null ) ; }
Returns the specified Long property from the configuration

@param config the configuration
@param key    the key of the property
@return the Long value of the property, or null if not found
@throws DeployerConfigurationException if an error occurred