in src/main/java/org/apache/sling/scripting/sightly/impl/engine/extension/URIManipulationFilterExtension.java [150:159]
private String getOption(String key, Map<String, Object> options, String defaultValue, boolean useDefaultIfEmpty) {
String value = (String) options.get(key);
if (StringUtils.isNotEmpty(value)) {
return value;
}
if (options.containsKey(key) && !useDefaultIfEmpty) {
return null;
}
return defaultValue;
}