in plugin-core/plugin/src/main/groovy/grails/plugin/springsecurity/SpringSecurityUtils.groovy [472:489]
private static boolean filterIsExcluded(List<Map<String, ?>> chainMap, String pattern, String filterName) {
for (Map<String, ?> entry in chainMap) {
if (entry.pattern != pattern) {
continue
}
String filters = entry.filters
for (item in filters.split(',')) {
item = item.toString().trim()
if (item.startsWith('-') && item.substring(1) == filterName) {
return true
}
}
return false
}
return false
}