+
+ /**
+ * Converts an array of Spring Security {@link GrantedAuthority} to a
+ * read-only list of strings, for portability and integration
+ */
+ public static List<String> authoritiesToStringList(
+ GrantedAuthority[] authorities) {
+ List<String> lst = new ArrayList<String>();
+ for (GrantedAuthority ga : authorities)
+ lst.add(ga.getAuthority());
+ return Collections.unmodifiableList(lst);
+ }