protected void setParts(String wildcardString, boolean caseSensitive) {
        wildcardString = StringUtils.clean(wildcardString);
        if(wildcardString != null && !wildcardString.isEmpty()) {
            List parts = CollectionUtils.asList(wildcardString.split(":"));
            this.parts = new ArrayList();
            Iterator i$ = parts.iterator();

            while(i$.hasNext()) {
                String part = (String)i$.next();
                Set subparts = CollectionUtils.asSet(part.split(","));
                if(!caseSensitive) {
                    subparts = this.lowercase(subparts);
                }

                if(subparts.isEmpty()) {
                    throw new IllegalArgumentException("Wildcard string cannot contain parts with only dividers. Make sure permission strings are properly formatted.");
                }

                this.parts.add(subparts);
            }

            if(this.parts.isEmpty()) {
                throw new IllegalArgumentException("Wildcard string cannot contain only dividers. Make sure permission strings are properly formatted.");
            }
        } else {
            throw new IllegalArgumentException("Wildcard string cannot be null or empty. Make sure permission strings are properly formatted.");
        }
    }