Cleaning Strings to tokens with stemming and url removal

gistfile1.txt

	public Set<String> parseRawString(String rawString, SnowballStemmer stemmer){
		Set<String> answer = new HashSet<String>();
		String[] firstSplit = rawString.split("[\\t\\n\\r]");
		List<String> rawSplit = new ArrayList<String>();
		for (String s: firstSplit) try{
			URL url = new URL(s);
		} catch (MalformedURLException e){
			rawSplit.addAll(Arrays.asList(s.split("[\\p{P}]")));
		}
		for (String s: rawSplit){
			stemmer.setCurrent(s.toLowerCase());
			stemmer.stem();
			String addition = stemmer.getCurrent();
			if (addition.length()>1){
				answer.add(addition);
			}
		}
		return answer;
	}