I needed to re-create an ArrayListMultiMap from some real-world data to test something locally, but I only had access remotely via the toString method

GuavaArrayListMultiMapFromToString.java

class GuavaArrayListMultiMapFromToString {
	static ArrayListMultimap<String, String> toArrayListMultimap(final String toString)
	{
		final ArrayListMultimap<String, String> map = ArrayListMultimap.create();
		final Pattern pattern = Pattern.compile("\\w+=\\[.+?\\]");
		final Matcher matcher = pattern.matcher(data);
		
		while(matcher.find())
		{
			final String group = matcher.group();
			final String[] split = group.split("=", 2);
			final String key = split[0];
			final String valueStr = split[1].replaceAll("[\\[|\\]]", "");
			final List<String> values = Splitter.on(",").trimResults().splitToList(valueStr);
			map.putAll(key, values);
		}

		return map;
	}
}