Remove junk characters before xml in an InputStream

gistfile1.java

int bomCheck = -1;
int stopper = 0;
while ((bomCheck = is.read()) != -1 && stopper <= 5000) {
	stopper++;
	String snippet = "";
	//60 == '<' character
	if (bomCheck == 60) {
		for (int i = 0; i < 4; i++) {
			byte[] chunk = new byte[1];
			is.read(chunk);
			snippet += new String(chunk);
		}
		if (snippet.equals("?xml")) {
			//it's all good, add xml tag back and start parsing
			String start = "<" + snippet;
			List<InputStream> streams = Arrays.asList(
				    new ByteArrayInputStream(start.getBytes()),
				    is);
			is = new SequenceInputStream(Collections.enumeration(streams));
			break;
		} else {
			//keep searching...
			List<InputStream> streams = Arrays.asList(
				    new ByteArrayInputStream(snippet.getBytes()),
				    is);
			is = new SequenceInputStream(Collections.enumeration(streams));
		}
	}
}