return instanceHash;
if (instanceHash != null) return instanceHash; MessageDigest digest = null; try { digest = MessageDigest.getInstance("MD5"); } catch (Exception e2) {  } instanceHash = getInstanceKey(); if (digest != null) { byte [] data = digest.digest(instanceHash.getBytes()); String tmp = new BigInteger(1,data).toString(16); instanceHash = tmp; } return instanceHash;
	public String getInstanceHash() {		return instanceHash;	}