private void generateErrorMsg(StringBuilder errorMsg, String signature,
			List<Integer> uncoveredValidECs, List<Integer> uncoveredInvalidECs,
			List<Integer> uncoveredBoundaries) {
		
		if (CollectionUtils.isNotEmpty(uncoveredValidECs)
				|| CollectionUtils.isNotEmpty(uncoveredInvalidECs)
				|| CollectionUtils.isNotEmpty(uncoveredBoundaries)) {
			errorMsg.append(">>> Uncovered");
			errorMsg.append("\nmethodSignature: " + signature);
			if (!uncoveredValidECs.isEmpty()) {
				errorMsg.append("\nvalidECs: " + uncoveredValidECs);
			}
			if (!uncoveredInvalidECs.isEmpty()) {
				errorMsg.append("\ninvalidECs: " + uncoveredInvalidECs);
			}
			if (!uncoveredBoundaries.isEmpty()) {
				errorMsg.append("\nboundaries: " + uncoveredBoundaries);
			}
		}
	}