public void checkNonNegative(String countType, int actualCount)
			throws InvalidDataTypeException {
		if (actualCount < 0) {
			throw new InvalidDataTypeException(getName() + " data type at " + getAddress() +
				" has a " + countType + " count of " + actualCount + ", which seems incorrect.");
		}
	}
Determines if the indicated actual entry count value is a non-negative count
for the indicated count type.
@param countType name indicating the type of count being checked.
@param actualCount the actual number of entries in a data type map.
@throws InvalidDataTypeException if the count is negative.
Ghidra/Features/MicrosoftCodeAnalyzer/src/main/java/ghidra/app/cmd/data/AbstractCreateDataTypeModel.java