@Override
	public int compareTo(SourceFile sourceFile) {
		int comp = path.compareTo(sourceFile.path);
		if (comp != 0) {
			return comp;
		}
		comp = idType.compareTo(sourceFile.idType);
		if (comp != 0) {
			return comp;
		}
		return Arrays.compare(identifier, sourceFile.identifier);
	}
Returns (a copy of) the identifier
@return identifier
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/sourcemap/SourceFile.java