String[] read() {
			try {
				String line = null;
				do {
					line = _reader.readLine();
				} while (line != null &&
					(line.trim().startsWith("#") || line.trim().isEmpty()));

				return line != null ? line.split(",") : null;
			} catch (IOException e) {
				exception.ignore(UncheckedIOException.class, this::close);
				throw new UncheckedIOException(e);
			}
		}
The reader class used for reading the test data.
jenetics/src/test/java/io/jenetics/util/TestData.java