* Java version string.
 */
@NonNullApi
public class JavaVersionParser {

    public static int parseMajorVersion(String fullVersion) {
        int firstNonVersionCharIndex = findFirstNonVersionCharIndex(fullVersion);

        String[] versionStrings = fullVersion.substring(0, firstNonVersionCharIndex).split("\\.");
        List<Integer> versions = convertToNumber(fullVersion, versionStrings);