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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_newest_possible_languagetool_version():
 """Return newest compatible version. True """

    java_path = find_executable('java')
    if not java_path:
        # Just ignore this and assume an old version of Java. It might not be
        # found because of a PATHEXT-related issue
        # (https://bugs.python.org/issue2200).
        return JAVA_6_COMPATIBLE_VERSION

    output = subprocess.check_output([java_path, '-version'],
                                     stderr=subprocess.STDOUT,
                                     universal_newlines=True)
    # https://www.oracle.com/technetwork/java/javase/versioning-naming-139433.html
    match = re.search(
        r'^java version "(?P<major1>\d+)\.(?P<major2>\d+)\.[^"]+"$',
        output,
        re.MULTILINE)
    if not match:
        raise SystemExit(
            'Could not parse Java version from """{}""".'.format(output))

    java_version = (int(match.group('major1')), int(match.group('major2')))
    if java_version >= (1, 7):
        return LATEST_VERSION
    elif java_version >= (1, 6):
        warn('grammar-check would be able to use a newer version of '
             'LanguageTool if you had Java 7 or newer installed')
        return JAVA_6_COMPATIBLE_VERSION
    else:
        raise SystemExit(
            'You need at least Java 6 to use grammar-check')