public static String getExtension()

in src/main/java/org/apache/tomcat/jakartaee/Util.java [38:45]

• 7 lines of code
• 2 McCabe index (conditional complexity)

    public static String getExtension(String filename) {
        // Extract the extension
        int lastPeriod = filename.lastIndexOf('.');
        if (lastPeriod == -1) {
            return "";
        }
        return filename.substring(lastPeriod + 1).toLowerCase(Locale.ENGLISH);
    }