private String getExtension()

in src/main/java/org/apache/maven/plugins/install/InstallFileMojo.java [393:401]

• 9 lines of code
• 4 McCabe index (conditional complexity)

    private String getExtension(final Path file) {
        String filename = file.getFileName().toString();
        int lastDot = filename.lastIndexOf('.');
        if (lastDot > 0 && lastDot < filename.length() - 1) {
            String ext = filename.substring(lastDot + 1);
            return filename.regionMatches(lastDot + 1 - TAR.length(), TAR, 0, TAR.length()) ? TAR + ext : ext;
        }
        return "";
    }