private static String javaCharset()

in commons-fileupload2-core/src/main/java/org/apache/commons/fileupload2/core/MimeUtils.java [252:261]

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

    private static String javaCharset(final String charset) {
        // nothing in, nothing out.
        if (charset == null) {
            return null;
        }
        final var mappedCharset = MIME2JAVA.get(charset.toLowerCase(Locale.ENGLISH));
        // if there is no mapping, then the original name is used. Many of the MIME character set
        // names map directly back into Java. The reverse isn't necessarily true.
        return mappedCharset == null ? charset : mappedCharset;
    }