@Override
    protected byte[] engineGetEncoded(String format) throws IOException {
        if ((format == null) || format.equals("ASN.1")) {
            return engineGetEncoded();
        }
        throw new IOException("Unsupported format: " + format);
    }
Returns a non-cloned version of the IV.
common/src/main/java/org/conscrypt/GCMParameters.java