throws Exception {
JWTClaimsSet claimsSet = new JWTClaimsSet();
claimsSet.setIssuer("https://c2id.com");
SignedJWT jwt = new SignedJWT(new JWSHeader(JWSAlgorithm.HS256), claimsSet);
jwt.sign(new MACSigner("abcdef1234567890"));
OIDCClientMetadata metadata = new OIDCClientMetadata();
metadata.setRedirectionURI(new URI("https://client.com/in"));
metadata.setName("Test App");