assertEquals("AAhRON2r9cqXX1hg-RoI6R1tX5p2rUAYdmpHZoC1XNM56KtscrX6zb" +
"KipQrCW9CGZH3T4ubpnoTKLDYJ_fF3_rJt", jwk.getD().toString());
// Convert to Java EC key object
ECPublicKey ecPublicKey = jwk.toECPublicKey();
ECPrivateKey ecPrivateKey = jwk.toECPrivateKey();
jwk = new ECKey.Builder(ECKey.Curve.P_521, ecPublicKey).privateKey(ecPrivateKey).build();
assertEquals("AHKZLLOsCOzz5cY97ewNUajB957y-C-U88c3v13nmGZx6sYl_oJXu9" +