Steps to reproduce,

- Generate a KeyPair for RSASSA-PSS.
- Generate another using any of following way,
KeyFactory kf = KeyFactory.getInstance(ALGO, PROVIDER);
        switch (type) {
            case PUBLIC_KEY:
                return new Key[]{
                    kf.generatePublic(kf.getKeySpec(key, RSAPublicKeySpec.class)),
                    kf.generatePublic(new X509EncodedKeySpec(key.getEncoded())),
                    kf.generatePublic(new RSAPublicKeySpec(
                    ((RSAPublicKey) key).getModulus(),
                    ((RSAPublicKey) key).getPublicExponent())),
                    kf.translateKey(key)
                };
            case PRIVATE_KEY:
                return new Key[]{
                    kf.generatePrivate(kf.getKeySpec(key, RSAPrivateKeySpec.class)),
                    kf.generatePrivate(new PKCS8EncodedKeySpec(key.getEncoded())),
                    kf.generatePrivate(new RSAPrivateKeySpec(((RSAPrivateKey) key)
                    .getModulus(),
                    ((RSAPrivateKey) key).getPrivateExponent())),
                    kf.translateKey(key)
                };
        }
Compare the original key with the generated one from above step,
- Keys equals() will fail
- Keys hashCode() will not same too. (In fact i see it's -ve, which may be because of overflow)
- Keys getEncoded() will generate different binaries too.

It is also same when the keys are serialized Or generated from any other source like OpenSSL.