How to use

ECKey$MissingPrivateKeyException

in

io.yggdrash.common.crypto

throw new MissingPrivateKeyException();

/**
 * Gets the private key in the form of an integer field element. The public key is derived by performing EC
 * point addition this number of times (i.e. point multiplying).
 *
 * @return -
 * @throws java.lang.IllegalStateException if the private key bytes are not available.
 */
public BigInteger getPrivKey() {
  if (privKey == null) {
    throw new MissingPrivateKeyException();
  } else if (privKey instanceof BCECPrivateKey) {
    return ((BCECPrivateKey) privKey).getD();
  } else {
    throw new MissingPrivateKeyException();
  }
}