http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
package org.bouncycastle.asn1.cryptlib;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;

public class CryptlibObjectIdentifiers
{
    public static final ASN1ObjectIdentifier cryptlib = new ASN1ObjectIdentifier("1.3.6.1.4.1.3029");

    public static final ASN1ObjectIdentifier ecc = cryptlib.branch("1").branch("5");

    public static final ASN1ObjectIdentifier curvey25519 = ecc.branch("1");
}