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.est;

class Utils
{
    static AttrOrOID[] clone(AttrOrOID[] ids)
    {
        AttrOrOID[] tmp = new AttrOrOID[ids.length];

        System.arraycopy(ids, 0, tmp, 0, ids.length);

        return tmp;
    }
}