http://www.bouncycastle.org/java.html: The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
  • The Legion of the Bouncy Castle Inc. 
package org.bouncycastle.tsp.cms;

import org.bouncycastle.tsp.TimeStampToken;

public class ImprintDigestInvalidException
    extends Exception
{
    private TimeStampToken token;

    public ImprintDigestInvalidException(String message, TimeStampToken token)
    {
        super(message);

        this.token = token;
    }

    public TimeStampToken getTimeStampToken()
    {
        return token;
    }
}