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 1.7. 
package org.bouncycastle.ocsp;

public class OCSPException
    extends Exception
{
    Exception   e;

    public OCSPException(
        String name)
    {
        super(name);
    }

    public OCSPException(
        String name,
        Exception e)
    {
        super(name);

        this.e = e;
    }

    public Exception getUnderlyingException()
    {
        return e;
    }

    public Throwable getCause()
    {
        return e;
    }
}