@Override
    public void apply(final Void nothing) throws GeneralSecurityException {
        throw new GeneralSecurityException("Aborting since DenyRevocationPolicy is in effect.");
    }
Policy application throws GeneralSecurityException to stop execution of
whatever process invoked application of this policy.

@param nothing SHOULD be null; ignored in all cases.
@throws GeneralSecurityException Thrown in all cases.
support/cas-server-support-x509-core/src/main/java/org/apereo/cas/adaptors/x509/authentication/revocation/policy/DenyRevocationPolicy.java