}

    @Override
    public boolean isChallengeComplete() {
        return false;
    }

    @Override
    public boolean isResponseReady(final HttpHost host, final CredentialsProvider credentialsProvider, final HttpContext context)
            throws AuthenticationException {
        return false;
    }

    @Override
    public Principal getPrincipal() {
        return null;
    }

    }

    /**
     * Sets the credentials provider for authentication.
     *
     * @param credentialsProvider The credentials provider
     */
    public void setCredentialsProvider(final CredentialsProvider credentialsProvider) {
        this.credentialsProvider = credentialsProvider;
    }

    /**
     * Sets the authentication cache.
     *

    }

    /**
     * Sets the credentials provider for authentication.
     *
     * @param credentialsProvider The credentials provider
     */
    public void setCredentialsProvider(final CredentialsStore credentialsProvider) {
        this.credentialsProvider = credentialsProvider;
    }

    /**
     * Sets the authentication cache.
     *

        this.bucket = bucket;

        final AwsBasicCredentials credentials = AwsBasicCredentials.create(accessKey, secretKey);
        final S3ClientBuilder builder =
                S3Client.builder().credentialsProvider(StaticCredentialsProvider.create(credentials)).region(Region.of(getRegion(region)));

        // For non-AWS endpoints (MinIO, etc.), set custom endpoint with path-style access
        if (StringUtil.isNotBlank(endpoint)) {