this.userAgent = userAgent;
    }

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

    /**
     * Sets the authentication cache.
     * @param authCache 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)) {

            // Set endpoint override (for MinIO/LocalStack compatibility)
            builder.endpointOverride(URI.create(endpoint));

            // Set credentials
            builder.credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(accessKey, secretKey)));

            // Set region
            builder.region(Region.of(region));