Use DeleteBucketPolicy with an AWS SDK

Delete a bucket policy for a directory bucket.

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.DeleteBucketPolicyRequest;
import software.amazon.awssdk.services.s3.model.S3Exception;

import static com.example.s3.util.S3DirectoryBucketUtils.createDirectoryBucket;
import static com.example.s3.util.S3DirectoryBucketUtils.createS3Client;
import static com.example.s3.util.S3DirectoryBucketUtils.deleteDirectoryBucket;
import static com.example.s3.util.S3DirectoryBucketUtils.getAwsAccountId;
import static com.example.s3.util.S3DirectoryBucketUtils.putDirectoryBucketPolicy;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


    /**
     * Deletes the bucket policy for the specified S3 directory bucket.
     *
     * @param s3Client   The S3 client used to interact with S3
     * @param bucketName The name of the directory bucket
     */
    public static void deleteDirectoryBucketPolicy(S3Client s3Client, String bucketName) {
        logger.info("Deleting policy for bucket: {}", bucketName);

        try {
            // Create a DeleteBucketPolicyRequest
            DeleteBucketPolicyRequest deletePolicyReq = DeleteBucketPolicyRequest.builder()
                    .bucket(bucketName)
                    .build();

            // Delete the bucket policy
            s3Client.deleteBucketPolicy(deletePolicyReq);
            logger.info("Successfully deleted bucket policy");

        } catch (S3Exception e) {
            logger.error("Failed to delete bucket policy: {} - Error code: {}", e.awsErrorDetails().errorMessage(),
                    e.awsErrorDetails().errorCode(), e);
            throw e;
        }
    }