The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256. #19

public static void main(String[] args) throws IOException {
	@SuppressWarnings("deprecation")
	AmazonS3 s3client = new AmazonS3Client(new ProfileCredentialsProvider());

	try {
		System.out.println("Generating pre-signed URL.");
		java.util.Date expiration = new java.util.Date();
		long milliSeconds = expiration.getTime();
		milliSeconds += 1000 * 60 * 60; // Add 1 hour.
		expiration.setTime(milliSeconds);

		GeneratePresignedUrlRequest generatePresignedUrlRequest = 
			    new GeneratePresignedUrlRequest(bucketName, objectKey);
		generatePresignedUrlRequest.setMethod(HttpMethod.GET); 
		generatePresignedUrlRequest.setExpiration(expiration);

		URL url = s3client.generatePresignedUrl(generatePresignedUrlRequest); 

		System.out.println("Pre-Signed URL = " + url.toString());
	} catch (AmazonServiceException exception) {
		System.out.println("Caught an AmazonServiceException, " +
				"which means your request made it " +
				"to Amazon S3, but was rejected with an error response " +
		"for some reason.");
		System.out.println("Error Message: " + exception.getMessage());
		System.out.println("HTTP  Code: "    + exception.getStatusCode());
		System.out.println("AWS Error Code:" + exception.getErrorCode());
		System.out.println("Error Type:    " + exception.getErrorType());
		System.out.println("Request ID:    " + exception.getRequestId());
	} catch (AmazonClientException ace) {
		System.out.println("Caught an AmazonClientException, " +
				"which means the client encountered " +
				"an internal error while trying to communicate" +
				" with S3, " +
		"such as not being able to access the network.");
		System.out.println("Error Message: " + ace.getMessage());
	}
}