InMemoryBufferingS3OutputStream wrongly applys contentLength to UploadPartRequest causing timeout

[Mobe91]

Large file uploads that are broken up into multiple part uploads by InMemoryBufferingS3OutputStream result in a request timeout if ObjectMetadata containing the full content length of the file is supplied. This is because InMemoryBufferingS3OutputStream applies the full ObjectMetadata including the content length to the software.amazon.awssdk.services.s3.model.UploadPartRequest.

Example code snippet that causes the issue:

byte[] content = new byte[20_000_000];
InputStream is = new ByteArrayInputStream(content);
s3Template.upload(bucketName, storageKey, is, ObjectMetadata.builder().contentLength(content.length).build());

[maciejwalkowiak]

Thanks for reporting @Mobe91. Would you like to contribute a fix?