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Description
Describe the bug
I have an empty S3 object. When I create an InputStream to that object and invoke "read()" I get back an int "212".
Expected Behavior
I would expect InputStream.read() to an empty S3Object to return -1.
Current Behavior
Currently it returns a single byte 212.
Reproduction Steps
When executed against a 0 byte (empty) S3Object the following code returns 212. It should return -1
var getObjectRequest =
GetObjectRequest.builder()
.bucket("bucket")
.key(
"emptyobject")
.build();
try (var fileContent =
s3Client.getObject(getObjectRequest, ResponseTransformer.toInputStream())) {
System.out.println(fileContent.read());
}
Possible Solution
I don't know but the problem appears to be in the software.amazon.awssdk.services.s3.checksums.ChecksumValidatingInputStream class. That is where the result diverges from using something like InputStream.readAllBytes().
Additional Information/Context
No response
AWS Java SDK version used
2.17.283
JDK version used
17
Operating System and version
Windows 11
Activity
youngm commentedon Nov 8, 2022
FWIW, seems to work fine with a 1 byte object. Only empty files are a problem.
yasminetalby commentedon Nov 9, 2022
Hello @youngm ,
Thank you very much for your submission and for bringing this up to our attention. I was able to reproduce and confirm the behavior with the latest version of the SDK and will bring this up to the team for review.
I was wondering if you were encountering any blockers or limitation due to this?
Best regards,
Yasmine
youngm commentedon Nov 9, 2022
@yasminetalby No, I have been able to work around the issue for now on my side. Thanks for asking and picking up the issue!
yasminetalby commentedon Nov 9, 2022
Of course. Thank you very much for bringing up this behavior to our attention, your feedback is very valuable to the team.
I am glad to hear that you have been able to workaround the issue. I will post all updates regarding this in the comment section.
Best regards,
Yasmine
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