An exception “The Content-MD5 you specified did not match what we received”

Question

I got an exception, I never got before when testing my application that uploads a file from ec2 to s3. The content is:

Exception in thread \"Thread-1\" com.a         


        

Answer 1

I also ran into this error when I was doing something like this:

InputStream productInputStream = convertImageFileToInputStream(file);

InputStream thumbnailInputStream = generateThumbnail(productInputStream);

String uploadedFileUrl = amazonS3Uploader.uploadToS3(BUCKET_PRODUCTS_IMAGES, productFilename, productInputStream);

String uploadedThumbnailUrl = amazonS3Uploader.uploadToS3(BUCKET_PRODUCTS_IMAGES, productThumbnailFilename, thumbnailInputStream);

The generateThumbnail method was manipulating the productInputStream using a third party library. Because I couldn't modify the third party library, I simply performed the upload first:

InputStream productInputStream = convertImageFileToInputStream(file);

// do this first... 
String uploadedFileUrl = amazonS3Uploader.uploadToS3(BUCKET_PRODUCTS_IMAGES, productFilename, productInputStream);

/// and then this...
InputStream thumbnailInputStream = generateThumbnail(productInputStream);

String uploadedThumbnailUrl = amazonS3Uploader.uploadToS3(BUCKET_PRODUCTS_IMAGES, productThumbnailFilename, thumbnailInputStream);

... and added this line inside my generateThumbnail method:

productInputStream.reset();