[BUG] SDKv12 crashes during GetBlockList for blobs with large blocks

[egross91]

Describe the bug
Int32 overflow exception when parsing blobs with large block >2.1GiB after calling GetBlockListAsync(...).

Expected behavior
A BlockList to be returned without an exception.

Actual behavior (include Exception or Stack Trace)
An OverflowException is being thrown:

{
  "ExceptionMessage":"Value was either too large or too small for an Int32.","ExceptionType":"OverflowException","ExceptionStack":"
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)\r\n
   at Azure.Storage.Blobs.Models.BlobBlock.FromXml(XElement element)\r\n
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()\r\n
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)\r\n
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)\r\n
   at Azure.Storage.Blobs.Models.BlockList.FromXml(XElement element)\r\n
   at Azure.Storage.Blobs.BlobRestClient.BlockBlob.GetBlockListAsync_CreateResponse(ClientDiagnostics clientDiagnostics, Response response)\r\n
   at Azure.Storage.Blobs.BlobRestClient.BlockBlob.<GetBlockListAsync>d__12.MoveNext()\r\n
--- End of stack trace from previous location where exception was thrown ---\r\n
   […]
}

To Reproduce

1. Create a blob with any block size > Int32.MaxValue.
2. Call GetBlockListAsync(...) from SDK for that created blob.

Environment:

• Name and version of the Library package used: Azure.Storage.Blobs 12.7.0
• Hosting platform or OS and .NET runtime version: Windows 10 .NET Framework 4.7.2
• IDE and version : Visual Studio 16.5

Alias
ergros

[amishra-dev]

@jaschrep-msft can you please take a look.

[jaschrep-msft]

This is a bug with our generated code, which means this fix will be dependent on another fix in our swagger repository.

[jaschrep-msft]

#19078 solves this issue.

[jaschrep-msft]

This fix will ship with the next release, currently scheduled to be 12.9.0-beta.2.

[egross91]

@jaschrep-msft, do you have a rough ETA for when that release will be GA?

[jaschrep-msft]

@egross91 @seanmcc-msft

[seanmcc-msft]

Azure.Storage.Blobs v12.0.0-beta.2 shipped on March 9th, and contains the bugfix for this issue.