Created
July 25, 2025 20:41
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STJ throws different serialization error in net9+ compared to net8.0
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using System.Text.Json; | |
namespace STJTFMTest | |
{ | |
internal class Program | |
{ | |
static void Main(string[] args) | |
{ | |
var personCollection = new[] | |
{ | |
new | |
{ | |
Name = "Jane", | |
Age = 25, | |
Address = new | |
{ | |
Street = "456 Elm St" | |
} | |
} | |
}; | |
using var memoryStream = new MemoryStream(); | |
System.Text.Json.JsonSerializer.Serialize(memoryStream, personCollection); | |
memoryStream.Position = 0; | |
Deserialize(memoryStream, typeof(Stream[]), CancellationToken.None); | |
} | |
// Below method has code as Azure.Core.Serialization.JsonObjectSerializer | |
public static object? Deserialize(Stream stream, Type returnType, CancellationToken cancellationToken) | |
{ | |
using MemoryStream memoryStream = new MemoryStream(); | |
stream.CopyTo(memoryStream); | |
return JsonSerializer.Deserialize(memoryStream.ToArray(), returnType, new JsonSerializerOptions { }); | |
// net8.0 exception: | |
// System.NotSupportedException: 'Deserialization of types without a parameterless constructor, a singular parameterized constructor, or a parameterized constructor annotated with | |
// net9.0+ exception | |
// System.NotSupportedException: 'Deserialization of interface or abstract types is not supported. Type 'System.IO.Stream'. Path: $[0] | LineNumber: 0 | BytePositionInLine: 2.' | |
} | |
} | |
} |
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