LouisLou2 opened a new issue, #2014: URL: https://github.com/apache/fury/issues/2014
### Search before asking - [x] I had searched in the [issues](https://github.com/apache/fury/issues) and found no similar issues. ### Version I'm using XLANG mode on both ends, but go still doesn't deserialize java serialized objects correctly! ### Component(s) Go ### Minimal reproduce step here is my trail. and please Let me know if I'm making some kind of cheap mistake. ## My First Trial **java** ```java public class Main { public static void main(String[] args) { Fury fury = Fury.builder() .withLanguage(Language.XLANG) .withRefTracking(true) .build(); Map<String, Double> map = new HashMap<>(); map.put("key", 1.0); map.put("key2", 2.0); byte [] bytes = fury.serialize(map); // save to file try (FileOutputStream fos = new FileOutputStream("sample_map.fury")) { fos.write(bytes); } catch (IOException e) { e.printStackTrace(); } } } ``` **go** ```go func deserialize() { bytes, err := os.ReadFile("./res/sample_map.fury") if err != nil { fmt.Println("Error reading file:", err) return } fury := fury2.NewFury(true) var newValue interface{} if err := fury.Unmarshal(bytes, &newValue); err != nil { panic(err) } fmt.Println(newValue) } ``` The result is that bytes can be successfully deserialized in java but gives a strange error in go. **go console** ``` GOROOT=/usr/lib/go-1.22 #gosetup GOPATH=/home/leo/go #gosetup /usr/lib/go-1.22/bin/go build -o /home/leo/.cache/JetBrains/GoLand2024.3/tmp/GoLand/___go_build_github_com_apache_fury_go_fury_main github.com/apache/fury/go/fury/main #gosetup /home/leo/.cache/JetBrains/GoLand2024.3/tmp/GoLand/___go_build_github_com_apache_fury_go_fury_main #gosetup panic: type of id 50 not supported, supported types: map[1:bool 2:uint8 3:int8 5:int16 7:int32 9:int64 11:float32 12:float64 13:string 14:[]uint8 16:fury.Date 18:time.Time 25:[]interface {} 30:map[interface {}]interface {} 257:fury.GenericSet 258:[]bool 259:[]int16 260:[]int32 261:[]int64 262:[]float32 263:[]float64 264:[]string] goroutine 1 [running]: main.deserialize() /home/leo/projects/furygo/main/main.go:54 +0x185 main.main() /home/leo/projects/furygo/main/main.go:37 +0xf Process finished with the exit code 2 ``` ## Second Trial Next I went to discover the difference in the logic of the deserialization code between the two. And then realized that in the go code there is one more part than in the java **go** ```go buf.ReadInt32() // nativeObjectsStartOffset nativeObjectsSize := buf.ReadInt32() if f.peerLanguage == GO { if nativeObjectsSize > 0 { return fmt.Errorf("native serialization for golang is not supported currently") } } return f.ReadReferencable(buf, reflect.ValueOf(v).Elem()) ``` **java** ```java obj = xreadRef(buffer); ``` I tried commenting out the code that reads an additional 4+4=8 bytes and then re-running the go code, however, a new error occurs ```bash GOROOT=/usr/lib/go-1.22 #gosetup GOPATH=/home/leo/go #gosetup /usr/lib/go-1.22/bin/go build -o /home/leo/.cache/JetBrains/GoLand2024.3/tmp/GoLand/___go_build_github_com_apache_fury_go_fury_main github.com/apache/fury/go/fury/main #gosetup /home/leo/.cache/JetBrains/GoLand2024.3/tmp/GoLand/___go_build_github_com_apache_fury_go_fury_main #gosetup panic: type of id 29 not supported, supported types: map[1:bool 2:uint8 3:int8 5:int16 7:int32 9:int64 11:float32 12:float64 13:string 14:[]uint8 16:fury.Date 18:time.Time 25:[]interface {} 30:map[interface {}]interface {} 257:fury.GenericSet 258:[]bool 259:[]int16 260:[]int32 261:[]int64 262:[]float32 263:[]float64 264:[]string] goroutine 1 [running]: main.deserialize() /home/leo/projects/furygo/main/main.go:54 +0x185 main.main() /home/leo/projects/furygo/main/main.go:37 +0xf Process finished with the exit code 2 ``` I can roughly see that it's a type mismatch error, and then I went and compared the type id declared in furygo's `type.go` with the definition in the guide([xlang_type_mapping](https://fury.apache.org/docs/guide/xlang_type_mapping)), and there seems to be some discrepancies, and I'm a little confused about these conflicts, or am I using it incorrectly? ### What did you expect to see? furygo deserialized object successfully ### What did you see instead? unsupported type error ### Anything Else? _No response_ ### Are you willing to submit a PR? - [ ] I'm willing to submit a PR! -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
