B4J Question JAVA and c++ server communication mess? What should I do?

Sub btnSend_Action
Dim m As Message
Dim s As String="shen17888"


m.Age = spnrAge.Value
m.Name = txtName.Text
Dim ser As B4XSerializator
astream.Write(ser.ConvertObjectToBytes(s))
End Sub

JAVA and c++ server communication mess? What should I do?