Erik Vestergaard

Hi I am trying to write a Delphi RESTCall using JSON. We allready have a javaclass that works. It is using this annotation to make Jackson able to parse correctly. @JsonTypeInfo(use = JsonTypeInfo.Id.CLASS, property = "className") But what is the correspondent construction in Delphi? My code: s := TJson.ObjectToJsonString(o90RpcCall); The error I get is this: <div>JSON parse error: Missing type id when trying to resolve subtype of [simple type, class java.lang.Object]: missing type id property 'className' (for POJO property 'args'); nested exception is com.fasterxml.jackson.databind.exc.InvalidTypeIdException: Missing type id when trying to resolve subtype of [simple type, class java.lang.Object]: missing type id property 'className' (for POJO property 'args') at [Source: (PushbackInputStream); line: 1, column: 181] (through reference chain: o90client.generel.JSONRPCCall["args"]->java.lang.Object[][0])</div></body></html> I guess it is because of the lack of annotation in my class