限制所有课程的Jackson序列化/反序列化深度

Question

I have tried CustomJSONSerializer from Suppress wrapper object when serializing Java object into JSON using Jackson .

But getting following exception:

com.fasterxml.jackson.databind.JsonMappingException: object is not an instance of declaring class (through reference chain: com.fasterxml.jackson.databind.type.SimpleType["test"])
at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:232)
at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:197)
at com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:183)

I want to serialize entity Like

Entity A

Entity A.Parent

Entity A.Parent.Parent

Answer 1

I got this error too when switching from jackson 2.1.5 to 2.2.0 (or 2.2.1), try downgrading jackson to 2.1.5? Assume it's due to stricter checks in 2.2, but haven't figured out yet how to correct it.