Jackson validation for "\;" in a json request

[vdammala vkumar]

Hi All,

I am using jackson object mapper to validate and unmarshall the json request , currently facing below issue with special characters "\;";

Input request has this element : "lastName": "GADD2\;:”’,.?/ AAC??¼ÆÐæ"

com.fasterxml.jackson.databind.JsonMappingException: Unrecognized character escape ';' (code 59)

when i applied below configuration , it doesn't produce "\" in output.

mapper.configure(JsonParser.Feature.ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER, true);

Any help regarding this will be much appreciated since it is a blocker for me.

Regards,
Vijay

[Karthik Shiraly]

It's not a valid JSON string. This railroad diagram shows what is valid:

As you can see, there is no ";" after "\". If your JSON strings should contain backslashes (or newlines or tabs or ...), they should be escaped using prefix backslashes by whichever component is producing the JSON:
{"lastName": "GADD2\\;:”’,.?/ AAC??¼ÆÐæ"}

[vdammala vkumar]

Excellent Karthik , thanks for your effort...I will take care of it.

[vdammala vkumar]

Karthik , Adding one more "\" to it resolved the problem

Actual : GADD2\;:”’,.?/ AAC??¼ÆÐæ

Fix : GADD2\\;:”’,.?/ AAC??¼ÆÐæ