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POJSON: JsonMappingException while try to deserialize object with null values
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Id
18096589
data
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18096714
AnswerCount
2
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CommentCount
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CommunityOwnedDate
CreationDate
2013-08-07T06:55:44.643
FavoriteCount
6
LastActivityDate
2017-09-27T16:48:18.890
LastEditDate
2017-09-27T16:48:18.890
LastEditorUserId
1278949
OwnerUserId
2761509
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PostTypeId
1
Score
18
ViewCount
54009
LastEditorDisplayName
text
Body
I try to deserialize object that contains null-properties and have the <code>JsonMappingException</code>. What I do: <pre><code>String actual = "{\"@class\" : \"PersonResponse\"," + " \"id\" : \"PersonResponse\"," + " \"result\" : \"Ok\"," + " \"message\" : \"Send new person object to the client\"," + " \"person\" : {" + " \"id\" : 51," + " \"firstName\" : null}}"; ObjectMapper mapper = new ObjectMapper(); mapper.readValue(new StringReader(json), PersonResponse.class); //EXCEPTION! </code></pre> BUT: if to throw away <code>"firstName = null"</code> property - all works fine! I mean pass the next string: <pre><code>String test = "{\"@class\" : \"PersonResponse\"," + " \"id\" : \"PersonResponse\"," + " \"result\" : \"Ok\"," + " \"message\" : \"Send new person object to the client\"," + " \"person\" : {" + " \"id\" : 51}}"; ObjectMapper mapper = new ObjectMapper(); mapper.readValue(new StringReader(json), PersonResponse.class); //ALL WORKS FINE! </code></pre> Question: How to avoid this exception or to pledge Jackson ignore null-values during serialization? Throws: Message: <pre><code>com.fasterxml.jackson.databind.MessageJsonException: com.fasterxml.jackson.databind.JsonMappingException: N/A (through reference chain: person.Create["person"]->Person["firstName"]) </code></pre> cause: <pre><code>com.fasterxml.jackson.databind.MessageJsonException: com.fasterxml.jackson.databind.JsonMappingException: N/A (through reference chain: prson.Create["person"]->Person["firstName"]) </code></pre> cause: <code>java.lang.NullPointerException</code>
Tags
<java><json><jackson><json-deserialization>
Title
JSON: JsonMappingException while try to deserialize object with null values
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1. PO
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1. USlambda
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1. USVB_
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 POJSON: JsonMappingException while try to deserialize object with null values
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