Could you please file an issue for `jackson-databind`. Looks like a bug.
-+ Tatu +-
On Thu, Mar 23, 2017 at 5:11 PM, Anuj Kumar wrote:
>
> I am getting an exception with jackson databind version 2.8.0 and later,
> everything works fine with any version below 2.8.0.
>
> Issue is, if I have a property name with an underscore and the letter after
> it is NOT the same as the first letter, then things blow up.
>
>
> For example I have a Person class which contains a Set which has the
> name as "person_z" which fails.
>
> But if I rename it to "person_p" it works.
>
>
> public class Person {
> @JsonProperty("name")
> private String name;
> @JsonProperty("person_z") // renaming this to person_p works
> @JsonIgnoreProperties(value = {"person_z"}) // renaming this to person_p
> works
> private Set personZ;
> }
>
>
> public class TestJackson {
>
> public static void main(String[] args) throws IOException {
>
> String st =" [ {\n"
> + "\"name\": \"admin\",\n"
> + "\"person_z\": [" // renaming this to person_p works
> + " {"
> + "\"name\": \"admin\""
> + " }"
> + "]"
> + " }]";
>
> ObjectMapper mapper = new ObjectMapper();
> mapper.readValue(st,
> mapper.getTypeFactory().constructCollectionType(List.class, Person.class));
> }
>
> }
>
>
> Exception in thread "main"
> com.fasterxml.jackson.databind.JsonMappingException: No _valueDeserializer
> assigned
> at [Source: [ {
> "name": "admin",
> "person_z": [ {"name": "admin" }] }]; line: 3,
> column: 41] (through reference chain:
> java.util.ArrayList[0]->com.example.Person["person_z"]->java.util.HashSet[0]->com.example.Person["name"])
> at
> com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:261)
> at
> com.fasterxml.jackson.databind.DeserializationContext.reportMappingException(DeserializationContext.java:1233)
> at
> com.fasterxml.jackson.databind.deser.impl.FailingDeserializer.deserialize(FailingDeserializer.java:27)
> at
> com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:490)
> at
> com.fasterxml.jackson.databind.deser.impl.FieldProperty.deserializeAndSet(FieldProperty.java:101)
> at
> com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:276)
> at
> com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:140)
> at
> com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:277)
> at
> com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:249)
> at
> com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:26)
> at
> com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:490)
> at
> com.fasterxml.jackson.databind.deser.impl.FieldProperty.deserializeAndSet(FieldProperty.java:101)
> at
> com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:276)
> at
> com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:140)
> at
> com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:277)
> at
> com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:249)
> at
> com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:26)
> at
> com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3789)
> at
> com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2871)
> at com.example.TestJackson.main(TestJackson.java:28)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
>
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