Jackson Databind Should never call set() on setterless property during deserialization

Hi, I have something like the following code:

``` public class DataBean {

private final String val;

@JsonCreator
public DataBean(
        @JsonProperty(value = "val")
        String val) {
    super();
    this.val = val;
}

public String getVal() {
    return val;
}

public List<String> getList(){
    return new ArrayList<>();
}

@Override
public String toString() {
    return "DataBean [val=" + val + "]";
}
public static void main(String[] args) throws Exception {
    ObjectMapper om = new ObjectMapper();
    String json;
    DataBean out;
    json = "{\"list\":[\"11\"],\"val\":\"VAL2\"}";
    out = om.readerFor(DataBean.class).readValue(json);
    System.out.println("this is ko" + out);
}

}

When I run the test, I get:

 ```
Exception in thread "main" com.fasterxml.jackson.databind.exc.ValueInstantiationException: Cannot construct instance of `DataBean`, problem: Should never call `set()` on setterless property ('list')
 at [Source: (String)"{"list":["11"],"val":"VAL2"}"; line: 1, column: 28]
    at com.fasterxml.jackson.databind.exc.ValueInstantiationException.from(ValueInstantiationException.java:47)
    at com.fasterxml.jackson.databind.DeserializationContext.instantiationException(DeserializationContext.java:1735)
    at com.fasterxml.jackson.databind.DeserializationContext.handleInstantiationProblem(DeserializationContext.java:1109)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.wrapInstantiationProblem(BeanDeserializerBase.java:1757)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:424)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1287)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:326)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:159)
    at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:1719)
    at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1261)
    at DataBean.main(DataBean.java:53)
Caused by: java.lang.UnsupportedOperationException: Should never call `set()` on setterless property ('list')
    at com.fasterxml.jackson.databind.deser.impl.SetterlessProperty.set(SetterlessProperty.java:147)
    at com.fasterxml.jackson.databind.deser.impl.PropertyValue$Regular.assign(PropertyValue.java:62)
    at com.fasterxml.jackson.databind.deser.impl.PropertyBasedCreator.build(PropertyBasedCreator.java:207)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:422)
 ```
 If I modify the JSON, having the value of the constructor as first field, it runs OK. 

In order to solve the issue, I try the following horrible patch:

diff --git a/src/main/java/com/fasterxml/jackson/databind/deser/impl/SetterlessProperty.java b/src/main/java/com/fasterxml/jackson/databind/deser/impl/SetterlessProperty.java index 9c80e49..ca7ec85 100644 --- a/src/main/java/com/fasterxml/jackson/databind/deser/impl/SetterlessProperty.java +++ b/src/main/java/com/fasterxml/jackson/databind/deser/impl/SetterlessProperty.java @@ -3,6 +3,8 @@ import java.io.IOException; import java.lang.annotation.Annotation; import java.lang.reflect.Method; +import java.util.Collection; +import java.util.List;

import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.core.JsonToken; @@ -144,7 +146,21 @@

 @Override
 public final void set(Object instance, Object value) throws IOException {

• throw new UnsupportedOperationException("Should never call set() on setterless property ('"+getName()+"')");
• if(value instanceof Collection) {
• Collection