on jackson | json | maven | java

com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of * out of START_ARRAY token

I encounter this exception after a (massive) maven dependencies update which included CXF and Spring. The project was supposed to be updated with Jackson 2.3 but the stack shows that vesion 2.2.3 of jackson-databind is used.

com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of com.*.api.model.Request out of START_ARRAY token
at [Source: <a href="mailto:java.io.ByteArrayInputStream@7d1519c4">java.io.ByteArrayInputStream@7d1519c4</a>; line: 1, column: 1]
               at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:164) ~[jackson-databind-2.2.3.jar:na]
               at com.fasterxml.jackson.databind.DeserializationContext.mappingException(DeserializationContext.java:575) ~[jackson-databind-2.2.3.jar:na]
               at com.fasterxml.jackson.databind.DeserializationContext.mappingException(DeserializationContext.java:569) ~[jackson-databind-2.2.3.jar:na]

This exception occured on deserializing a String to a Date with a @JsonFormat annotation on the model property

@JsonFormat(pattern = "yyyy-MM-dd")

Adding the following dependency solves the problem.

        <dependency>
            <groupId>com.fasterxml.jackson.dataformat</groupId>
            <artifactId>jackson-dataformat-xml</artifactId>
            <version>2.3.3</version>
        </dependency>

This is kind of temporary fix, as the root cause comes from the project dependencies version that must be cross-checked.