Final answer:
The question is about the 'JsonIgnore Properties' annotation in Java and its 'ignore Unknown' property.
Step-by-step explanation:
The question is related to JSON and its properties, specifically the JsonIgnore Properties annotation in Java. This annotation is used to indicate that certain properties of a Java object should be ignored during JSON serialization and deserialization. The ignore Unknown property inside JsonIgnore Properties is set to true, which means that if there are any unknown properties in the JSON input, they will be ignored, and no exception will be thrown.
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