fix: Map missing properties of JsonValue to java null

Author: xdrsynapse

jakarta-jsonp/src/main/java/com/fasterxml/jackson/datatype/jsonp/JsonValueDeserializer.java

@@ -71,6 +71,11 @@ public JsonValue getNullValue(final DeserializationContext ctxt) {
         return null;
     }
 
+    @Override
+    public JsonValue getAbsentValue(final DeserializationContext ctxt) {
+        return null;
+    }
+
     @Override
     public Object deserializeWithType(JsonParser p,
             DeserializationContext ctxt, TypeDeserializer typeDeser)

jsr-353/src/main/java/com/fasterxml/jackson/datatype/jsr353/JsonValueDeserializer.java

@@ -77,6 +77,11 @@ public JsonValue getNullValue(final DeserializationContext ctxt) {
         return null;
     }
 
+    @Override
+    public JsonValue getAbsentValue(final DeserializationContext ctxt) {
+        return null;
+    }
+
     @Override
     public Object deserializeWithType(JsonParser p,
             DeserializationContext ctxt, TypeDeserializer typeDeser)