private Object convertObjectArray(JsonNode node, TypeInformation<?> elementType) {
		final Object[] array = (Object[]) Array.newInstance(elementType.getTypeClass(), node.size());
		for (int i = 0; i < node.size(); i++) {
			array[i] = convert(node.get(i), elementType);
		}
		return array;
	}
Configures the failure behaviour if a JSON field is missing.

<p>By default, a missing field is ignored and the field is set to null.

@param failOnMissingField Flag indicating whether to fail or not on a missing field.
kafka-base/kafka-base-source/src/main/java/org/apache/flink/formats/json/DTJsonRowDeserializationSchema.java