in src/main/java/org/apache/sling/models/jacksonexporter/impl/JacksonExporter.java [149:154]
private Map<String, String> mergeWithConfiguredOptions(@NotNull Map<String, String> options) {
Map<String, String> mergedMap = new LinkedHashMap<>();
mergedMap.putAll(mappingOptions);
mergedMap.putAll(options);
return mergedMap;
}