private void buildExtensions(io.swagger.v3.oas.annotations.Operation apiOperation, Operation operation, Locale locale) {
		if (apiOperation.extensions().length > 0) {
			Map<String, Object> extensions = AnnotationsUtils.getExtensions(propertyResolverUtils.isOpenapi31(), apiOperation.extensions());
			if (propertyResolverUtils.isResolveExtensionsProperties()) {
				Map<String, Object> extensionsResolved = propertyResolverUtils.resolveExtensions(locale, extensions);
				extensionsResolved.forEach(operation::addExtension);
			}
			else {
				extensions.forEach(operation::addExtension);
			}
		}
	}
Build extensions.

@param apiOperation the api operation
@param operation    the operation
@param locale       the locale
springdoc-openapi-starter-common/src/main/java/org/springdoc/core/service/OperationService.java