serverless-workflow-examples/serverless-workflow-newsletter-subscription/subscription-service/src/main/java/org/acme/newsletter/subscription/service/SubscriptionResource.java (3 lines):
	- line 63: // TODO: add an error
	- line 67: // TODO: add an error
	- line 90: // TODO: add an error


serverless-workflow-examples/serverless-workflow-newsletter-subscription/subscription-flow/src/main/resources/META-INF/resources/app.js (1 line):
	- line 128: // TODO: ideally, we have a websocket listening for the new subscription event, then we update the table