Verify Stream Developer Guide Samples

[cppwfs]

Test Each of the samples below. If one has an error add a comment to this issue describing the problem. If the sample does not have an error, add comment that states the sample that was tested.

• Stream Application development Kafka https://dataflow.spring.io/docs/stream-developer-guides/streams/standalone-stream-sample/
• Stream Application development RabbitMQ https://dataflow.spring.io/docs/stream-developer-guides/streams/standalone-stream-sample/
• Stream Processing using Spring Cloud Data Flow https://dataflow.spring.io/docs/stream-developer-guides/streams/data-flow-stream/
• Programming Models Imperative https://dataflow.spring.io/docs/stream-developer-guides/programming-models/
• Programming Models Functional https://dataflow.spring.io/docs/stream-developer-guides/programming-models/
• Programming Models Kafka Streams https://dataflow.spring.io/docs/stream-developer-guides/programming-models/
• Continuous Delivery of streaming applications https://dataflow.spring.io/docs/stream-developer-guides/continuous-delivery/cd-basics/