Let's take a step back and look at the rise of microservices and REST and the apparent decline of SOAP-based web services. What are the statistics and the reasons?
Your stakeholders should know what's going on during an Agile transition. There are ten ways that you can improve or implement stakeholder communication to keep them in the loop.
Hazelcast is hands down a great caching tool when it comes to a JVM based application. If you use Amazon Web Services, Hazelcast integrates wonderfully.
When putting a system together, you need to decide whether you're going to keep the code in one repository or split it across multiple repos. Here's some insight.