In this chapter, we covered concurrency enhancements introduced with the Java 9 platform. We took a deep look at concurrency both as a core Java concept and with an eye to what Java 9 is delivering. We also explored the Flow class API that supports reactive programming, a new concept in Java 9. In addition, we explored concurrency enhancements and the new spin-wait hints introduced in Java 9.
In the next chapter, we will highlight the security enhancements introduced in Java 9 along with practical examples.
