Programming Concurrency on the JVM

Recap

Whether we’re writing an interactive client-side desktop application or a high-performance service for the back end, concurrency will play a vital role in programming efforts should we reap the benefits of the evolving hardware trends and multicore processors. It’s a way to influence the user experience, responsiveness, and speed of applications that run on these powerful machines. The traditional programming model of concurrency on the JVM—dealing with shared mutability—is froth with problems. Besides creating threads, we have to work hard to prevent starvation, deadlocks, and race conditions—things that are hard to trace and easy to get wrong. By avoiding shared mutability, we remove the problems at the root. Lean toward shared immutability ...