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Java concurrency

Building and testing concurrent applications for the Java platform

Date:  07 Oct 2011 (Published 23 Aug 2011) |Level: Intermediate |

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1. Learn Java concurrency basics

Threads and processes are the basic units of execution in concurrent Java programming. Every process has at least one thread, and all of the threads in a process share its resources. Understand the benefits of threads and why it's essential to use them safely.

Read: Introduction to Java threadsItem marked not complete - Click to mark complete

2. Master high-level Java concurrency utilities

Learn how to use the thread-safe, well-tested, high-performance concurrent building blocks in the java.util.concurrent package, introduced in Java SE 5. And find out how to avoid both common and lesser-known concurrency pitfalls.

Practice: Concurrency in JDK 5.0 Item marked not complete - Click to mark complete

Read: 5 things you didn't know about.. java.util.concurrent, Part 1Item marked not complete - Click to mark complete

Read: 5 things you didn't know about ... java.util.concurrent, Part 2Item marked not complete - Click to mark complete

Read: Java concurrency bug patterns for multicore systemsItem marked not complete - Click to mark complete

3. Explore alternate concurrency models

In response to advances in multicore processor hardware, approaches to writing concurrent applications for the Java platform are diversifying. Concurrency support in two alternate languages for the JVM — Scala and Clojure — eschew the thread model. Learn about the actor and agent concurrency in those languages, and about third-party Java and Groovy libraries that implement those models. And learn more about fork-join, a multicore-friendly concurrency enhancement in Java SE 7.

Listen: Alex Miller talks concurrencyItem marked not complete - Click to mark complete

Read: Explore Scala concurrencyItem marked not complete - Click to mark complete

Read: Clojure and concurrencyItem marked not complete - Click to mark complete

Read: Introducing Kilim: An actor framework for Java concurrencyItem marked not complete - Click to mark complete

Read: Resolve common concurrency problems with GParsItem marked not complete - Click to mark complete

Read: Java theory and practice: Stick a fork in itItem marked not complete - Click to mark complete




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About this knowledge path

In concurrent applications, several computations execute simultaneously — potentially interacting with one another — on multiple cores in the same chip, on preemptively time-shared threads on the same processor, or on physically separate processors. Java's built-in support for threading facilitates the building of multithreaded applications but also requires developers to be vigilant about concurrency issues. This knowledge path is for Java developers who want to master multithreaded programming in the Java language — and learn about alternative approaches for the Java platform that are designed to exploit modern multicore processor hardware.

Activities in this path

  1. Learn Java concurrency basics
  2. Master high-level Java concurrency utilities
  3. Explore alternate concurrency models

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