Double-Checked Locking: Clever, but Broken
Though many Java books and articles recommend double-checked locking, unfortunately, it is not guaranteed to work in Java. (February, 2001)
Warning! Threading in a Multiprocessor World
Many authors advocate the double-checked locking idiom to access a Singleton object in an intuitively thread-safe way. Unfortunately, for counterintuitive reasons, double-checked locking doesn't work in Java. (February, 2001)
Why Thread Pools are Important in Java
Explains the use of thread pools to create better performing applications. (October, 2000)
Programming Java Threads in the Real World, Part 9
Discussion of two more architectural solutions to threading problems: a synchronous dispatcher (or 'reactor') and an asynchronous dispatcher (or 'active object'). (June, 1999)
Programming Java Threads in the Real World, Part 8
Discusses architectural solutions to threading problems. Takes a look at threads from the perspective of an object-oriented designer, and at how to implement threads in an object-oriented environment, focusing on the implementation of asynchronous methods. (May, 1999)
Programming Java Threads in the Real World, Part 7
Reader/writer locks let multiple threads safely access a shared resource in an efficient way. (April, 1999)
Programming Java Threads in the Real World, Part 6
How to implement the Observer pattern (used by AWT/Swing for its event model) in a multithreaded environment. (March, 1999)
Programming Java Threads in the Real World, Part 5
Timers let you perform fixed-interval operations, such as animation refreshes. (February, 1999)
Programming Java Threads in the Real world, Part 4
A condition variable adds to wait the ability to not wait when the condition you're waiting for has already taken place; and a counting semaphore lets you control a pool of resources without sucking up machine cycles in polling loops. (December, 1998)
Programming Java Threads in the Real World, Part 3
Looks at how and why you might want to roll your own exclusion semaphores, and presents a lock manager that will help you safely acquire multiple semaphores. (November, 1998)
Programming Java Threads in the Real World, Part 2
Discusses the perils that can arise when you approach multithreading in a naive way. (October, 1998)
Programming Java Threads in the Real World, Part 1
Discusses the things you need to know to program threads in the real world. This article assumes you understand the language-level support for threads and focuses on the legion of problems that arise when you try to use these language features. (September, 1998)
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