Directory: Top/Computers/Programming/Threads/Java

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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.
http://www.javaworld.com/javaworld/jw-11-1998/jw-11-toolbox_p.html
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Programming Java Threads in the Real World, Part 2
Discusses the perils that can arise when you approach multithreading in a naive way.
http://www.javaworld.com/javaworld/jw-10-1998/jw-10-toolbox_p.html
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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.
http://www.javaworld.com/javaworld/jw-09-1998/jw-09-threads_p.html
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Can Double-Checked Locking be Fixed?
In this article, Brian Goetz looks at some of the commonly proposed fixes and shows how each of them fails to render the DCL idiom thread-safe under the Java Memory Model.
http://www.javaworld.com/javaworld/jw-05-2001/jw-0525-double_p.html
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The "Double-Checked Locking is Broken" Declaration
Details on the reasons - some very subtle - why double-checked locking cannot be relied upon to be safe. Signed by a number of experts, including Sun engineers.
http://www.cs.umd.edu/~pugh/java/memoryModel/DoubleCheckedLocking.html
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Thread Synchronization in Java (Sources)
Introduces basic concurrency problems and shows how to solve them by using builtin Java synchronization primitives. (Only sources free accessed without registration)
http://devcentral.iticentral.com/articles/Java/thread_sync/code.html
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Implementing Read-Write Locks in Java
Read-write locks allow multiple threads to acquire a read lock provided no other thread currently has a write lock on the same object. A thread can acquire a write lock if no other thread owns either a read lock or a write lock.
http://www.asingh.net/technical/rwlocks.html
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Avoid Synchronization Deadlocks
Explains how to apply consistent rules for acquiring multiple locks simultaneously, to reduce the likelihood of synchronization deadlocks.
http://www.javaworld.com/javaworld/jw-10-2001/jw-1012-deadlock_p.html
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Can ThreadLocal Solve the Double-checked Locking Problem?
Explains how to fix the double-checked locking idiom by using thread-local variables and takes a look at its performance.
http://www.javaworld.com/javaworld/jw-11-2001/jw-1116-dcl_p.html
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Thread Synchronization in Java
Producer Consumer, Dining Philosophers, Reader Writer problems. Applet demonstration, design diagram. Source code accessible by e-mail request.
http://www.sws.bfh.ch/~fischli/threads/
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