Java Concurrency Tutorial – Thread Pools

One of the most generally useful concurrency enhancements delivered in Java 1.5 was the introduction of customizable thread pools. These…

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Java Concurrency Tutorial – Reentrant Locks

Java’s synchronized keyword is a wonderful tool – it allows us a simple and reliable way to synchronize access to…

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Java Concurrency Tutorial – Semaphores

This is the first part in a series that we’re going to be doing on Java concurrency. Specifically, we are…

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The Exchanger and GC-less Java

Overview The Exchanger class is very efficient at passing work between thread and recycling the objects used. AFAIK, It is…

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Quick tips for improving Java apps performance

Ever had performance problems? Yeah me too. If my manager screams “faaaaster” one more time, i will have hearing impairment…

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How does JVM handle locks

As we are talking about the latest version of Sun Hotspot Java Virtual Machine 1.6 there’re the following three types…

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How to Avoid ConcurrentModificationException when using an Iterator

Java Collection classes are fail-fast which means that if the Collection will be changed while some thread is traversing over…

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Java Fork/Join for Parallel Programming

The last few years a paradigm shift is taking place in the field of computer processors. For years, processor makers…

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Java Memory Model – Quick overview and things to notice

In computing, a Memory model describes how threads interact through memory, or more generally specify what assumptions the compiler is…

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