java.util.concurrent.Future basics

Hereby I am starting a series of articles about future concept in programming languages (also known as promises or delays)…

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Java concurrency: the hidden thread deadlocks

Most Java programmers are familiar with the Java thread deadlock concept. It essentially involves 2 threads waiting forever for each…

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Synchronising Multithreaded Integration Tests

Testing threads is hard, very hard and this makes writing good integration tests for multithreaded systems under test… hard. This…

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How to shoot yourself in foot with ThreadLocals

It will start nicely. Like most of the stories. You discover a new concept and are amazed by it’s powers.…

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Java Thread Pool Example using Executors and ThreadPoolExecutor

A thread pool manages the pool of worker threads, it contains a queue that keeps tasks waiting to get executed.…

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How many threads do I need?

It depends on your application. But for those who wish to have some insight about how to squeeze out most…

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Java Deadlock Example – How to analyze deadlock situation

Deadlock is a programming situation where two or more threads are blocked forever, this situation arises with at least two…

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Waiting for the right moment – in integration testing

When you have to test multi-threaded programs, there is always the need to wait until the system arrives at a…

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Can synchronization be optimised away?

Overview There is a common misconception that because the JIT is smart and synchronization can be eliminated for an object…

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