Asynchronous timeouts with CompletableFuture

One day I was rewriting poorly implemented multi-threaded code that was blocking at some point on Future.get():      …

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Playing With Java Concurrency

Recently I needed to transform some filet that each has a list (array) of objects in JSON format to files…

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Thread local storage in Java

One of the rarely known features among developers is Thread-local storage.  The idea is simple and need for it comes…

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Converting between Completablefuture and Observable

CompletableFuture<T> from Java 8 is an advanced abstraction over a promise that value of type T will be available in…

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ExecutorService – 10 tips and tricks

ExecutorService abstraction has been around since Java 5. We are talking about 2004 here. Just a quick reminder: both Java…

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100 Multithreading and Java Concurrency Interview Questions and Answers – The ULTIMATE List (PDF Download)

In this post, we feature a comprehensive article on Multithreading and Java Concurrency Interview Questions and Answers. EDITORIAL NOTE: Concurrency…

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Beyond Thread Pools: Java Concurrency is Not as Bad as You Think

Apache Hadoop, Apache Spark, Akka, Java 8 streams and Quasar: The classic use cases to the newest concurrency approaches for Java…

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How to Use Callable and FutureTask

Introduction Since Java 1.5 there has been a new set of objects under java.util.concurrent.  This package has a number of…

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Java Concurrency Tutorial – Locking: Intrinsic locks

In previous posts we reviewed some of the main risks of sharing data between different threads (like atomicity and visibility)…

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