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Mastering Concurrency Programming with Java 8

You're reading from   Mastering Concurrency Programming with Java 8 Master the principles and techniques of multithreaded programming with the Java 8 Concurrency API

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Product type Paperback
Published in Feb 2016
Publisher Packt
ISBN-13 9781785886126
Length 430 pages
Edition 1st Edition
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Author (1):
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Javier Fernández González Javier Fernández González
Author Profile Icon Javier Fernández González
Javier Fernández González
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Table of Contents (13) Chapters Close

Preface 1. The First Step – Concurrency Design Principles FREE CHAPTER 2. Managing Lots of Threads – Executors 3. Getting the Maximum from Executors 4. Getting Data from the Tasks – The Callable and Future Interfaces 5. Running Tasks Divided into Phases – The Phaser Class 6. Optimizing Divide and Conquer Solutions – The Fork/Join Framework 7. Processing Massive Datasets with Parallel Streams – The Map and Reduce Model 8. Processing Massive Datasets with Parallel Streams – The Map and Collect Model 9. Diving into Concurrent Data Structures and Synchronization Utilities 10. Integration of Fragments and Implementation of Alternatives 11. Testing and Monitoring Concurrent Applications Index

Testing concurrency applications

Testing concurrency applications is a hard task. The threads of your application run in your computer without any guarantee of their execution order (except the synchronization mechanisms that you have included) so it's very difficult (impossible most of the time) to test all the circumstances that can occur. You can have errors impossible to reproduce because it only happens under rare or unique circumstances or errors that happen in one machine but not in others due to the number of cores within the CPU. To detect and reproduce this situation, you can use different tools:

  • Debug: You can use the debugger to debug the application. This process will be very tedious if you have only a few threads in the application and you have to go step by step in every thread. You can configure Eclipse or NetBeans to test concurrent applications.
  • MultithreadedTC: This is an archived project of Google Code that can be used to force the order of execution in a concurrent...
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