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Java 9 Concurrency Cookbook - Second Edition by Javier Fernández González

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Introduction

One of the most common situations in concurrent programming occurs when more than one execution thread shares a resource. In a concurrent application, it is normal for multiple threads to read or write the same data structure or have access to the same file or database connection. These shared resources can provoke error situations or data inconsistency, and we have to implement mechanisms to avoid these errors. These situations are called race conditions and they occur when different threads have access to the same shared resource at the same time. Therefore, the final result depends on the order of the execution of threads, and most of the time, it is incorrect. You can also have problems with change visibility. So if a thread ...

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