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This is the first part in a series that we’re going to be doing on Java concurrency. Specifically, we are going to dive into the concurrency tools built into Java 1.5 and beyond. We’re going to assume you have a basic understanding of synchronization and volatile keywords. The first post will cover semaphores - specifically counting semaphores. … Read more
There are cases where we need to use a pessimistic locking strategy. While optimistic updates are an absolute minimum, we deploy a pessimistic locking strategy into a carefully thought out design. We use pessimistic locking strategies in two primary cases: As a semaphore to ensure only a single process executes a certain block of code … Read more