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Investigating Deadlocks – Part 5: Using Explicit Locking

In my last blog I looked at fixing my broken, deadlocking balance transfer sample code using both Java’s traditional synchronized keyword and lock ordering. There is, however, an ...
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Investigating Deadlocks – Part 4: Fixing the Code

In the last in this short series of blogs in which I’ve been talking about analysing deadlocks, I’m going to fix my BadTransferOperation code. If you’ve seen the other blogs ...
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Investigating Deadlocks – Part 3

In my previous two blogs in this series, part 1 and part 2, I’ve demonstrated how to create a piece of bad code that deadlocks and then used this code to show three ways of taking ...
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Investigating Deadlocks – Part 2

One of the most important requirements when investigating deadlocks is actually having a deadlock to investigate. In my last blog I wrote some code called DeadlockDemo that used a ...
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Investigating Deadlocks – Part 1

I’m sure we’ve all been there: it’s late, you’re hungry, your server has hung or your application’s running at snail’s pace, and there’s someone breathing down your neck ...
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Spring 3.1: Caching and EhCache

If you look around the web for examples of using Spring 3.1’s built in caching then you’ll usually bump into Spring’s SimpleCacheManager, which the Guys at ...
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Spring 3.1 Caching and Config

I’ve recently being blogging about Spring 3.1 and its new caching annotations @Cacheable and @CacheEvict. As with all Spring features you need ...
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Using PowerMock to Mock Constructors

In my opinion, one of the main benefits of dependency injection is that you can inject mock and/or stub objects into your code in order to improve testability, increase test coverage ...
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Spring 3.1 Caching and @CacheEvict

My last blog demonstrated the application of Spring 3.1’s @Cacheable annotation that’s used to mark methods whose return values will be stored in a cache. However, @Cacheable is ...
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Spring 3.1 Caching and @Cacheable

Caches have been around in the software world for long time. They’re one of those really useful things that once you start using them you wonder how on earth you got along without ...
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