We were having a [race condition][1] on a server which was “fixed” by adding an sleep to the thread to check again later. Yes, it sucked, so I decided to make something more sophisticated and went looking for a library to handle retries with multiple strategies. That’s when I first read about [Guava Retrying][2].
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Remember [my last post] on value types using [Google’s AutoValue]? Today while doing some work on a new Android project I’m starting I thought: ‘Great chance to use AutoValue!’. Guess what, there is a port of Google AutoValue for the Android platform.
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Value types is a fancy name for those classes where you have to implement equals() and hashCode(), and usually toString(). You’ve probably wrote thounsands of those classes, but have you ever wonder why do you have write almost 50 lines of code to express such a common concept?
Implementing compare() and compareTo() methods was never fun. Luckily [Guava] provides an utility that makes comparison methods easier to write and more pleasing to the eye.
I’m starting a series of posts on Guava (Google’s core libraries). Today I am going to start with null, how to use it, and how to avoid it when necessary.
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