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Reducing the frequency of major GC pauses

This post will discuss a technique to reduce the burden garbage collection pauses put on the latency of your application. As I have written couple of years ago, disabling garbage collection ...
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Dead simple configuration

Whole frameworks have been written with the purpose of handling the configuration of your application. I prefer a simpler way. If by configuration we mean “everything that is likely ...
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Optional and Objects: Null Pointer Saviours!

No one loves Null Pointer Exceptions ! Is there a way we can get rid of them ? Maybe . . .                    Couple of techniques have ...
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JUnit in a Nutshell: Yet Another JUnit Tutorial

Why Another JUnit Tutorial? JUnit seems to be the most popular testing tool for developers within the Java world. So it is no wonder that there have been written some good books about ...
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Tips for (unit testing) JavaBeans

If you’re writing Java code chances are you’re writing at least a few classes that adhere to the JavaBean conventions, i.e., classes that have private properties with public getter ...
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Eliminating Development Redeploys using Gradle

For service development, my team recently moved away from Grails to the Dropwizard framework. One of the things I really missed from the Grails stack, though, was auto-reloading: any ...
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Built-in Fake Objects

While mock objects are perfect instruments for unit testing, mocking through mock frameworks may turn your unit tests into an unmaintainable mess. The root cause of this complexity ...
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Hazelcast’s MapLoader pitfalls

One of the core data structures provided by Hazelcast is IMap<K, V> extendingjava.util.concurrent.ConcurrentMap – which is basically a distributed map, often used as cache. ...
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Asynchronous SQL Execution with jOOQ and Java 8’s CompletableFuture

Reactive programming is the new buzzword, which essentially just means asynchronous programming or messaging. Fact is that functional syntax greatly helps with structuring asynchronous ...
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ChoiceFormat: Numeric Range Formatting

The Javadoc for the ChoiceFormat class states that ChoiceFormat “allows you to attach a format to a range of numbers” and is “generally used in a MessageFormat for ...
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