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Guava Splitter vs StringUtils

So I recently wrote a post about good old reliable Apache Commons StringUtils, which provoked a couple of comments, one of which was that Google Guava provides better mechanisms for ...
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Google Guava BloomFilter

When the Guava project released version 11.0, one of the new additions was the BloomFilter class. A BloomFilter is a unique data-structure used to indicate if an element is contained ...
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Busting PermGen Myths

In my latest post I explained the reasons that can cause the java.lang.OutOfMemoryError: PermGen space crashes. Now it is time to talk about possible solutions to the problem. Or, ...
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What is a PermGen leak?

What follows is a practical introduction to a specific type of memory problems in Java applications. Namely – we will analyze the errors that cause the java.lang.OutOfMemoryError: ...
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Using Cryptography in Java Applications

This post describes how to use the Java Cryptography Architecture (JCA) that allows you to use cryptographic services in your applications. Java Cryptography Architecture Services The ...
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How much memory do I need

What is retained heap? How much memory will I need? This is a question you might have asked yourself (or others) when building a solution, creating a data structure or choosing an algorithm. ...
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When using direct memory can be faster

Overview Using direct memory is no guarantee of improving performance.  Given it adds complexity, it should be avoided unless you have a compelling reason to use it. This excellent ...
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Type-safe Empty Collections in Java

I have blogged before on the utility of the Java Collections class and have specifically blogged on Using Collections Methods emptyList(), emptyMap(), and emptySet(). In this post, ...
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Working Efficiently with JUnit in Eclipse

Recently I was dragged into a discussion1 with some test infected2 fellows about how we use JUnit within the Eclipse IDE. Surprisingly the conversation brought up some ‘tips and tricks’ ...
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Google Guava EventBus for Event Programming

 It’s a given in any software application there are objects that need to share information in order to get work done. In Java applications, one way of achieving information sharing ...
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