Core Java
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Java’s Volatile Modifier
A while ago I wrote a Java servlet Filter that loads configuration in its init function (based on a parameter…
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Default Methods: Java 8’s Unsung Heros
A few weeks ago I wrote a blog saying that developers learn new languages because they’re cool. I still stand…
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Using IntelliJ bookmarks
This is a quick post about IntelliJ’s nice bookmark feature. IntelliJ gives you the option to bookmark single lines of…
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Getting A List of Available Cryptographic Algorithms
How do you learn what cryptographic algorithms are available to you? The Java spec names several required ciphers, digests, etc.,…
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The 10 Most Annoying Things Coming Back to Java After Some Days of Scala
So, I’m experimenting with Scala because I want to write a parser, and the Scala Parsers API seems like a…
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Why I distrust wildcards and why we need them anyway
In any programming language that combines subtype polymorphism (object orientation) with parametric polymorphism (generics), the question ofvariance arises. Suppose I have…
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Testing code for excessively large inputs
When writing unit tests we mostly focus on business correctness. We do our best to exercise happy path and all…
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How to Load Resources from Classpath in Java with Example
Classpath in Java is not only used to load .class files, but also can be used to load resources e.g.…
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The lepidopterist’s curse: Playing with java.time
Pop quiz: What will be the output of this little program? …
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