Java
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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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HawtIO on JBoss Wildfly 8.1
HawtIO gives awesome eye candy to your JVM based middleware. It’s a unifying console for applications that would otherwise 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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Introducing the JBoss BPM Suite installer
This week we want to introduce you to the rather unknown installer component that is delivered with the JBoss BRMS…
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Adding Custom Claims to the SAML Response – (How to Write a Custom Claim Handler for WSO2 Identity Server)
Overview The latest release of WSO2 Identity Server (version 5.0.0), is armed with an “application authentication framework” which provides lot…
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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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Java private, protected, public and default
You are a Java programmer, so you know what I am talking about. public modifiers make a method or field…
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Avoiding Null Checks In Java
One of the worst nightmares for java developers ( from junior to experts ) is null object reference checking. I’m…
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