Functional Java by Example | Part 3 – Don’t Use Exceptions to Control Flow

This is part 3 of the series called “Functional Java by Example”. The example I’m evolving in each part of…

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X-Mas Musings – Too Many Paths. One Path Spec?

December is for many people a period of reflection or thought. So I decided to reflect upon last year’s things…

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X-Mas Musings – Eclipse to IntelliJ

December is for many people a period of reflection or thought. So I decided to reflect upon last year’s things…

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X-Mas Musings – Do Not Use Random Server Port in Grails Integration Tests

December is for many people a period of reflection or thought. So I decided to reflect upon last year’s things…

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Functional Java by Example | Part 2 – Tell a Story

This is part 2 of the series called “Functional Java by Example”. The example I’m evolving in each part of…

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Functional Java by Example | Part 1 – From Imperative to Declarative

Functional Programming (FP) is about avoiding reassigning variables, avoiding mutable data structures, avoiding state and favoring functions all-the-way. What can…

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Why is Spring’s Health Down, Down, Up, Up, Up and Down again?

Why Our new JavaScript client application regularly calls the /health endpoint of our Grails backend to determine on- of offline…

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Make Your Groovy Objects More Bullet-Proof

Groovy has the Immutable annotation which allows to create immutable classes, which is a prerequisite for creating value objects. Unfortunately,…

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Grails 3.3 Integration Testing with Spock Mocks

It is easy to use the Spock Framework, shipped with Grails, to mock or stub a collaborator (such as a…

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