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Enterprise Java
HTTP methods: Idempotency and Safety
Idempotency and safety are properties of HTTP methods. The HTTP RFC defines these properties and tells us which HTTP methods…
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Core Java
Validating code and architecture constraints with ArchUnit
Introduction ArchUnit is a library for checking Java code against a set of self defined code and architecture constraints. These…
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Enterprise Java
Creating an API Gateway with Zuul and Spring Boot
Introduction When working with micro services it is common to have unified access-point to your system (also called API Gateway).…
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Enterprise Java
Method parameter validation with Spring and JSR 303
Spring provides an easy way to validate method parameters using JSR 303 bean validation. In this post we will see…
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Enterprise Java
Collecting application metrics with Micrometer
What is Micrometer? Micrometer is a simple facade for collecting metrics inside Java applications in a vendor neutral way. You…
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Enterprise Java
Java EE MVC: Handling form validation
In this post we will have a look on form validation in Java EE MVC. Java EE MVC integrates with…
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Core Java
Using Java Stream summary statistics
Streams of primitive types (IntStream, etc.) provide a summaryStatistics() method that can be used to get multiple statistical properties of…
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Core Java
Templating with Rocker
In this post we will have a quick look at Rocker, a statically typed and fast Java 8 template engine.…
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Enterprise Java
Java EE 8 MVC: Global exception handling
In the previous previous posts we learned about various ways to access request information (e.g. query or path parameters) in…
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