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Core Java
Some more unit test tips
In my previous post I showed some tips on unit testing JavaBeans. In this blog entry I will give two…
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Core Java
Custom JSR 303 Bean Validation constraints for the JSR 310 New Date/Time API
With JSR 310 Java 8 finally brought us a decent date and time API. For those of you that are…
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Enterprise Java
2 Ways of Passing Properties / Parameters in Java EE 7 Batch
When it comes to the Java EE 7 Batch Processing facility, there are 2 ways in passing properties / parameters…
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DevOps
Using rlimit (And Why You Should)
I’ve been going through some old notes and came across a reminder of setrlimit(2). This is a C system call…
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Enterprise Java
Customizing HttpMessageConverters with Spring Boot and Spring MVC
Exposing a REST based endpoint for a Spring Boot application or for that matter a straight Spring MVC application is…
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Enterprise Java
Using Infinispan as a persistency solution
Cross-posted from https://vaadin.com/blog/-/blogs/using-infinispan-as-a-persistency-solution. Thanks Fredrik and Matti for your permission! Various RDBMSs are the de-facto standard for persistency. Using them is…
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Core Java
Using Gradle to Build & Apply AST Transformations
Recently, I wanted to both build and apply local ast transformations in a Gradle project. While I could find several…
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Software Development
An Inconvenient Latency
Overview Vendors typically publish numbers they are happy with, and avoid telling you about a product’s weaknesses. However, behind the…
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Software Development
R: Calculating rolling or moving averages
I’ve been playing around with some time series data in R and since there’s a bit of variation between consecutive…
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