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Core Java
How to Use Java 8 Streams to Swiftly Replace Elements in a List
Imagine you have a list of items: List<String> books = Arrays.asList( "The Holy Cow: The Bovine Testament", "True Hip Hop",…
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DevOps
Get into Docker
Have you ever heard about Docker before? Most likely. If not, don’t worry, I’ll try to summarize it for you.…
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Core Java
Java Performance Tuning: Getting the Most Out of Your Garbage Collector
What’s going on under the hood of the JVM and how Garbage Collection affects Java performance? The performance tuning world…
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Enterprise Java
SELECT statements batch fetching with JDBC and Hibernate
Introduction Now that I covered Hibernate batch support for INSERT, UPDATE and DELETE statements, it’s time to analyze SELECT statements…
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Software Development
OptaPlanner – How fast is logging?
What’s the cost of trace/debug logging in production? What’s the performance cost of logging to a file? In these benchmarks,…
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Core Java
Don’t be Fooled by Generics and Backwards-Compatibility. Use Generic Generic Types
I’ve recently had a very interesting discussion with Sebastian Gruber from Ergon, a very early jOOQ customer, whom we’re in…
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Enterprise Java
Apache Mesos + Marathon and Java EE
Apache Mesos is an open-source cluster manager that provides efficient resource isolation and sharing across distributed applications or frameworks. Apache…
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DevOps
JavaOne Cloud, DevOps, Containers, Microservices etc. Track
Every year, for the past 19 years, JavaOne is the biggest and most awesome gathering of Java enthusiasts from around the world. JavaOne…
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Enterprise Java
Architecting Large Enterprise Java Projects – My Virtual JUG Session
I had the pleasure to be invited to the virtual JUG yesterday. It is a big honor for many reasons:…
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