All posts in 'Java'

Hacking with Spring Boot 2.3

03-Jul-20

A couple of weeks ago, I received a paper copy of “Hacking with Spring Boot 2.3 – Reactive Edition” by Greg L. Turnquist. Greg sent this copy to me free of charge for a review. Thanks for that! I’m happy about the opportunity to read a new Spring Boot book after I published one myself […]

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Spring Data Neo4j, Neo4j-OGM and OSIV

03-Feb-20

TL;DR: Don’t use Open Session in View with a Neo4j-Cluster If you use Spring Data Neo4j and Neo4j-OGM in your Spring Boot application connectect against a Neo4j cluster (via bolt+routing://, neo4j:// or multiple bolt-uris), configure spring.data.neo4j.open-in-view explicitly to false like this: spring.data.neo4j.open-in-view=false What is Open Session in View? Vlad Mihalcea has written extensive amounts about […]

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Query all the things

06-Nov-19

Over the last weekend, I had some time on my hands and revisited my biking application: https://biking.michael-simons.eu. That application turned 10 this year, started as a Sinatra based Ruby application in 2009 and helped me a lot from the late 2013 and early 2014 in my career. Back then, I was using Spring for a […]

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Never not learning…

05-Jul-19

Sometimes my teammate Gerrit teases me “Don’t you know this and that as a Java Champion?”… Of course I don’t. Honestly, the older I get, the better I know that I know nothing. This week has been interesting. At first, I stumbled upon something like this A shortcut to System properties public interface Stuff { […]

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GraalVM on macOS

27-Mar-19

I have been doing some research with GraalVM and I noticed that RC14 brings an Info.plist inside it’s contents folder. That’s a nice thing to have, as it automatically registers it if you unzip it into /Library/Java/JavaVirtualMachines as a JDK 8 implementation, but a nasty surprise when using /usr/libexec/java_home -v1.8 to configure your JAVA_HOME, which […]

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