Tag Archives: Java

GraphQL for Java Developers: What You Actually Need to Know

Posted on August 12, 2022 by ronaldpringadi

GraphQL has been on the Java back-end radar for a while, mostly as something the front-end team kept bringing up. In 2022 that shifted. Spring for GraphQL 1.0 became generally available in May. The official Spring team now provides first-party … Continue reading →

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Apache Kafka vs RabbitMQ for Messaging in Java (and Where ActiveMQ Fits In)

Posted on August 9, 2022 by ronaldpringadi

If you’re standing in front of a whiteboard in Java land and someone has just drawn a box labelled “message queue,” you’re probably going to argue about Apache Kafka and RabbitMQ for the next forty minutes. They’ve become the default … Continue reading →

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Java Web Servers Compared: Tomcat, JBoss EAP, WildFly, and Spring Boot

Posted on April 12, 2022 by ronaldpringadi

If you’ve been writing Java for the web at any point in the last two decades, you’ve had to pick a web server or application server at least once. The choices haven’t changed much in name — Tomcat, JBoss, WildFly, … Continue reading →

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Starting a Spring Boot API Microservice From Scratch With Spring Initializr

Posted on September 15, 2021 by ronaldpringadi

The fastest way to get a new Java microservice off the ground is also the most boring one, and that’s a compliment. You go to start.spring.io, click a few checkboxes, download a zip, and you have a runnable Hypertext Transfer … Continue reading →

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Knowing your exception class name

Posted on May 25, 2017 by ronaldpringadi

You’re staring at a generic catch (Exception e) and you don’t know which actual exception is being thrown. The trick is to log the runtime class so you can replace the generic catch with a specific one: 12345} catch (Exception … Continue reading →

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Apache Lucene: The Search Engine Hiding Inside Half the Internet

Posted on July 21, 2016 by ronaldpringadi

If you’ve ever used Elasticsearch, Solr, or even some features in big platforms like Twitter or LinkedIn, chances are you’ve been touching Apache Lucene without knowing it. It’s the quiet workhorse — a Java library that does one thing extraordinarily … Continue reading →

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