Spring120 articles

Table of Contents Which model to use?The ControllerThe Spam Detection ServiceRunning the service via DockerConclusion Believe it or not, it is possible to do Machine Learning in Java. In this article I go over how to implement a Spring Boot …

Testing email functionality is often painful. SMTP servers are external, tests become slow or flaky, and local setups differ from CI environments. As a result, many teams either mock the mail sender or skip proper email tests completely.

Table of Contents PrerequisitesStep 1: Create the project structureStep 2: Create the test infrastructureStep 3: Generate our first scenario testConclusion When we face software development, the biggest mistake is about delivering what the client wants. It sounds like a cliché, …

Table of Contents Key TerminologyWhy OpenTelemetry?Step-by-Step GuideTesting with Docker ComposeConclusionReferences In my previous article, I outlined a comprehensive list of features introduced in Spring Framework 7 and Spring Boot 4. In this series of articles, we will explore these features in …

Table of Contents Starting with Jakarta EE Doesn’t Have to be Slow  Meet Payara Starter: The Equivalent to Spring Initializr for Jakarta EEPayara Starter vs. Spring Initializr: Same Comfort, Different StackPayara Starter and Spring Initializr Side by SideStep-by-Step: Starting a Jakarta …

Table of Contents Why This MattersA Look Back at the Spring and Java/Jakarta EE RelationshipWhat This Means for Payara UsersExpanding Your Options With Spring and Payara Qube The recent releases of Spring Framework 7.0 and Spring Data 2025.1.0 mark an …

Learn Micrometer and Prometheus in Spring Boot by building a Kafka Burger Orders app that emits metrics. Step-by-step guide with code and takeaways.

Table of Contents What is API versioning?API Versioning In ActionImport the Project into your IntelliJ IDEAAnnotation-Based Approach In my previous article, I outlined a comprehensive list of features introduced in Spring Framework 7 and Spring Boot 4. In this series …

Table of Contents Finding usage of ThreadLocalThe TransactionSynchronizationManager classHow transactions use TransactionSynchronizationManagerWhat about Reactive transaction management?Discussion Two years ago, my friend José Paumard held the talk “Concurrent and Asynchronous Programming : Loom” at the Geneva Java User Group. In his …

Table of Contents The magic behind vector searchPrerequisitesTag your Atlas ClusterEmbeddings with Voyage AIPreparing the datasetMongoDB Atlas Vector Search (index and retrieval)Building the movie search appConfiguring the applicationThe document modelWire the request DTOCommunicating with Voyage AIThe EmbeddingServiceQuerying with Spring Data …