Java developers from around the world are writing a book about a question that’s becoming impossible to ignore: how do we write software that’s good for both our projects and the planet? Sustainability for Java Developers: Towards an Understanding of …
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Testing Emails with Testcontainers and Mailpit
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.
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Spec-Driven Development with AI: A New Approach and a Journey into the Past
Table of Contents The Problem with Code-Centric DevelopmentRequirements as the Single Source of TruthThe Complete WorkflowEverything is Code, Everything is VersionedAI as the Consistency EngineThe Structure: Independent EpicsA Real Example: System Use Case SpecificationThe ResultsWhy This Works for Business ApplicationsGetting …
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How to Deploy a Vaadin Application as a WAR on Tomcat 11
Table of Contents Step 1: Download Tomcat 11Step 2: Create a New Vaadin ProjectStep 3: Adjust the pom.xmlStep 4: Update the Spring Boot Application ClassStep 5: Build the Application for ProductionStep 6: Deploy the WAR to TomcatConclusion If you want to …
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Securing Vaadin Applications with Microsoft Entra
Table of Contents Step 1: Create an Application in EntraCreate App RoleAssign UsersCreate Client SecretStep 2: Configure OAuth2 with Entra in our ApplicationAdd DependenciesConfigure the ApplicationEnable Entra SecurityConfigure Role PrefixRoles in ActionStep 3: Setup Karibu TestingSummary Many companies use Microsoft …
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Integrating Google Analytics With Vaadin Flow: A Step-By-Step Guide
Table of Contents PrerequisitesCreating the Analytics ComponentUsing the ComponentStep 1: Add To Main LayoutStep 2: Track Custom EventsHow It WorksBest PracticesCommon Use CasesConclusion Want to track how users interact with your Vaadin Flow application? Learn how to integrate Google Analytics …
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Browserless Testing of Vaadin Applications with Karibu Testing
About a testing framework that stands out for its ability to run browserless testing, offering several advantages over traditional end-to-end testing approaches, such as Selenium, Playwright, or Cypress.
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The Best Way to Handle Phone Numbers
Processing phone numbers seems complicated at first glance because of the many different formats.
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Foojay Podcast #53: JCON Report, Part 5 – CQRS, JOOQ, GraphQL, API, Vaadin, OpenRewrite, ErrorProne, Gateways, Proxies,…
In this episode you’ll hear Simon Martinelli, Nicolas Fränkel, Marcus Hellberg, Rick Ossendrijver, and Abdel Sghiouar.
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Foojay Podcast #46: JUG Switzerland
In this episode, Frank and the Foojay Podcast leave the European Union and step over the border of Switzerland, the country where the Red Cross was started, and many international institutions have their headquarters.
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Video: Spring Boot Testcontainers Support for Local Development
With Spring Boot 3.1, Testcontainers support for local development was added. This video will show you how this works and how to use it.