Spring Boot Backend Digest

Open Liberty enables zero migration – updating runtimes/frameworks for security fixes and features without altering app code.

Key benefits for...

Fresh 2026 guide on JWT with Spring Security:

• Robust API authentication for Spring Boot apps using JSON Web Tokens
• Hands-on from setup to best practices
• Ideal for securing modern APIs professionally

Spring AI Maturation

• 🔥 Spring Boot 4 Integrates Spring AI 2.0: Spring Boot 4 officially matures the Spring AI 2.0 ecosystem, bringing it out of...

• Spring Boot 4 officially matures Spring AI 2.0 ecosystem, shifting from experimental to core framework.
• Treats AI models as integral components.
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Elevate your Spring Boot observability with this pro guide:

• Under-the-hood mechanics: Understand how Spring Boot logging works
• Log levels: Know...

Most Spring Boot projects don't fail at the start - they fail after months of bad design decisions. This breakdown of hidden mistakes is essential for enterprise-scale maintainability and scalability.

Zaptilo Spring Boot starter auto-configures a service bean you can @Autowired anywhere—send text, media, and template messages with one line of code. Perfect for quick WhatsApp Business API integration in Java apps.

Practical persistent memory for Spring AI agents: Use AutoMemoryTools for durable, file-based storage across sessions, complementing ChatMemory's...

Java Ecosystem Releases

• 🔥 TornadoVM 4.0 GA: GA release of TornadoVM 4.0 includes bug fixes, dependency upgrades, new hardware backend for Apple...

Hands-on OpenTelemetry setup for Spring Boot observability:

• Use the OTel Java agent to instrument your app
• Generate traces and metrics automatically
• Visualize data in SigNoz for quick insights

Boost your production monitoring effortlessly.

Essential updates for backend devs:

• Tomcat 11.0.21/10.1.54/9.0.117 fix NIO/TLS flushing and HTTP/2 errors
• Log4j 2.25.4 resolves layout...

Key techniques for PostgreSQL JSONB in Spring Data JPA apps:

• Map JSONB columns in entities using Hibernate 6's @JdbcTypeCode or legacy methods
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Okta's new guide teaches how to generate a JWK and convert it to PEM—essential for secure setups. Pair it with the Okta Spring Boot Starter project for seamless Java web app authentication.

Core patterns for scalable Spring Boot microservices:

• Synchronous (REST request-response): Direct interactions with defined...

Scalable Microservices Projects

• 🔥 Airline Booking System Course: Full course builds 11 Spring Boot microservices with Kafka choreography saga,...

Level up from CRUD apps to senior-level microservices with this hands-on course building a real GDS like Amadeus/Sabre:

• 11 Spring Boot services...

Modern Java transforms Spring Boot for high-performance, production-ready apps:

• Records eliminate DTO boilerplate (constructors, getters,...

AI code review for Java catches SQL injections, null pointer exceptions, resource leaks, and Spring Boot misconfigurations with 20+ security rules. Essential for secure web apps.

• Thread exhaustion from blocking requests cripples high-scale apps
• GC pressure builds from too many objects
• JSON serialization overhead and DB...

• Minimize changes for higher success in OTel adoption—keep existing JMX setups.
• Use JMX Metric Scraper JAR (Docker-friendly) to poll MBeans and...