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Java Weekly, Issue 618
2025-10-31 10:01 UTC by baeldung

1. Spring and Java

>> Modularizing Spring Boot [spring.io]

Boot 4 splits its monolithic auto-configuration into focused modules. That gives us a leaner runtime footprint, faster startup scans, and a cleaner IDE experience. Very cool.

>> Try Out JEP 401 Value Classes and Objects [inside.java]

Value classes let immutable types drop identity so the JVM can flatten data and cut memory loads.

You can enable preview and try Objects.hasIdentity, and see arrays of LocalDate run quite a bit faster in some scenarios. Good stuff.

>> Filtering Exceptions via try [javaspecialists.eu]

Concise and practical – a neat trick is to rethrow the cause and let try/catch classify it. Worth trying out.

Also worth reading:

Webinars and presentations:

Time to upgrade:

2. Technical & Musings

>> Beyond Benchmarks: Testing Open-Source LLMs in Multi-Agent Workflows [blog.scottlogic.com]

A look at how to evaluate open-source LLMs inside the actual multi-agent workflow. It’s a practical blueprint for deciding if an OSS stack can replace proprietary chatbots.

Also worth reading:

3. Pick of the Week

>> Hard work vs. Long work [seths.blog]

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