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Get started with Spring 5 and Spring Boot 2, through the Learn Spring course:


1. Spring and Java

>> What's New in Java 16 []

An overview of new features in Java 16: records, pattern matching for instanceof, sealed classes, and more!

>> JEP 416: Reimplement Core Reflection with Method Handles []

Reimplementing the method, constructor, and field-related reflection implementations with MethodHandles – no changes in API, though.

>> Panache – Active Record Pattern []

An entity object encapsulating data and database operations – an in-depth guide on how to implement the active record pattern with Panache.

Also worth reading:

Webinars and presentations:

Time to upgrade:

2. Technical & Musings

>> Gateway Pattern []

How to use the Gateway Pattern to encapsulate the access to an external system or resource.

>> New in Kubernetes v1.22: alpha support for using swap memory []

K8S 1.22 comes with experimental support for swap memory usage for workloads on a per-node basis.

Also worth reading:

3. Comics

And my favorite Dilberts of the week:

>> Monitoring Internal Messages []

>> Tech Support Is Last Hope []

>> Lanyards And Hugs []

4. Pick of the Week

>> I hate MVPs. So do your customers. Make it SLC instead. []

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Java Weekly, Issue 399
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Java Weekly, Issue 397

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