Java Weekly, Issue 398

1. Spring and Java

>> What's New in Java 16 [infoq.com]

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 [openjdk.java.net]

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

>> Panache – Active Record Pattern [thorben-janssen.com]

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:

• >> Introducing JDKMon: A New Tool to Detect and Update JDKs [infoq.com]
• >> A common Pitfall of Spring Boot's RestTemplate [steadybit.com]
• >> Keyset Pagination with JPA and Hibernate [vladmihalcea.com]
• >> JEP 400: UTF-8 by Default [openjdk.java.net]
• >> API first services with Spring Boot [blog.codecentric.de]
• >> 10 places you don’t need to use the mouse in IntelliJ IDEA [blog.jetbrains.com]
• >> Observing the Reliability of your Java Apps and Services with Spring Boot, Micrometer, Prometheus & Reliably [dev.to]

Webinars and presentations:

• >> Project Loom: Modern Scalable Concurrency for the Java Platform [inside.java]
• >> A Bootiful Podcast: Microsoft's Sean Li on Azure, Spring Boot, Azure Spring Cloud, Spring integrations and more [spring.io]
• >> The Java developer experience on Azure with Visual Studio Code [youtube.com]

Time to upgrade:

• >> Hibernate ORM 6.0.0.Alpha9 released [in.relation.to]

2. Technical & Musings

>> Gateway Pattern [martinfowler.com]

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 [kubernetes.io]

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

Also worth reading:

• >> Rust's Vector [blog.frankel.ch]
• >> The RedMonk Programming Language Rankings: June 2021 [redmonk.com]
• >> Inject Quarkus list types with @ConfigProperty [blog.sebastian-daschner.com]
• >> AWS security case study: Unprotected logs [advancedweb.hu]
• >> Overview of hardened container base images [blog.codecentric.de]

3. Comics

And my favorite Dilberts of the week:

>> Monitoring Internal Messages [dilbert.com]

>> Tech Support Is Last Hope [dilbert.com]

>> Lanyards And Hugs [dilbert.com]

4. Pick of the Week

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