Java Weekly, Issue 320

1. Spring and Java

>> Java 14 Feature Spotlight: Records [infoq.com]

A deep dive into the records preview feature with Java Language Architect Brian Goetz.

>> Multitenancy Applications with Spring Boot and Flyway [reflectoring.io]

A basic example of how to bind an incoming request to a tenant and its data source, with practical tips on managing multi-tenant database migrations.

>> How to map a PostgreSQL ARRAY to a Java List with JPA and Hibernate [vladmihalcea.com]

You’ll need to update to version 2.9 of the Hibernate Types project to take advantage of this enhancement.

Also worth reading:

• >> JDK 14: First Release Candidate [mail.openjdk.java.net]

• >> Principles to Handle Thousands of Connections in Java Using Netty [dzone.com]

• >> JVM Ecosystem Report 2020: 36% of developers switched from Oracle JDK to an alternate OpenJDK distribution, over the last year [snyk.io]

• >> Parallel Collection Processing: Leveraging Batching (2/3) [4comprehension.com]

Webinars and presentations:

• >> What’s New in Pivotal Spring Cloud Products [infoq.com]

• >> Does Java Need Inline Types? What Project Valhalla Can Bring to Java [infoq.com]

• >> Mutation Testing: Case Studies on Spring Boot APIs [infoq.com]

• >> Oleg Šelajev on ZeroTurnaround, GraalVM, the vJUG and so much more [spring.io]

• >> Making Translytical Applications Reactive: Lessons Learned Implementing an R2DBC Driver for SAP HANA [infoq.com]

• >> Platform Health Assessment at Department of Homeland Security Citizenship and Immigration Services [infoq.com]

Time to upgrade:

• >> Spring Security 5.2.2, 5.1.8 and 5.0.14 Released [spring.io] and >> Spring Security 5.3.0.RC1 Released [spring.io] and >> Spring Security 4.2.14 Released [spring.io]

• >> Spring Cloud Data Flow 2.4.0 Released [spring.io]

• >> Spring Session Dragonfruit-M1, Corn-SR1 and Bean-SR9 Released [spring.io]

2. Technical

>> TDD Classic State Based UI [blog.code-cop.org]

A practical application of TDD to heavyweight, state-based UI frameworks, using a Java Swing example.

Also worth reading:

• >> HTTP methods: Idempotency and Safety [mscharhag.com]

• >> Introduction to stream processing [blog.frankel.ch]

• >> Embrace your Obsessions! [blog.scottlogic.com]

3. Musings

>> The Laboring Strategist, A Free-Agent Anti-Pattern (And How to Fix) [daedtech.com]

A intro to the certified Solo Content Marketer and its parallels to the freelance software engineer who fancies himself a consultant.

Also worth reading:

• >> Digitally Transformed: Becoming a Technology Product Company [bravenewgeek.com]

• >> Improving Feedback Flows in Organizations with ‘Complete Peer Feedback’ [phauer.com]

• >> Sprint Goals! [blog.scottlogic.com]

4. Comics

And my favorite Dilberts of the week:

>> Cancelled Presentation [dilbert.com]

>> Slide Deck Too Well Designed [dilbert.com]

>> Making The World A Better Place [dilbert.com]

5. Pick of the Week

>> You can have two Big Things, but not three [asmartbear.com]

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