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:
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>> JDK 14: First Release Candidate [mail.openjdk.java.net]
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>> Principles to Handle Thousands of Connections in Java Using Netty [dzone.com]
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>> JVM Ecosystem Report 2020: 36% of developers switched from Oracle JDK to an alternate OpenJDK distribution, over the last year [snyk.io]
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>> Parallel Collection Processing: Leveraging Batching (2/3) [4comprehension.com]
Webinars and presentations:
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>> What's New in Pivotal Spring Cloud Products [infoq.com]
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>> Does Java Need Inline Types? What Project Valhalla Can Bring to Java [infoq.com]
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>> Mutation Testing: Case Studies on Spring Boot APIs [infoq.com]
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>> Oleg Šelajev on ZeroTurnaround, GraalVM, the vJUG and so much more [spring.io]
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>> Making Translytical Applications Reactive: Lessons Learned Implementing an R2DBC Driver for SAP HANA [infoq.com]
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>> Platform Health Assessment at Department of Homeland Security Citizenship and Immigration Services [infoq.com]
Time to upgrade:
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>> 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]
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>> Spring Cloud Data Flow 2.4.0 Released [spring.io]
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>> 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:
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>> HTTP methods: Idempotency and Safety [mscharhag.com]
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>> Introduction to stream processing [blog.frankel.ch]
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>> 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:
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>> Digitally Transformed: Becoming a Technology Product Company [bravenewgeek.com]
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>> Improving Feedback Flows in Organizations with ‘Complete Peer Feedback' [phauer.com]
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>> Sprint Goals! [blog.scottlogic.com]
4. Comics
And my favorite Dilberts of the week: