Learn how to use a prefix for environment variables with Spring Boot.
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baeldung
This is the standard author on the site. Most articles are published by individual authors, with their own profiles, but when multiple people have a strong contribution, we publish collectively here.
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Java Weekly, Issue 407
Filed under Weekly Review
Faster Maven builds (always good), how SREs scale in an org, and a cool Datadog feature. A solid week overall.
Get a Field’s Annotations Using Reflection
Filed under Core Java
Learn how to get a field’s annotations and how the retention meta-annotation works
Update the Value Associated With a Key in a HashMap
Filed under Java Map
Learn several methods for updating the value associated with a HashMap key using core Java.
Trusting All Certificates in OkHttp
Filed under HTTP Client-Side, Security
Learn how to create an OkHttpClient and configure it to trust all certificates — not the best practice in production, but you may need it from time to time during development or testing.
Cassandra Frozen Keyword
Filed under NoSQL
Learn about the frozen keyword in Apache Cassandra and how to create frozen collections and user-defined types.
Generate a WAR File in Maven
Filed under Maven
In this tutorial, we’re going to consider the usage of the Maven WAR plugin with a Java EE application.
Hibernate’s “Object References an Unsaved Transient Instance” Error
Filed under Persistence
Learn how to define a proper CascadeType to solve the “org.hibernate.TransientObjectException: object references an unsaved transient instance” error
Java Weekly, Issue 406
Filed under Weekly Review
ZGC is even better in Java 17, faster Maven builds, BGP and Facebook, pattern matching future, and economy of code ownership!