Learn how to send emails with single and multiple attachments in Java.
Here's what I've written (so far):
How to Remove a Prefix From Strings in Groovy
Filed under Programming
Learn how to remove the prefix from a string using Groovy.
Java Weekly, Issue 351
Filed under Weekly Review
Java 15 goes GA, A collection of Spring/JPA topics, creating highly scalable distributed systems, and good looking GitHub profiles!
Differences in @Valid and @Validated Annotations in Spring
Filed under Spring, Spring Web
Explore the key differences between @Valid and @Validated annotations.
Arrays.asList vs new ArrayList(Arrays.asList())
Filed under Java Collections
They may look very similar but they aren’t. Let’s explore why.
How to Implement Hibernate in an AWS Lambda Function in Java
Filed under Cloud, Persistence
Look at the challenges of using any RDBMS within a Lambda, and how and when Hibernate can be useful
Java Weekly, Issue 350
Filed under Weekly Review
GC enhancements in Java 15, JPA lifecycle events, Docker and Spring Boot, Distributed tracing, and perks of hiring junior engineers: packed in a diverse weekly!
Keycloak User Self-Registration
Filed under Spring Web
Learn how to enable user self-registration in Keycloak.
SSH Connection With Java
Learn how to establish an SSH connection with Java using two of the available Java libraries – JSch and Apache Mina SSHD.
Rolling Back Migrations with Flyway
Filed under Persistence
Learn how to safely roll back migrations using Flyway.
Dates in OpenAPI Files
Filed under Spring, Spring Web
Let’s see how to declare dates in an OpenAPI file, in this case, implemented with Swagger.
IllegalMonitorStateException in Java
Filed under Java
If you want to learn why your code keeps throwing this exception, this article is for you.
Custom User Attributes with Keycloak
Filed under Spring
Learn how to add extra attributes to a user in Keycloak.
Java Weekly, Issue 349
Filed under Weekly Review
Faster startup for JVM, mind-boggling Java puzzlers, customizing JPA repositories, Slicing Boot tests, and professional video calls: All in a very diverse weekly!
Hiding Endpoints From Swagger Documentation in Spring Boot
Let’s have a look at how we can hide endpoints from Swagger API documentation.
Tips for Creating Efficient Docker Images
Filed under DevOps
Learn how to write efficient Docker images and the reasons behind each recommendation
Assert Two Lists for Equality Ignoring Order in Java
Filed under Java Collections, Testing
Learn how to make order agnostic comparison of lists when writing unit tests.
Guide to ArrayStoreException
Filed under Java
Learn the cause of ArrayStoreException, how to handle it, and best practices for avoiding it
Testing Quarkus Applications
Learn how to write clean and powerful unit and integration tests for Quarkus applications.
Largest Power of 2 That Is Less Than the Given Number
Filed under Algorithms
Learn how to find the largest power of 2 that is less than an input number.
