Spring

Postgres: role “postgres” does not exist

less than 1 minute read

Fix FATAL: role “postgres” does not exist with Postgres.app on MacOs

Fix the GradleWorkerMain OutOfMemoryException

less than 1 minute read

Setting the memory size in Gradle to prevent OutOfMemoryExceptions

AWS Elastic Beanstalk Environment Properties not passed for Tomcat

1 minute read

Deploying apps to Elastic Beanstalk can bring surprises when using newer Tomcat versions

Spring Data JPA: Query result directly into DTO

3 minute read

One of the hidden gems of Spring Data JPA is the possibility to put your query results directly into a DTO instead of having it transformed by a mapper

Java: Default Spring Boot/Data JPA naming strategy

less than 1 minute read

Default Spring Naming Strategy class and the property key to configure it in Spring Boot.

Java: Load file from classpath in Spring Boot

2 minute read

How to load files from the classpath in Spring Boot using ResourceLoader (File vs InputStream).

Intellij Idea: Thymeleaf namespace unkown

less than 1 minute read

Add the Thymeleaf namespace (xmlns:th) and DOCTYPE so the IDE recognizes th: attributes.

Java: Spring Boot MVC Controller not called

1 minute read

Why controllers are not discovered and how to configure component scanning (scanBasePackages) in Spring Boot.

Java: Include properties files in your Spring config

1 minute read

Examples of configuring Spring to load properties files singly or as a list with overriding behavior.

Java: Sending mails with Spring

2 minute read

Spring configuration for JavaMailSenderImpl and a mail utility wrapper for sending plain text emails.