Learn what causes the Spring Boot error “Failed to configure a DataSource” and how to resolve it
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Eclipse Error: web.xml is missing and failOnMissingWebXml is set to true
Filed under IDE, Jakarta EE
Learn how to fix the eclipse error: web.xml is missing and failOnMissingWebXml is set to true
Difference Between Stub, Mock, and Spy in the Spock Framework
Understand the difference between Stubs, Mocks and Spies in Spock and how they can help to test an application
Using the @Singular Annotation with Lombok Builders
Filed under Java
Learn how to use the @Singular annotation to create convenient builders with Lombok
Guide to the JDBC ResultSet Interface
Filed under Persistence
Learn how to use the JDBC ResultSet API for retrieving and updating data
Introduction to Spring Cloud OpenFeign
Filed under HTTP Client-Side, Spring Cloud
Feign makes writing web service clients easier with pluggable annotation support, which includes Feign annotations and JAX-RS annotations.
Adding a Copyright License Header for Java Source Files in IntelliJ IDEA
Filed under IDE
Learn how to configure IntelliJ IDEA to add license headers automatically to your project files.
Filtering a Java Collection by a List
Filed under Java Collections
Learn different ways to filter a Collection in Java based on the values of another list
Combining JPA And/Or Criteria Predicates
Filed under JPA
Learn how to use the JPA Criteria API to implement use cases where we needed to combine AND/OR predicates.