grails-core

Comprehensive guide for current Grails development, covering web applications, REST APIs, GORM, controllers, services, views, plugins, and testing with Spock and Geb

Expert guide for Groovy 5 development, covering concise syntax, closures, DSLs, metaprogramming, static compilation, and integration with Java 21 and Grails

Guide for developing on the Java 21 baseline, including modern features, best practices, and integration with Groovy/Grails projects

Guide for upgrading Grails applications from Grails 7.x to Grails 8, covering Java 21, Spring Boot 4.1, Spring Framework 7, dependency management, Micronaut, Jackson 3, Hibernate 7, TagLibs, testing, content negotiation, and validation behavior changes

Guide for working in the grails-data-hibernate7 module, especially Hibernate 7 domain binding, mapping migration, generators, and integration tests. Use this when changing code or tests under grails-data-hibernate7.

Guide for running, interpreting, and fixing code style and analysis violations in grails-core using GrailsCodeStylePlugin, GrailsCodeAnalysisPlugin, and GrailsViolationAggregationPlugin — covering CodeNarc, Checkstyle, PMD, SpotBugs, and JaCoCo

Guide for running, reviewing, and fixing test failures across grails-core modules using Gradle test reports