IntelliJ IDEA is JetBrains' flagship Java/Kotlin IDE, released in 2000 from Prague, Czech Republic, renowned for smart code assistance, powerful refactoring, and deep framework support, serving 2M+ developers.
Gradle is an open-source JVM build automation tool created by Hans Dockter in 2007. As the default build system for Android, it powers 20M+ app builds worldwide with Groovy/Kotlin DSL and incremental builds.
Jenkins originated from the Hudson project in 2005 and became independent in 2011. It is the world's most popular open-source CI/CD server with a 1000+ plugin ecosystem and Pipeline as Code.
Spring is the de facto standard framework for Java enterprise application development, offering core capabilities like IoC, AOP, MVC, and Spring Boot, with a vast ecosystem and a mainstream choice for building microservices and cloud-native applications.
Maven is an open-source Java build and dependency management tool released by Apache in 2002, known for POM and convention over configuration, with Maven Central hosting millions of artifacts and 1B+ monthly downloads.
Eclipse is an open source Java IDE released in 2001 by the Eclipse Foundation, with a plugin platform providing full Java development and 1,800+ Marketplace solutions for enterprise Java teams.
Liferay is an enterprise digital experience platform (DXP) founded in 2004 in Diamond Bar, California, USA. Its open-source community edition is free, and one platform integrates CMS, DAM, Commerce, Search, personalization and AI. Rated 4.6/5.0 on Gartner Peer Insights with a 360+ partner network, it suits large enterprise portals and multisite scenarios.