Java Ecosystem Survey 2021: Adoption of Java Versions, IDEs, Build Tools, and Frameworks
The 2021 Snyk JVM Ecosystem Report, based on responses from over 2,000 Java developers, reveals that Java 11 now dominates production use, while AdoptOpenJDK remains popular, IntelliJ IDEA leads IDE preference, Maven is the primary build tool, and Spring Boot continues to dominate the framework landscape.
Author: Bai Kaishui (Source: OSC Open Source Community, ID: oschina2013). The Snyk JVM Ecosystem Report 2021, conducted over six weeks in February‑March 2021, collected responses from more than 2,000 Java developers.
The survey shows that 44.1% of respondents use the free AdoptOpenJDK distribution in production, while Oracle’s OpenJDK builds account for 28% and commercial Oracle JDK for 23%.
61.5% of developers now run Java 11 in production, and nearly 12% have upgraded to the latest version available during the survey period (Java 15). However, about half of Java 11 users still retain Java 8 in their production stacks.
Java remains the most popular JVM language, with over 90% of developers using it; Kotlin follows at 17.7%.
IntelliJ IDEA is the dominant IDE, used by more than 70% of JVM developers, with significant growth in Visual Studio Code and Apache NetBeans adoption; over half of the JVM community consider using multiple IDEs.
Maven continues to be the leading build system, used by over 76% of developers, while Gradle holds the second place with a 38.1% share.
Spring remains the leading framework in the Java ecosystem: Spring Boot and Spring MVC are the most widely used, with more than half of the market using Spring Boot and roughly one‑third using Spring MVC.
Full report: https://snyk.io/jvm-ecosystem-report-2021/
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