Spring Framework User Survey Report 2021

This report presents the findings from the 2021 Spring Framework User Survey, which aimed to assess the impact of the Spring framework on testing practices and code quality among Java developers. Conducted by Diffblue in collaboration with Vanson Bourne, the survey included 450 Java developers, primarily from the US and UK. Key findings indicate a strong correlation between the use of Spring/Spring Boot and improved testing practices. Notably, 86% of respondents utilize Spring/Spring Boot, with 96% reporting benefits from its use. The report details that Spring users dedicate more time to unit testing compared to non-Spring users and report higher code coverage. Additionally, it highlights the demographic breakdown of respondents and their job roles, emphasizing the prevalence of Spring framework users. The report is structured into three parts: general preferences, comparative analysis of testing practices, and a discussion on code quality metrics, providing a comprehensive view of the current landscape among Spring framework users.