Support for IntelliJ IDEA 2022.1

Diffblue is delighted to announce that we now support IntelliJ IDEA 2022.1.

We now support IntelliJ IDEA 2022.1 and IntelliJ IDEA 2021.3 only. Please upgrade from IntelliJ IDEA 2021.2 so you can get the maximum benefit from Diffblue Cover.

Gradle minimum version now 4.9+

Our support for Gradle has moved to a minimum version of 4.9+, please upgrade your version if necessary.

Developer Edition trial available

We are delighted to now offer a 14-day trial version of our Developer Edition, which includes the Diffblue Cover CLI, as part of our new licensing option. We're really excited that you can now "try before you buy"! To download your trial of Diffblue Cover Developer Edition, please click here. Full information on all our options is also available here.

How do I automatically maintain all of these tests?

Use Diffblue Cover on any CI platform to automatically update your unit tests and catch regressions for every commit - watch this video to learn more.


  • IntelliJ Plugin: Cover now supports offline license activation for Enterprise licenses. [Ref: TG-16794]

  • IntelliJ Plugin: Cover now supports IntelliJ IDEA Community Edition 2022.1 and IntelliJ IDEA Ultimate 2022.1. [Ref: TG-16521]

Resolved Issues

  • Resolved an issue which caused Cover to not write tests for Java 17 projects using Gradle and Gradle projects with subprojects defined. [Ref: TG-16878]

  • Resolved an issue which caused Cover to not get an instance of a singleton stored in a private field of an inner class. [Ref: TG-16857]

  • Resolved an issue which caused Cover to not find appropriate Strings to satisfy a reference equality. [Ref: TG-16856]

  • IntelliJ Plugin: Resolved an issue which caused the 'offline license guide' link, on the 'View License Information' window, to link to a non-existent page. [Ref: TG-16818]

Known Issues

  • CLI: The command dcover clean --failing does not work on Gradle projects. This command is now deprecated and dcover validate should be used instead. [Ref: TG-11707]

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