OpenJML

Spec sheet

Purpose

OpenJML checks whether Java programs annotated with Java Modeling Language specifications satisfy those specifications.Read 9 Oct 2026 · openjml.org

License

The OpenJML User Guide states that the command-line tool is licensed under GPL version 2.Read 9 Oct 2026 · openjml.org

Command line

OpenJML is available as a standalone command-line application for macOS, Linux (Ubuntu), WSL, Cygwin, and Windows CMD.Read 9 Oct 2026 · openjml.org

IDE integration

The downloads page says OpenJML includes a VS Code extension and offers an Eclipse plugin, both of which require an OpenJML installation.Read 9 Oct 2026 · openjml.org

IDE support status

The feature status page lists Eclipse, Visual Studio, IntelliJ, and LSP integration as obsolete and unsupported, with future integration planned.Read 9 Oct 2026 · openjml.org

Language support

The feature status page says Java language elements through Java 7 are generally parsed, typechecked, and compiled in runtime assertion checking, with exceptions and partial support documented.Read 9 Oct 2026 · openjml.org

LSP capabilities

The language server supports editor warnings and errors, syntax coloring, go to definition, find references, and document highlights.Read 9 Oct 2026 · openjml.org

Notable limitation

The feature status page says test suite generation is not yet supported because JMLUnitNG must be ported to Java 21.Read 9 Oct 2026 · openjml.org

Project development

The About page names David Cok as OpenJML’s principal developer and says the majority of project work has been provided by volunteers.Read 9 Oct 2026 · openjml.org

Security and compliance

The official pages opened describe verification and runtime checking capabilities but do not state a security certification or compliance standard.Read 9 Oct 2026 · openjml.org

Solver integrations

OpenJML uses SMT solvers as logic checkers, and a selection of supported solvers is bundled with the release.Read 9 Oct 2026 · openjml.org

Support channel

The About page directs users to GitHub issues for general JML information.Read 9 Oct 2026 · openjml.org

Verification modes

It provides static deductive verification and runtime assertion checking.Read 9 Oct 2026 · openjml.org

Plans and prices

Every OpenJML plan and price →

Where Specifiction places it

• Formal Verification Tools#14 of 357.9