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SPECIFICTION
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NonDex

github.com

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Spec score 7.3 #22 of 31 in Test Flakiness Management Software

Spec sheet

Purpose
NonDex detects and helps debug incorrect assumptions about under-determined Java APIs by exploring behaviors allowed by their specifications.Read 5 Oct 2026 · github.com
License
The repository includes an MIT license granting permission to use, copy, modify, distribute, sublicense, and sell the software, subject to its conditions.Read 5 Oct 2026 · github.com
API coverage
The supported API list includes collection and reflection APIs, file listing methods, and locale or time-related methods.Read 5 Oct 2026 · github.com
Debugging
Its debug tasks report reproduction arguments and debug output for flaky tests, including a stack trace for an invocation point when one can be identified.Read 5 Oct 2026 · github.com
Installation
The README shows plugin versions 2.2.1 for Maven and Gradle setup.Read 5 Oct 2026 · github.com
Java compatibility note
The README says Java 9 and later require replacing the Java 8 boot class path option with module exports and patch-module options for the command-line setup.Read 5 Oct 2026 · github.com
License warranty
The MIT license provides the software as-is without warranty.Read 5 Oct 2026 · github.com
Output
NonDex reports tests that pass without shuffling but fail in shuffled runs and logs them in a .nondex directory.Read 5 Oct 2026 · github.com
Platform setup
The README describes an automatic Gradle setup script for Linux or macOS.Read 5 Oct 2026 · github.com
Requirements
The README lists Java 8–21 (Oracle JDK or OpenJDK), Maven 3.6+ and Surefire for the Maven plugin, and Gradle 5.0+ for the Gradle plugin.Read 5 Oct 2026 · github.com
Test runners
The project provides Maven and Gradle plugins, plus command-line usage instructions.Read 5 Oct 2026 · github.com
Use case
It can expose implementation-dependent flaky tests before assumptions cause portability bugs across Java runtime environments.Read 5 Oct 2026 · github.com

Plans and prices

NonDex Free MIT-licensed software · Java 8–21 · Maven 3.6+ with Surefire or Gradle 5.0+ Read 5 Oct 2026 · github.com

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