jcstress

Tech stack & purpose

Java Concurrency Stress (jcstress) is an experimental harness and test suite developed by OpenJDK to research the correctness of concurrency support in the JVM, class libraries, and hardware. The project is built with Java and Maven, requiring JDK 11+ to build and JDK 17+ to compile all tests, though most tests run on JDK 8+. jcstress works by having multiple threads execute tests concurrently while mutating or observing shared state, with the harness collecting statistics on observed states to detect reorderings or contract violations in concurrent code, and results are interpreted through generated HTML reports.

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Contributors

• Aleksey Shipilev490 commits
• Aleksey Shipilëv140 commits
• Pavel Rappo7 commits
• Jerzy Krolak3 commits
• Michael Mirwaldt3 commits
• Pavel Punegov3 commits
• Johnny Lim3 commits
• Vladimir Sitnikov2 commits
• Jiří Vaněk2 commits
• mmirwaldt2 commits
• Erik Duveblad1 commits
• Frank Yuan1 commits
• Bernhard Urban1 commits
• Volker Simonis1 commits
• Ivan Sopov1 commits