ConTest is a tool that exposes and eliminates concurrency-related bugs in parallel and distributed Java programs. ConTest systematically and transparently schedules the execution of program threads such that program scenarios that are likely to contain race conditions, deadlocks, and other intermittent bugs (collectively called synchronization problems) are forced to appear with high frequency. Because bugs are found earlier in the testing process, ConTest dramatically improves the quality of testing and reduces development expense.  ConTest's impact on the testing effort is minimal. Testers can rerun existing test suites without recompilation of the software under test (but with a greater probability of uncovering synchronization problems). ConTest is easy to use and rcan be set up in less than one day, in most cases. This tool has been used successfully on industrial-sized applications (such as IBM WebSphere) and is, in general, a scalable testing solution. ConTest can also be used to measure test coverage, aid in debugging, and detect potential deadlocks.

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The MultithreadedTC framework was created to make it easier to test small concurrent abstractions. It enables test designers to guarantee a specific interleaving of two or more threads, even in the presence of blocking and timing issues.