private void validateTestMethods(List<FrameworkMethod> methods, List<Throwable> errors) {
    for (FrameworkMethod method : methods) {
      if (!Arrays.equals(method.getMethod().getParameterTypes(),
          new Class[] {ParallelExecutor.class})) {
        errors.add(new AssertionFailedError("Incorrect signature on method: " + method
            + ". For a concurrent test, all test methods should take a ParallelExector parameter."));
      }
    }
  }
Delegate to actually run the test.
geode-concurrency-test/src/main/java/org/apache/geode/test/concurrency/ConcurrentTestRunner.java