docs: private static void checkSurefireConfiguration(Object mojo) throws Exception {
          String forkCount = null;
          try {
              forkCount = invokeAndGetString(GET_FORK_COUNT, mojo);
          } catch (NoSuchMethodException ex) {
              // Nothing: earlier versions (before 2.14) of surefire did
              // not have forkCount.
          }
          String forkMode = null;
          try {
              forkMode = getStringField(FORK_MODE_FIELD, mojo);
          } catch (NoSuchMethodException ex) {
              // Nothing: earlier versions (before 2.1) of surefire did
              // not have forkMode.
          }
          if ((forkCount != null && forkCount.equals("0"))
                  || (forkMode != null && (forkMode.equals("never") || forkMode.equals("none")))) {
              throwMojoExecutionException(mojo,
                      "Fork has to be enabled when running tests with Ekstazi; check forkMode and forkCount parameters.",
                      null);
          }
      }