in src/main/java/org/jetbrains/jetCheck/Iteration.java [173:182]
private void shutdownExecutor() {
executor.shutdownNow();
try {
if (!executor.awaitTermination(1, TimeUnit.MINUTES)) {
throw new IllegalStateException("Cannot shutdown " + EXECUTOR_NAME);
}
} catch (InterruptedException e) {
throw new RuntimeException("Cannot shutdown " + EXECUTOR_NAME, e);
}
}