private CompletableFuture<Void> completedExceptionallyFuture() {
    CompletableFuture<Void> completedExceptionallyFuture = new CompletableFuture<>();
    completedExceptionallyFuture.completeExceptionally(new RuntimeException());
    return completedExceptionallyFuture;
  }
Unit tests for {@link ServerLauncher}.

@since GemFire 7.0
geode-core/src/test/java/org/apache/geode/distributed/ServerLauncherTest.java