public @NotNull SubTaskProgressIndicator createSubTaskIndicator(int taskWeight) {
    if (taskWeight < 0) {
      throw new IllegalArgumentException("Task weight must not be negative: " + taskWeight);
    }
    if (myRemainingTotalWeight.addAndGet(-taskWeight) < 0) {
      throw new IllegalStateException("Attempted to create more task indicators than registered in constructor");
    }
    return new SubTaskProgressIndicator(this, taskWeight);
  }
public @NotNull SubTaskProgressIndicator createSubTaskIndicator(int taskWeight)