Method register

output/java_guava/1.4.17/Closer.java:130–136

(@Nullable C closeable)

  // close. this word no longer has any meaning to me.

  @CanIgnoreReturnValue
  public <C extends Closeable> C register(@Nullable C closeable) {
    if (closeable != null) {
      stack.addFirst(closeable);
    }
    return closeable;
  }

  /**
   * Stores the given throwable and rethrows it. It will be rethrown as is if it is an