YamlCommentFormatter has faulty null check

[Ontey6]

In org.simpleyaml.configuration.comments.format.YamlCommentFormatter's first constructor, There are two nullity checks using Validate.notNull, but they both check the same object:

public YamlCommentFormatter(final YamlCommentFormatterConfiguration blockFormatter, final YamlSideCommentFormatterConfiguration sideFormatter) {
   Validate.notNull(blockFormatter, "blockFormatter configuration cannot be null!");
>  Validate.notNull(blockFormatter, "sideFormatter configuration cannot be null!");
   this.blockFormatter = blockFormatter;
   this.sideFormatter = sideFormatter;
}