public ReactionForComment withReactionUsers(java.util.Collection<String> reactionUsers) {
        setReactionUsers(reactionUsers);
        return this;
    }
<p>
The Amazon Resource Names (ARNs) of users who have provided reactions to the comment.
</p>

@param reactionUsers
       The Amazon Resource Names (ARNs) of users who have provided reactions to the comment.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-codecommit/src/main/java/com/amazonaws/services/codecommit/model/ReactionForComment.java