\documentclass{jss}
\usepackage{amsmath}

\author{Placeholder Author\\Placeholder Institution}
\title{Placeholder Vignette: BibTeX Violation}

\Abstract{
  This vignette triggers \code{JSS-BIB-001}. The bibliography has an
  entry whose \code{year} field is missing, which the BibTeX rule
  flags. The companion \code{refs.bib} intentionally omits it.
}

\Keywords{placeholder, bibtex, smoke}
\Plainkeywords{placeholder, bibtex, smoke}

\begin{document}
\section{Introduction}

See \cite{jones_undated} for an example of a bibliography entry
missing its publication year.

\end{document}
