When using pdflatex and bibtex on following LNCS class, one gets errors

\documentclass[runningheads,a4paper,english]{llncs}[2022/01/12]
\bibliographystyle{splncs04}
\begin{document}
\title{Paper Title}
\author{Firstname Lastname \and Firstname Lastname}
\institute{Institute}
\maketitle
\begin{abstract}
...
\end{abstract}
\section{Introduction}
...
\section{Related Work}
There are multiple systematic literature reviews (e.g., \cite{Tan_2021} and \cite{Scholey_2013}) ...
\bibliography{Chocolate}
\end{document}

(The .bib file used is

The style file: splncs04.bst
Database file #1: Chocolate.bib
Warning--empty journal in Scholey_2013
Warning--empty year in Scholey_2013
Warning--empty journal in Tan_2021
Warning--empty year in Tan_2021
(There were 4 warnings)

JabRef should be able to present these errors.

JabRef already has an integrity check:

It should be possible to handle the bibtex warnings and errors.

Idea: Two tabs: "Internal" and "BibTeX"

• At the bibtex tab, the user selects a .blg file. (filename field + browse button)
• As default value, the current library name is used (.bib exchanged with .blg)
• The dialog remembers the file per library (in case not the default value is used). The setting is stored in the JabRef preferences (not in the library itself). Changing the file to the default value removes the preference
• Parse the .blg file and show the warnings as messages in the dialog (this is a new class in logic; please also add test cases for it)