I'm trying to create a LaTeX document with several blocks of source code included. Between these blocks of code I want to add in a few lines of whitespace. I have tried using `\\` however this didn't work.

Here is what I have at the moment...

```
\lstset{language=Java, caption=ClassA.java}
\begin{lstlisting}
    % My code
\end{lstlisting}

\\ % This is where I want to make some whitespace

\lstset{language=Java, caption=ClassB.java}
\begin{lstlisting}
    % My code
\end{lstlisting}

```