\usepackage[dvipsnames]{xcolor}
\usepackage{listings}
\usepackage{courier}
\usepackage[T1]{fontenc}
\usepackage{textcomp}
\definecolor{code_background}{rgb}{0.95,0.95,0.95}
\lstset{
  backgroundcolor=\color{code_background},
  breakatwhitespace=false,
  breaklines=true,
  basicstyle=\ttfamily\color{black},
  commentstyle = \ttfamily\color{gray},
  keywordstyle=\ttfamily\color{blue},
  stringstyle=\color{orange},
  showstringspaces=false,
  frame=single,
  basicstyle=\ttfamily\tiny,
  columns=flexible,
  upquote=true,
}
\input{commons/source_code/java}