Yes, Mirth Connect uses Java and since Java is a popular programming language that is used by many software developers because it is versatile and can be used for a variety of purposes so, mirth developers have made sure that it is compatible with Java and it requires JRE 8 or newer version. Java has been around for a long time and has a large community of developers who continue to support and improve the language and the mirth team works side by side in providing support to it.