Apache Tomcat is an open-source implementation of the Java Servlet, JavaServer Pages, Java Expression Language and WebSocket technologies.
Google Web Toolkit (GWT) is an open-source Java software development framework that makes writing AJAX applications.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Java is a class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.