A Java Archive, or JAR file, contains all of the various components that make up a self-contained, executable Java application, deployable Java applet or, most commonly, a Java library to which any ...

Community driven content discussing all aspects of software development from DevOps to design patterns. To run Java apps, open JAR files or compile some source code into bytecode you’ll need to ...

There still seems to be confusion about the relative simplicity or difficulty of deploying a Rails app using JRuby. Many folks still look around for the old tools and the old ways (Mongrel, generally) ...