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 ...

In the blog post Java SE 7 Brings Better File Handling than Ever to Groovy, I discussed how the addition of NIO.2 features in JDK 7 means better file handling for Groovy scripts. My particular focus ...

Learn how to do basic CRUD operations on JAR, WAR, and EAR files using the command line. Although Java IDEs and numerous graphical tools make it easier than ever to view and manipulate the contents of ...