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 ...

You can easily package an application’s entire set of classes and resources into a Java Archive (JAR). In fact, that is one goal of having jar files. Another is to let users easily execute the ...

I have a multi-module project which builds a couple of JARs and then distributed them into two WARs. However, one of the JARs does not contain any Java code at all, merely (maven-filtered) resources.

I know there's no practical purpose to this it's entirely theoretical. and I know a jar file uses the zip format. But how does one create a jar file without a manifest file. (I don't mean creating a ...