What is a JAR file (Java Archive)? 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 ...

How do you deploy a JAR file to Tomcat? Typically you deploy WAR files, not JARs. But if you need to link to a JAR file from a Java web app on Apache Tomcat, here's how to do it.

This post introduces you to multi-release JAR files. Discovering multi-release JAR files Many third-party Java frameworks and libraries support several versions of the Java platform.

Run the jar tool without arguments to see its usage. You pass it the -M option to create a JAR without a manifest. You won't be able to run the JAR file with java -jar, but you will still be able ...