Learn how a Java JAR file (Java Archive) allows you to package compiled code and other resources in a single file that is easily deployed and executed resources.

As would creating the jar file and deleting the manifest file. I'm looking for a jar command line - what switches, options, what parameters - would create a jar file without a manifest file.

How to install Java on your computer To run Java apps, open JAR files or compile some source code into bytecode you’ll need to install Java. To download and install Java on Windows, MacOS or Ubuntu, ...

Newer versions of Java now require all JAR files to be signed with a valid code-signing key, and starting with Java 7 Update 51, unsigned or self-signed applications are blocked from running.