"Install new software" is for adding features to Eclipse itself, not for downloading third-party libraries for your application. For that, you either use a build script (Maven, Gradle, Ivy, ...) for your project, or you download the library code and add it as "External Archive" to the Build Path of your project.

Answer from Andreas on Stack Overflow
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Installati.one
installati.one › home › centos › 7th › how to install apache-commons-cli on centos 7
How To Install apache-commons-cli on CentOS 7 | Installati.one
September 28, 2021 - In this tutorial we learn how to install apache-commons-cli on CentOS 7. apache-commons-cli is Command Line Interface Library for Java
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Syntax Savvy
learn.syntaxsavvy.dev › langs › tools › commons_cli › introduction_to_apache_commons_cli › apache_commons_cli_installation
Apache Commons CLI installation | Syntax Savvy
This article covers the process of downloading and installing Apache Commons CLI library and setting up the classpath to use it in Java projects.
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GitHub
github.com › apache › commons-cli
GitHub - apache/commons-cli: Apache Commons CLI · GitHub
<dependency> <groupId>commons-cli</groupId> <artifactId>commons-cli</artifactId> <version>1.11.0</version> </dependency> Building requires a Java JDK and Apache Maven. The required Java version is found in the pom.xml as the maven.compiler.source property. From a command shell, run mvn without arguments to invoke the default Maven goal to run all tests and checks.
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Apache Commons
commons.apache.org › cli › download_cli.cgi
Download Apache Commons CLI – Apache Commons CLI
November 8, 2025 - Apache Commons, Apache Commons CLI, Apache, the Apache logo, and the Apache Commons project logos are trademarks of The Apache Software Foundation.
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TutorialsPoint
tutorialspoint.com › commons_cli › commons_cli_quick_guide.htm
Apache Commons CLI - Quick Guide
Download the latest version of Apache Common IO jar file from commons-cli-1.10.0-bin.zip. At the time of writing this tutorial, we have downloaded commons-cli-1.10.0-bin.zip and copied it into C:\>Apache folder.
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TutorialsPoint
tutorialspoint.com › commons_cli › commons_cli_environment.htm
Apache Commons CLI - Environment Setup
Download the latest version of Apache Common IO jar file from commons-cli-1.10.0-bin.zip. At the time of writing this tutorial, we have downloaded commons-cli-1.10.0-bin.zip and copied it into C:\>Apache folder. Set the APACHE_HOME environment variable to point to the base directory location ...
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Apache Commons
commons.apache.org › cli
Apache Commons CLI – Apache Commons CLI
November 8, 2025 - Apache Commons, Apache Commons CLI, Apache, the Apache logo, and the Apache Commons project logos are trademarks of The Apache Software Foundation.
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Maven Repository
mvnrepository.com › artifact › commons-cli › commons-cli
Maven Repository: commons-cli » commons-cli
November 13, 2025 - Apache Commons CLI provides a simple API for presenting, processing, and validating a Command Line Interface.
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MacPorts
ports.macports.org › port › commons-cli
Install commons-cli on macOS with MacPorts
https://commons.apache.org/cli/ To install commons-cli, paste this in macOS terminal after installing MacPorts · sudo port install commons-cli Copy More instructions Report an issue with this port · × · If not done already, install MacPorts. To install commons-cli, run the following command ...
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Baeldung
baeldung.com › home › java › intro to the apache commons cli
Intro to the Apache Commons CLI | Baeldung
February 20, 2025 - In this tutorial, we’ll explore the Java Apache Commons CLI library.
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TutorialsPoint
tutorialspoint.com › commons_cli › index.htm
Apache Commons CLI Tutorial
In this tutorial, we'll cover all the ways of using Apache Common CLI which helps in solving the common problems developers/users face during development while dealing with Command Line based development. To maximize the benefits of this tutorial, readers should have a basic understanding of Java programming.
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Liviutudor
liviutudor.com › home › news › adding apache commons cli to your java project
Adding Apache Commons CLI to your Java Project | Liviu Tudor -- Of Man and Internet
November 17, 2019 - So for next step I’m finally introducing Apache Commons CLI — look at using_cli branch: https://github.com/liviutudor/using-apache-cli/blob/using_cli/src/main/java/liv/tudor/CmdLineParams.java We are keeping the same pattern of externalizing the parameters parsing and validation but now add CLI to it.
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Coderanch
coderanch.com › t › 728323 › java › install-Apache-commons-library-working
How to install and use Apache commons library if only working with a text editor and command line? (Java in General forum at Coderanch)
March 24, 2020 - Hi, if you're not using any build tool (eg. gradle, maven), by which you could manage dependencies, you still can manually download apache-commons JAR (for example here: Maven central repository) and specify its location on classpath when compiling (javac) and running (java).
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Maven Central
central.sonatype.com › artifact › commons-cli › commons-cli
Maven Central: commons-cli:commons-cli
Apache Commons CLI provides a simple API for presenting, processing, and validating a Command Line Interface. Copy to clipboard · <dependency> <groupId>commons-cli</groupId> <artifactId>commons-cli</artifactId> <version>1.11.0</version> </dependency> Copy to clipboard ·
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Opensource.com
opensource.com › article › 21 › 8 › java-commons-cli
Parse command options in Java with commons-cli | Opensource.com
August 13, 2021 - There are several ways to parse options in Java. My favorite is the Apache Commons CLI library, called commons-cli for short. If you're using a project management system like Maven and an IDE, you can install the Apache Commons CLI library in your project properties (such as pom.xml or a configuration screen in Eclipse or NetBeans).
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Maven Repository
mvnrepository.com › artifact › commons-cli › commons-cli › 1.2
Maven Repository: commons-cli » commons-cli » 1.2
Apache Commons CLI provides a simple API for presenting, processing, and validating a Command Line Interface. ... aar amazon android apache api arm assets build build-system bundle client clojure cloud config cran data database eclipse example extension framework github gradle groovy io ios javascript jvm kotlin library logging maven mobile module npm osgi plugin resources rlang sdk server service spring sql starter testing tools ui web webapp