How is "mvn clean install" different from "mvn install"?

java build maven maven-3
Leonid picture Leonid · May 16, 2011 · Viewed 277k times · Source

What is the difference between mvn clean install and mvn install?

Answer

Powerlord picture Powerlord · May 16, 2011

clean is its own build lifecycle phase (which can be thought of as an action or task) in Maven. mvn clean install tells Maven to do the clean phase in each module before running the install phase for each module.

What this does is clear any compiled files you have, making sure that you're really compiling each module from scratch.

Related questions

Activate Maven profile if another profile is not activated

The question is related to Maven: Only activate profile A if profile B is not activated?, but it's more specific. If I type one of the following: mvn clean install -PspecificProfile mvn clean install -Dsmth -PspecificProfile mvn clean install -Dsmth …

Read More
Maven build Compilation error : Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project Maven

I have a maven project forked and cloned from a git repo onto my eclipse. It is build on Java 8. The first thing i do is perform a mvn clean install But I get following failure message: [INFO] Scanning for …

Read More
What is a Maven artifact?

What is an artifact and why does Maven need it?

Read More