Maven Shell
The Maven Shell (mvnsh) is a built-in CLI tool for faster builds during active development.
It's available since Maven 4.0.0.
Note: Maven Shell acts as a technical preview showcasing new maven CLI abilities. Therefore, it may change in future versions.
Description
Each time you run an mvn command, the entire process chain is executed: booting Java, starting Maven, loading the
configuration, performing the task, tearing down, and exiting — every single time.
Maven Shell keeps a single Maven process running for as long as the shell remains open. This means you avoid booting Java and Maven every time you start a build.
Usage
To use Maven Shell open a command line and call mvnsh.
A Maven process is loaded, and you are now using Maven Shell, visible by the line prefix maven mvnsh> as shown in the example below.
D:\Github\Maven\maven>mvnsh
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4.0.0-SNAPSHOT
maven mvnsh>
When you run your regular Maven (mvn) commands, they are executed immediately without a delay to boot Java and Maven.
maven mvnsh> mvn verify
[INFO] Scanning for projects...
[INFO] --------------------------------------------------------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO]
[...]
To exit the shell and retrun to your regular command line, type exit.
maven mvnsh>
maven mvnsh> exit
D:\Github\Maven\maven>
See also
To improve performance and reduce build times even more, you can use the external Maven Daemon, which manages a pool of resident Maven processes.