Maven

Build Commands

Compile, test, and package Java projects with Maven's build lifecycle. Understand lifecycle phases, skip options, and multi-module builds for efficient project compilation.

11 commands

Pro Tips

Use 'mvn package -DskipTests' to build without running tests — useful for quick iteration.

Use 'mvn clean install' to build and install the artifact to your local .m2 repository.

Build a specific module in a multi-module project: 'mvn -pl module-name -am package' (-am builds dependencies).

Common Mistakes

Don't skip tests in CI. Use '-DskipTests' only locally for faster feedback during development.

'mvn clean' deletes the entire target/ directory. Make sure no important generated files are stored there.

Commands

Clean and compile

$ mvn clean compile

Clean and compile source code.

Package

$ mvn package

Create JAR/WAR package.

Install to local repo

$ mvn clean install

Build and install to local repository.

Skip tests

$ mvn clean install -DskipTests

Build without running tests.

Skip test compilation

$ mvn clean install -Dmaven.test.skip=true

Skip compiling and running tests.

Run tests

$ mvn test

Run unit tests.

Run single test

$ mvn test -Dtest=MyTest

Run specific test class.

Integration tests

$ mvn verify

Run integration tests.

Offline build

$ mvn install -o

Build using only local repository.

Parallel build

$ mvn -T 4 clean install

Build with 4 threads.

Debug output

$ mvn -X install

Build with debug logging.