Maven for Dummies

A JJTV tool night presentationTomer Gabel, November 2012

Agenda

Maven is not news…

… but it’s not well-understood either

Let’s go back to basics

Maven is…

A lifecycle management tool Not just a build system

Declarative Not a script!

Modular Everything is a plugin

Project lifecycle

compile

•process-resources

•compile

test•process-test-resources

• test-compile• test

package

•prepare-package

•package

deploy•verify• install•deploy

resources:resources

compiler:compile

resources:test-resources

compiler:test-compile

surefire:test war:war

Phases Goals

Project object model

POM

Hierarchy

Configuration

Dependencies

What’s in a POM?

XML *sigh* … yeah

Artifact descriptor

Hierarchy

Dependencies

Dependency management POMs reference

POMs

Group, artifact, version

Repository lookup

Local repository (“cache”)

Remote repositories

Using Maven effectively

Convention over configuration

Stick to the conventions if possible

Keep it simple

Avoid complex setups (e.g. multiple repositories)

Avoid feature creep (stick to common plugins)

Thanks for listening!

Useful links Maven home: http://maven.apache.org Central repository:

http://search.maven.org

Me! Blog: http://www.tomergabel.com Twitter: @tomerg LinkedIn: http://il.linkedin.com/in/

tomergabel