About m2e

m2e is the official Maven Integration for Eclipse plugin

• integrates Apache Maven to Eclipse's incremental build
• provides tight JDT integration
• is a Platform/Framework for others to build upon

m2e features

• Wizards for importing or creating projects
• Provides a powerful POM editor
• Launch configurations (to run maven)
• Automatic download of java sources
• Access Maven repository indexes

Challenges

• Eclipse Platform/IDE has oustanding limitations

  • single compilation classpath(test==main)
  • no nested project support

• Maven plugins are not -always- fit for incremental builds.

  • sometimes execution is irrelevant
  • poor performance in IDE
  • can cause resource leaks, infinite build loops

Lifecycle Mapping

m2e looks for interesting Maven build phases

what plugins can be executed?

During an incremental build, maven plugin execution can be :

• ignored
• executed
• delegated to an m2e connector

Lifecycle Mapping - cont'd

Lifecycle Mappings can be stored :

• inside pom.xml
• at the workspace level
• inside Eclipse (m2e) plugins
• inside Maven plugins

About m2e-wtp

aven Integration for Eclipse WTP

• m2e sub-project, graduated from incubator
• provides a bridge between Maven (m2e) and Eclipse WTP
• now included in the Java EE Kepler distribution

m2e-wtp features

• Provides Java EE (->7) project facet integration
• Dynamic War Overlay support
• Dynamic Web Resource filtering support
• Eclipse to Maven project conversion
• Optional JAX-RS, JSF, JPA configurators