How To Add M2_REPO Classpath Variable To Eclipse IDE

1. Add M2_REPO Manually
Define and add M2_REPO classpath variable manually into Eclipse IDE. Follow below steps :

Eclipse IDE, menu bar
Select Window > Preferences
Select Java > Build Path > Classpath Variables
Click on the new button > defined a new M2_REPO variable and point it to your local Maven repository
Done.

2. Add M2_REPO Automatically – eclipse:configure-workspace
Alternatively, you can define and add M2_REPO via Maven command “eclipse:configure-workspace“.

mvn -Declipse.workspace="your Eclipse Workspace" eclipse:configure-workspace
See an example :

C:\>mvn -Declipse.workspace="C:\Users\mkyong\workspace" eclipse:configure-workspace
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'eclipse'.
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Default Project
[INFO]    task-segment: [eclipse:configure-workspace] (aggregator-style)
[INFO] ------------------------------------------------------------------------
[INFO] [eclipse:configure-workspace {execution: default-cli}]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1 second
[INFO] Finished at: Thu Apr 14 20:45:17 SGT 2011
[INFO] Final Memory: 9M/112M
[INFO] ------------------------------------------------------------------------
Done.

Verify M2_REPO is Added
Review classpath variable to verify that the M2_REPOis added into Eclipse IDE.