Follow (and extrapolate from!) these steps to get a WADI development environment up and running in Eclipse 3.x:

• d/l and install the latest maven-2.0.x
• follow instructions for SVN to get yourself a WADI tree
• cd wadi
• mvn -Dmaven.test.skip=true install
• mvn eclipse:eclipse
• mkdir <WADI> (wherever you want your WADI workspace to be)
• start eclipse
• select the <WADI> workspace that you have just created a directory for
• Workbench
• File -> Import/Export... -> General -> Existing Projects into Workspace -> Next -> Select Root Directory: <the 'wadi' dir you just checked out> -> Fimish
• wait for Eclipse to finish 'refreshing workspace' and then 'building workspace'. (may take a VERY long time - 5-10 mins!)
• select all Projects in Navigator pane, then Project -> Properties -> Java Build Path -> Libraries -> Add Variable -> Configure Variables... -> New ... -> Name: M2_REPO, Path: e.g. /home/jules/.m2/repository -> OK -> etc..
• Eclipse seems to get a bit confused here - I had to quit, restart and do a 'clean' bulid before it settled down
• lets disable a few compiler warnings - project by project - where applicable:
• Project -> Properties -> Java Compiler -> Errors/Warnings -> Enable project specific settings ->
• Potential Programming problems -> Serializable class without... -> Ignore
• Deprecated and restricted API -> Ignore (Servlet API requires that we implement deprecated portions of their API)
• OK, clean rebuild etc..
• To integrate SVN with Eclipse - check this out

happy hacking