To use this update site locally:
- Build the drools project with maven (including the eclipse stuff).
- Open Eclipse.
- Open the menu "Help", menu item "Install new software..."
- Click on the button "Add..." to add a new software site.
- Fill in the name "drools local update site"
- Click on the button "Local..." and select "droolsjbpm-tools/drools-eclipse/org.drools.updatesite/target/repository/"
- Select all the features. Click the buttons "Next" and "Finish".