The eclipse project created in a previous version of WebNMS can be upgraded using the Upgrade Project option under WebNMS menu.
Follow the below steps to upgrade the project.
Select the project.
Select WebNMS > Upgrade Project menu item. The Configuration Updater dialog will be displayed.
Use the Browse button to select the new WebNMS Home directory. The Product Version and the Service Pack Version will be displayed.
Click the Update button. Confirmation dialog is displayed. Click the OK button to upgrade the project.