To take full advantage of SonarQube in Eclipse, it is recommended that your project be analyzed on a regular basis by SonarQube. Regular analysis allows the Eclipse plugin to distinguish between existing issues and any new ones you introduced.

If your project is not already under analysis, you'll need to declare it through the SonarQube web interface. 

Once your project exists in SonarQube, you're ready to get started with SonarQube in Eclipse.

Setting SonarQube Servers

Go to Window > Preferences > SonarQube > Servers.

SonarQube in Eclipse is pre-configured to access a local SonarQube server listening on http://localhost:9000/. You can edit this server, delete it or add new ones.

The user you set to access the server has to be granted the Execute Preview Analysis permission.

Linking a Project to One Analyzed on a SonarQube Server

Linking for the first time

Once the SonarQube server is defined, the next step is to link your Eclipse project with a project defined on this SonarQube server.

To do so, right-click on the project in the Project Explorer, and then Configure > Associate with SonarQube...:

In the SonarQube project text field, start typing the name of the project and select it in the list box:

Click on Finish. Your project is now associated to one analyzed on your SonarQube server.

Note that for Maven projects, the association is performed automatically.

Changing linkage

At any time, it is possible to change the project association.

To do so, right-click on the project in the Project Explorer, and then SonarQube > Change Project Association...:

Unlinking a Project

To do so, right-click on the project in the Project Explorer, and then SonarQube > Remove SonarQube Nature:

Advanced Configuration

Additional settings (such as markers for new issues) are available through Window > Preferences > SonarQube:

You are now all set with configuration and you can start using SonarQube in Eclipse.