After upgrading SonarQube from 4.0 to 4.2, I got a bunch of 'Unused private fields should be removed' errors from the classes with Lombok annotations.

I have

```
@SuppressWarnings("PMD.UnusedPrivateField")

```

declared at the beginning of all those classes. It worked fine when I was using SonarQube 3.7 and 4.0.

I use

```
mvn sonar:sonar

```

to generate the SonarQube report.

And this shows how my class look like:

```
@Data
@SuppressWarnings("PMD.UnusedPrivateField")
public class MyClass {
    private String field;
}

```

How can I get rid of those errors in version 4.2? Thanks.