I am using Sonar-Lint as my static code analysis plugin in intellij. When I run that after setting configurations, it can fetch rules form the server and show issues.
But still it can't clearly indicate code-duplication and coverage. Can anyone tell me, what has gone wrong or it's a bug?
SonarLint doesn't support those features, it goes out of its scope as SonarLint won't necessarily scan the entire project. SonarLint only shows code issues.
Use SonarQube and one of its Scanners to have that information.