Sonarqube incorrect report for duplicated code

Question

I am a newbie to SonarQube and trying to use the tool for measuring my product quality.

In some cases, I found that the duplicated lines is reported incorrectly by SonarQube . The number of lines of code is less than the duplicated lines. How can that be ? Either the count of lines of code is incorrect or the count of duplicated lines is incorrect.

Assuming it could be a problem with my code alone, I visited the demo page of Sonarqube https://sonarqube.com/component_measures/domain/Duplications?id=com.adobe%3Aas3corelib

There as well , I found that one of the cases the lines of code is less than duplicated lines.

Where is the issue ? How do I address it ?

Answer 1

What you're seeing is the difference between Lines and Lines of Code. For instance, how many of each are below:

public void foo() {

  int i = 0;

  for (int j=0; j < 10; j++) 

    doTheThing(j);

 }

I'd say that's 4 LoC (maybe 5. Don't remember if the '}' counts) but 9 Lines.