Jenkins JaCoCo Coverage with multiple classes with "$"

Using JaCoCo Emma Jenkins Plugin for a long time and successfully getting code coverage metrics but have some repetition of classes with "$" sign. Which brings down line coverage metrics. E.g. VideoFragment.class but have multiple classes with:

1. VideoFragment$1
2. VideoFragment$2
3. VideoFragment$3
4. VideoFragment$4 and so on

I can just ignore them it brings up the metrics but wondrering why it shows up and it that ok to ignore them?