Hello!

I was taking a look at how regex was handled in this plugin, and ran across this:

https://github.com/jenkinsci/naginator-plugin/blob/master/src/main/java/com/chikli/hudson/plugin/naginator/NaginatorListener.java#L144-L161

It looks like the plugin never actually calls close on either reader. This will leak file handles and potentially system/OS buffers for each build log (and build logs can get huge).

This method should close the outside wrapper / buffered reader.