The stats.txt file should contain a string describing what files weren't run an for what reasons since https://github.com/openjdk/jtreg/pull/217/files. However, when all the tests to be run end up skipped, the behavior changes, the file only contains "no tests selected". This is is confusing.

To reproduce:

$ tree test
test
├── Test2.java
├── Test.java
└── TEST.ROOT
 
"Test" has @requires (os.family == "windows")
"Test2" has @requires (os.family != "windows")

$ java -jar jtreg-7.6+1/jtreg/lib/jtreg.jar test/
Test results: passed: 1; did not meet platform requirements: 1
Report written to /tank/lujaniuk/views/make-parsing-jtreg-jdk/JTreport/html/report.html
Results written to /tank/lujaniuk/views/make-parsing-jtreg-jdk/JTwork

However, if we let "Test2" have the same require as "Test":

$ java -jar jtreg-7.6+1/jtreg/lib/jtreg.jar test/
Test results: no tests selected
Report written to /tank/lujaniuk/views/make-parsing-jtreg-jdk/JTreport/html/report.html
Results written to /tank/lujaniuk/views/make-parsing-jtreg-jdk/JTwork

I would have expected it to print
Test results: did not meet platform requirements: 2