OpenJDK part of bug JDK-8015812 [TEST_BUG] Tests have conflicting test descriptions:
The following tests have test descriptions that map to the same .jtr file. In each case, the name exists with two different extensions (typically .java and .sh) and each one of the pair contains a test description. This confuses JavaTest/jtreg, which does not detect the issue (that's a bug in itself.)
The tests need to be fixed.
This is blocking adoption of jtreg 4.1 to run JDK regression tests.