test/jdk/jdk/jfr/event/gc/collection/TestG1ParallelPhases.java

*** 108,119 ****
              "ObjCopy",
              "Termination",
              "StringDedupQueueFixup",
              "StringDedupTableFixup",
              "RedirtyCards",
              "NonYoungFreeCSet",
!             "YoungFreeCSet"
          );
  
          // Some GC phases may or may not occur depending on environment. Filter them out
          // since we can not reliably guarantee that they occur (or not).
          Set<String> optPhases = of(
--- 108,121 ----
              "ObjCopy",
              "Termination",
              "StringDedupQueueFixup",
              "StringDedupTableFixup",
              "RedirtyCards",
+             "ParFreeCSet",
              "NonYoungFreeCSet",
!             "YoungFreeCSet",
!             "RebuildFreeList"
          );
  
          // Some GC phases may or may not occur depending on environment. Filter them out
          // since we can not reliably guarantee that they occur (or not).
          Set<String> optPhases = of(