8327799: JFR view: the "Park Until" field of jdk.ThreadPark is invalid if the parking method is not absolute

Backport-of: 6f8b0a33fa15f1dfc8b0c116375df0f90d9d8759

Author: Long Yang

src/jdk.jfr/share/classes/jdk/jfr/internal/util/ValueFormatter.java

@@ -272,6 +272,9 @@ private static List<String> decodeDescriptors(String descriptor, String arraySiz
     }
 
     public static String formatTimestamp(Instant instant) {
+        if (Instant.MIN.equals(instant)) {
+            return "N/A";
+        }
         return LocalTime.ofInstant(instant, ZoneId.systemDefault()).format(DATE_FORMAT);
     }
 }