src/java.base/share/classes/java/lang/Throwable.java

@@ -209,12 +209,11 @@
      */
     private StackTraceElement[] stackTrace = UNASSIGNED_STACK;
 
     // Setting this static field introduces an acceptable
     // initialization dependency on a few java.util classes.
-    private static final List<Throwable> SUPPRESSED_SENTINEL =
-        Collections.unmodifiableList(new ArrayList<Throwable>(0));
+    private static final List<Throwable> SUPPRESSED_SENTINEL =Collections.emptyList();
 
     /**
      * The list of suppressed exceptions, as returned by {@link
      * #getSuppressed()}.  The list is initialized to a zero-element
      * unmodifiable sentinel list.  When a serialized Throwable is