src/java.base/share/classes/sun/nio/ch/Reflect.java

*** 34,43 ****
--- 34,44 ----
  class Reflect {                                 // package-private
  
      private Reflect() { }
  
      private static class ReflectionError extends Error {
+         @java.io.Serial
          private static final long serialVersionUID = -8659519328078164097L;
          ReflectionError(Throwable x) {
              super(x);
          }
      }