src/java.base/share/classes/java/util/TimeZone.java

@@ -158,10 +158,11 @@
     private static final int ONE_MINUTE = 60*1000;
     private static final int ONE_HOUR   = 60*ONE_MINUTE;
     private static final int ONE_DAY    = 24*ONE_HOUR;
 
     // Proclaim serialization compatibility with JDK 1.1
+    @java.io.Serial
     static final long serialVersionUID = 3581463369166924961L;
 
     /**
      * Gets the time zone offset, for current date, modified in case of
      * daylight savings. This is the offset to add to UTC to get local time.