src/java.base/share/classes/java/net/SocketPermission.java

*** 148,157 ****
--- 148,158 ----
   */
  
  public final class SocketPermission extends Permission
      implements java.io.Serializable
  {
+     @java.io.Serial
      private static final long serialVersionUID = -7204263841984476862L;
  
      /**
       * Connect to host:port
       */
*** 1184,1193 ****
--- 1185,1195 ----
      /**
       * WriteObject is called to save the state of the SocketPermission
       * to a stream. The actions are serialized, and the superclass
       * takes care of the name.
       */
+     @java.io.Serial
      private synchronized void writeObject(java.io.ObjectOutputStream s)
          throws IOException
      {
          // Write out the actions. The superclass takes care of the name
          // call getActions to make sure actions field is initialized
*** 1198,1207 ****
--- 1200,1210 ----
  
      /**
       * readObject is called to restore the state of the SocketPermission from
       * a stream.
       */
+     @java.io.Serial
      private synchronized void readObject(java.io.ObjectInputStream s)
           throws IOException, ClassNotFoundException
      {
          // Read in the action, then initialize the rest
          s.defaultReadObject();
*** 1446,1455 ****
--- 1449,1459 ----
      @SuppressWarnings("unchecked")
      public Enumeration<Permission> elements() {
          return (Enumeration)Collections.enumeration(perms.values());
      }
  
+     @java.io.Serial
      private static final long serialVersionUID = 2787186408602843674L;
  
      // Need to maintain serialization interoperability with earlier releases,
      // which had the serializable field:
  
*** 1461,1470 ****
--- 1465,1475 ----
  
      /**
       * @serialField permissions java.util.Vector
       *     A list of the SocketPermissions for this set.
       */
+     @java.io.Serial
      private static final ObjectStreamField[] serialPersistentFields = {
          new ObjectStreamField("permissions", Vector.class),
      };
  
      /**
*** 1472,1481 ****
--- 1477,1487 ----
       */
      /*
       * Writes the contents of the perms field out as a Vector for
       * serialization compatibility with earlier releases.
       */
+     @java.io.Serial
      private void writeObject(ObjectOutputStream out) throws IOException {
          // Don't call out.defaultWriteObject()
  
          // Write out Vector
          Vector<SocketPermission> permissions = new Vector<>(perms.values());
*** 1486,1495 ****
--- 1492,1502 ----
      }
  
      /*
       * Reads in a Vector of SocketPermissions and saves them in the perms field.
       */
+     @java.io.Serial
      private void readObject(ObjectInputStream in)
          throws IOException, ClassNotFoundException
      {
          // Don't call in.defaultReadObject()