src/java.base/share/classes/java/nio/file/FileAlreadyExistsException.java

@@ -33,10 +33,11 @@
  */
 
 public class FileAlreadyExistsException
     extends FileSystemException
 {
+    @java.io.Serial
     static final long serialVersionUID = 7579540934498831181L;
 
     /**
      * Constructs an instance of this class.
      *