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

@@ -35,10 +35,11 @@
  */
 
 public class FileSystemException
     extends IOException
 {
+    @java.io.Serial
     static final long serialVersionUID = -3055425747967319812L;
 
     private final String file;
     private final String other;