src/java.base/share/classes/java/nio/charset/CoderMalfunctionError.java

@@ -37,10 +37,11 @@
 
 public class CoderMalfunctionError
     extends Error
 {
 
+    @java.io.Serial
     private static final long serialVersionUID = -1151412348057794301L;
 
     /**
      * Initializes an instance of this class.
      *