--- old/src/java.base/share/classes/java/nio/file/ProviderMismatchException.java	2019-08-27 17:28:17.586324386 -0700
+++ new/src/java.base/share/classes/java/nio/file/ProviderMismatchException.java	2019-08-27 17:28:17.422324386 -0700
@@ -35,6 +35,7 @@
 public class ProviderMismatchException
     extends java.lang.IllegalArgumentException
 {
+    @java.io.Serial
     static final long serialVersionUID = 4990847485741612530L;
 
     /**