--- a/src/java.base/share/classes/sun/security/provider/SubjectCodeSource.java	Wed Oct 09 17:38:58 2019 +0100
+++ b/src/java.base/share/classes/sun/security/provider/SubjectCodeSource.java	Wed Oct 09 09:57:41 2019 -0700
@@ -54,6 +54,7 @@
     private static final Class<?>[] PARAMS = { String.class };
     private static final sun.security.util.Debug debug =
         sun.security.util.Debug.getInstance("auth", "\t[Auth Access]");
+    @SuppressWarnings("serial") // Not statically typed as Serializable
     private ClassLoader sysClassLoader;
 
     /**