src/java.base/share/classes/java/security/PrivateKey.java

*** 62,68 ****
--- 62,69 ----
      // Declare serialVersionUID to be compatible with JDK1.1
      /**
       * The class fingerprint that is set to indicate serialization
       * compatibility with a previous version of the class.
       */
+     @SuppressWarnings("serial") // serialVersionUID in an interface is ineffectual
      static final long serialVersionUID = 6034044314589513430L;
  }