src/java.base/share/classes/javax/crypto/SecretKey.java

*** 62,68 ****
--- 62,69 ----
  
      /**
       * The class fingerprint that is set to indicate serialization
       * compatibility since J2SE 1.4.
       */
+     @SuppressWarnings("serial") // serialVersionUID in an interface is ineffectual
      static final long serialVersionUID = -4795878709595146952L;
  }