src/java.base/share/classes/java/io/ObjectOutputStream.java

@@ -1064,11 +1064,11 @@
      * override security-sensitive non-final methods.  Returns true if subclass
      * is "safe", false otherwise.
      */
     private static boolean auditSubclass(final Class<?> subcl) {
         Boolean result = AccessController.doPrivileged(
-            new PrivilegedAction<Boolean>() {
+            new PrivilegedAction<>() {
                 public Boolean run() {
                     for (Class<?> cl = subcl;
                          cl != ObjectOutputStream.class;
                          cl = cl.getSuperclass())
                     {