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

@@ -456,11 +456,11 @@
                         debug.println("access denied " + perm);
                     }
                     Thread.dumpStack();
                     final ProtectionDomain pd = context[i];
                     final Debug db = debug;
-                    AccessController.doPrivileged (new PrivilegedAction<Void>() {
+                    AccessController.doPrivileged (new PrivilegedAction<>() {
                         public Void run() {
                             db.println("domain that failed "+pd);
                             return null;
                         }
                     });