src/java.base/share/classes/sun/nio/ch/ServerSocketChannelImpl.java

@@ -180,11 +180,11 @@
 
     private static class DefaultOptionsHolder {
         static final Set<SocketOption<?>> defaultOptions = defaultOptions();
 
         private static Set<SocketOption<?>> defaultOptions() {
-            HashSet<SocketOption<?>> set = new HashSet<SocketOption<?>>(2);
+            HashSet<SocketOption<?>> set = new HashSet<>(2);
             set.add(StandardSocketOptions.SO_RCVBUF);
             set.add(StandardSocketOptions.SO_REUSEADDR);
             set.add(StandardSocketOptions.IP_TOS);
             return Collections.unmodifiableSet(set);
         }