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

@@ -31,11 +31,10 @@
 import java.nio.MappedByteBuffer;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
 import java.util.*;
 import jdk.internal.misc.Unsafe;
-import jdk.internal.ref.Cleaner;
 import sun.security.action.GetPropertyAction;
 
 
 public class Util {