--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/objects/SetIterator.java	2020-04-15 18:49:09.000000000 +0530
+++ /dev/null	2020-04-15 18:49:09.000000000 +0530
@@ -1,99 +0,0 @@
-/*
- * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package jdk.nashorn.internal.objects;
-
-import jdk.nashorn.internal.objects.annotations.Function;
-import jdk.nashorn.internal.objects.annotations.ScriptClass;
-import jdk.nashorn.internal.runtime.PropertyMap;
-import jdk.nashorn.internal.runtime.ScriptRuntime;
-import jdk.nashorn.internal.runtime.Undefined;
-
-import static jdk.nashorn.internal.runtime.ECMAErrors.typeError;
-
-/**
- * ECMA6 23.2.5 Set Iterator Objects
- */
-@ScriptClass("SetIterator")
-public class SetIterator extends AbstractIterator {
-
-    // initialized by nasgen
-    private static PropertyMap $nasgenmap$;
-
-    private LinkedMap.LinkedMapIterator iterator;
-
-    private final IterationKind iterationKind;
-
-    // Cached global needed for every iteration result
-    private final Global global;
-
-    SetIterator(final NativeSet set, final IterationKind iterationKind, final Global global) {
-        super(global.getSetIteratorPrototype(), $nasgenmap$);
-        this.iterator = set.getJavaMap().getIterator();
-        this.iterationKind = iterationKind;
-        this.global = global;
-    }
-
-    /**
-     * ES6 23.2.5.2.1 %SetIteratorPrototype%.next()
-     *
-     * @param self the self reference
-     * @param arg the argument
-     * @return the next result
-     */
-    @Function
-    public static Object next(final Object self, final Object arg) {
-        if (!(self instanceof SetIterator)) {
-            throw typeError("not.a.set.iterator", ScriptRuntime.safeToString(self));
-        }
-        return ((SetIterator)self).next(arg);
-    }
-
-    @Override
-    public String getClassName() {
-        return "Set Iterator";
-    }
-
-    @Override
-    protected  IteratorResult next(final Object arg) {
-        if (iterator == null) {
-            return makeResult(Undefined.getUndefined(), Boolean.TRUE, global);
-        }
-
-        final LinkedMap.Node node = iterator.next();
-
-        if (node == null) {
-            iterator = null;
-            return makeResult(Undefined.getUndefined(), Boolean.TRUE, global);
-        }
-
-        if (iterationKind == IterationKind.KEY_VALUE) {
-            final NativeArray array = new NativeArray(new Object[] {node.getKey(), node.getKey()});
-            return makeResult(array, Boolean.FALSE, global);
-        }
-
-        return makeResult(node.getKey(), Boolean.FALSE, global);
-    }
-}