--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/QuotedStringTokenizer.java	2020-04-15 18:50:03.000000000 +0530
+++ /dev/null	2020-04-15 18:50:03.000000000 +0530
@@ -1,156 +0,0 @@
-/*
- * Copyright (c) 2010, 2013, 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.runtime;
-
-import java.util.LinkedList;
-import java.util.Stack;
-import java.util.StringTokenizer;
-
-/**
- * A string tokenizer that supports entries with quotes and nested quotes. If
- * the separators are quoted either by ' and ", or whatever quotes the user
- * supplies they will be ignored and considered part of another token
- */
-public final class QuotedStringTokenizer {
-    private final LinkedList<String> tokens;
-
-    private final char quotes[];
-
-    /**
-     * Constructor
-     *
-     * @param str string to tokenize
-     */
-    public QuotedStringTokenizer(final String str) {
-        this(str, " ");
-    }
-
-    /**
-     * Create a quoted string tokenizer
-     *
-     * @param str
-     *            a string to tokenize
-     * @param delim
-     *            delimiters between tokens
-     *
-     */
-    public QuotedStringTokenizer(final String str, final String delim) {
-        this(str, delim, new char[] { '"', '\'' });
-    }
-
-    /**
-     * Create a quoted string tokenizer
-     *
-     * @param str
-     *            a string to tokenize
-     * @param delim
-     *            delimiters between tokens
-     * @param quotes
-     *            all the characters that should be accepted as quotes, default
-     *            is ' or "
-     */
-    private QuotedStringTokenizer(final String str, final String delim, final char[] quotes) {
-        this.quotes = quotes;
-
-        boolean delimIsWhitespace = true;
-        for (int i = 0; i < delim.length(); i++) {
-            if (!Character.isWhitespace(delim.charAt(i))) {
-                delimIsWhitespace = false;
-                break;
-            }
-        }
-
-        final StringTokenizer st = new StringTokenizer(str, delim);
-        tokens = new LinkedList<>();
-        while (st.hasMoreTokens()) {
-            String token = st.nextToken();
-
-            while (unmatchedQuotesIn(token)) {
-                if (!st.hasMoreTokens()) {
-                    throw new IndexOutOfBoundsException(token);
-                }
-                token += (delimIsWhitespace ? " " : delim) + st.nextToken();
-            }
-            tokens.add(stripQuotes(token));
-        }
-    }
-
-    /**
-     * @return the number of tokens in the tokenizer
-     */
-    public int countTokens() {
-        return tokens.size();
-    }
-
-    /**
-     * @return true if there are tokens left
-     */
-    public boolean hasMoreTokens() {
-        return countTokens() > 0;
-    }
-
-    /**
-     * @return the next token in the tokenizer
-     */
-    public String nextToken() {
-        return tokens.removeFirst();
-    }
-
-    private String stripQuotes(final String value0) {
-        String value = value0.trim();
-        for (final char q : quotes) {
-            if (value.length() >= 2 && value.startsWith("" + q) && value.endsWith("" + q)) {
-                // also go over the value and remove \q sequences. they are just
-                // plain q now
-                value = value.substring(1, value.length() - 1);
-                value = value.replace("\\" + q, "" + q);
-            }
-        }
-        return value;
-    }
-
-    private boolean unmatchedQuotesIn(final String str) {
-        final Stack<Character> quoteStack = new Stack<>();
-        for (int i = 0; i < str.length(); i++) {
-            final char c = str.charAt(i);
-            for (final char q : this.quotes) {
-                if (c == q) {
-                    if (quoteStack.isEmpty()) {
-                        quoteStack.push(c);
-                    } else {
-                        final char top = quoteStack.pop();
-                        if (top != c) {
-                            quoteStack.push(top);
-                            quoteStack.push(c);
-                        }
-                    }
-                }
-            }
-        }
-
-        return !quoteStack.isEmpty();
-    }
-}