--- old/src/jdk.scripting.nashorn.shell/share/classes/jdk/nashorn/tools/jjs/PackagesHelper.java	2020-04-15 18:45:21.000000000 +0530
+++ /dev/null	2020-04-15 18:45:21.000000000 +0530
@@ -1,143 +0,0 @@
-/*
- * Copyright (c) 2015, 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.tools.jjs;
-
-import java.lang.reflect.Modifier;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import jdk.nashorn.internal.runtime.Context;
-
-/**
- * Abstract helper class to compute properties of a Java package object. Properties of
- * package object are (simple) top level class names in that java package and
- * immediate subpackages of that package.
- */
-abstract class PackagesHelper {
-    private final Context context;
-
-    /**
-     * Construct a new PackagesHelper.
-     *
-     * @param context the current Nashorn Context
-     */
-    PackagesHelper(final Context context) throws IOException {
-        this.context = context;
-    }
-
-    static PackagesHelper create(final Context context) throws IOException {
-        return isJavacHelperAvailable()? new JavacPackagesHelper(context) : new JrtPackagesHelper(context);
-    }
-
-    // LRU cache for java package properties lists
-    private final LinkedHashMap<String, List<String>> propsCache =
-        new LinkedHashMap<String, List<String>>(32, 0.75f, true) {
-            private static final int CACHE_SIZE = 100;
-            private static final long serialVersionUID = 1;
-
-            @Override
-            protected boolean removeEldestEntry(final Map.Entry<String, List<String>> eldest) {
-                return size() > CACHE_SIZE;
-            }
-        };
-
-    /**
-     * Return the list of properties of the given Java package or package prefix
-     *
-     * @param pkg Java package name or package prefix name
-     * @return the list of properties of the given Java package or package prefix
-     */
-    final List<String> getPackageProperties(final String pkg) {
-        // check the cache first
-        if (propsCache.containsKey(pkg)) {
-            return propsCache.get(pkg);
-        }
-
-        try {
-            // make sorted list of properties
-            final List<String> props = new ArrayList<>(listPackage(pkg));
-            Collections.sort(props);
-            propsCache.put(pkg, props);
-            return props;
-        } catch (final IOException exp) {
-            if (Main.DEBUG) {
-                exp.printStackTrace();
-            }
-            return Collections.<String>emptyList();
-        }
-    }
-
-    /**
-     * Close resources (like file system) used, if any.
-     */
-    abstract void close() throws IOException;
-
-    /**
-     * Return the set of properties of a given package object.
-     *
-     * @param pkg package start string
-     * @return set of properties of the given Java package
-     */
-    abstract Set<String> listPackage(final String pkg) throws IOException;
-
-    final boolean isClassAccessible(final String className) {
-        try {
-            final Class<?> clz = context.findClass(className);
-            return Modifier.isPublic(clz.getModifiers());
-        } catch (final ClassNotFoundException cnfe) {
-        }
-        return false;
-    }
-
-    final boolean isPackageAccessible(final String pkgName) {
-        try {
-            Context.checkPackageAccess(pkgName);
-            return true;
-        } catch (final SecurityException se) {
-            return false;
-        }
-    }
-
-    private static boolean isJavacHelperAvailable() {
-        try {
-            boolean result = JavacPackagesHelper.isAvailable();
-            if (Main.DEBUG && !result) {
-                System.err.println("javac packages helper is not available");
-            }
-            return result;
-        } catch (final LinkageError err) {
-            if (Main.DEBUG) {
-                System.err.println("javac packages helper is not available");
-                err.printStackTrace();
-            }
-            return false;
-        }
-    }
-}