--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/src/jdk.scripting.nashorn.shell/share/classes/jdk/nashorn/tools/jjs/Main.java	Thu Aug 13 19:07:27 2015 +0530
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2015, 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.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.util.prefs.Preferences;
+import jdk.nashorn.internal.objects.Global;
+import jdk.nashorn.internal.runtime.Context;
+import jdk.nashorn.internal.runtime.ErrorManager;
+import jdk.nashorn.internal.runtime.JSType;
+import jdk.nashorn.internal.runtime.ScriptEnvironment;
+import jdk.nashorn.internal.runtime.ScriptRuntime;
+import jdk.nashorn.tools.Shell;
+import jdk.internal.jline.console.UserInterruptException;
+
+/**
+ * Interactive command line Shell for Nashorn.
+ */
+public final class Main extends Shell {
+    private Main() {}
+
+    static final Preferences PREFS = Preferences.userRoot().node("tool/jjs");
+
+    /**
+     * Main entry point with the default input, output and error streams.
+     *
+     * @param args The command line arguments
+     */
+    public static void main(final String[] args) {
+        try {
+            final int exitCode = main(System.in, System.out, System.err, args);
+            if (exitCode != SUCCESS) {
+                System.exit(exitCode);
+            }
+        } catch (final IOException e) {
+            System.err.println(e); //bootstrapping, Context.err may not exist
+            System.exit(IO_ERROR);
+        }
+    }
+
+    /**
+     * Starting point for executing a {@code Shell}. Starts a shell with the
+     * given arguments and streams and lets it run until exit.
+     *
+     * @param in input stream for Shell
+     * @param out output stream for Shell
+     * @param err error stream for Shell
+     * @param args arguments to Shell
+     *
+     * @return exit code
+     *
+     * @throws IOException if there's a problem setting up the streams
+     */
+    public static int main(final InputStream in, final OutputStream out, final OutputStream err, final String[] args) throws IOException {
+        return new Main().run(in, out, err, args);
+    }
+
+    /**
+     * read-eval-print loop for Nashorn shell.
+     *
+     * @param context the nashorn context
+     * @param global  global scope object to use
+     * @return return code
+     */
+    protected int readEvalPrint(final Context context, final Global global) {
+        final ScriptEnvironment env = context.getEnv();
+        final String prompt = bundle.getString("shell.prompt");
+        final PrintWriter err = context.getErr();
+        final Global oldGlobal = Context.getGlobal();
+        final boolean globalChanged = (oldGlobal != global);
+
+        try (final Console in = new Console(System.in, System.out, PREFS)) {
+            if (globalChanged) {
+                Context.setGlobal(global);
+            }
+
+            global.addShellBuiltins();
+
+            while (true) {
+                String source = "";
+                try {
+                    source = in.readLine(prompt);
+                } catch (final IOException ioe) {
+                    err.println(ioe.toString());
+                    if (env._dump_on_error) {
+                        ioe.printStackTrace(err);
+                    }
+                    return IO_ERROR;
+                } catch (final UserInterruptException ex) {
+                    break;
+                }
+
+                if (source.isEmpty()) {
+                    continue;
+                }
+
+                try {
+                    final Object res = context.eval(global, source, global, "<shell>");
+                    if (res != ScriptRuntime.UNDEFINED) {
+                        err.println(JSType.toString(res));
+                    }
+                } catch (final Exception e) {
+                    err.println(e);
+                    if (env._dump_on_error) {
+                        e.printStackTrace(err);
+                    }
+                }
+            }
+        } catch (final Exception e) {
+            err.println(e);
+            if (env._dump_on_error) {
+                e.printStackTrace(err);
+            }
+        } finally {
+            if (globalChanged) {
+                Context.setGlobal(oldGlobal);
+            }
+        }
+
+        return SUCCESS;
+    }
+}