--- old/src/sample/nashorn/filebrowser.js	2020-04-15 18:53:39.000000000 +0530
+++ /dev/null	2020-04-15 18:53:39.000000000 +0530
@@ -1,100 +0,0 @@
-#// Usage: jjs -fx filebrowser.js -- <start_dir>
-
-/*
- * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   - Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *
- *   - Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution.
- *
- *   - Neither the name of Oracle nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
- * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-// Uses -fx and javafx TreeView to visualize directories
-if (!$OPTIONS._fx) {
-    print("Usage: jjs -fx filebrowser.js -- <start_dir>");
-    exit(1);
-}
-
-// Java classes used
-var File = Java.type("java.io.File");
-var Files = Java.type("java.nio.file.Files");
-
-// check directory argument, if passed
-var dir = arguments.length > 0? new File(arguments[0]) : new File(".");
-if (! dir.isDirectory()) {
-    print(dir + " is not a directory!");
-    exit(2);
-}
-
-// JavaFX classes used
-var FXCollections = Java.type("javafx.collections.FXCollections");
-var Scene     = Java.type("javafx.scene.Scene");
-var TreeItem  = Java.type("javafx.scene.control.TreeItem");
-var TreeView  = Java.type("javafx.scene.control.TreeView");
-
-// create a subclass of JavaFX TreeItem class
-var LazyTreeItem = Java.extend(TreeItem);
-
-// lazily filling children of a directory LazyTreeItem
-function buildChildren(dir) {
-    var children = FXCollections.observableArrayList();
-    var stream = Files.list(dir.toPath());
-    stream.forEach(function(path) {
-        var file = path.toFile();
-        var item = file.isDirectory()?
-            makeLazyTreeItem(file) : new TreeItem(file.name);
-        children.add(item);
-    });
-    stream.close();
-    return children;
-}
-
-// create an instance LazyTreeItem with override methods
-function makeLazyTreeItem(dir) {
-    var item = new LazyTreeItem(dir.name) {
-        expanded: false,
-        isLeaf: function() false,
-        getChildren: function() {
-            if (! this.expanded) {
-                // call super class (TreeItem) method
-                Java.super(item).getChildren().setAll(buildChildren(dir));
-                this.expanded = true;
-            }
-            // call super class (TreeItem) method
-            return Java.super(item).getChildren();
-        }
-    }
-    return item;
-}
-
-// JavaFX start method
-function start(stage) {
-    stage.title = dir.absolutePath;
-    var rootItem = makeLazyTreeItem(dir);
-    rootItem.expanded = true;
-    var tree = new TreeView(rootItem);
-    stage.scene = new Scene(tree, 300, 450);
-    stage.show();
-}