diff -r 000000000000 -r 1d0e583ac981 launcher/fx/src/main/java/org/apidesign/bck2brwsr/launcher/fximpl/FXInspect.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/launcher/fx/src/main/java/org/apidesign/bck2brwsr/launcher/fximpl/FXInspect.java	Sun Sep 15 18:24:48 2013 +0200
@@ -0,0 +1,112 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.launcher.fximpl;
+
+import com.sun.javafx.scene.web.Debugger;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.net.InetAddress;
+import java.net.Socket;
+import java.nio.charset.StandardCharsets;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import javafx.application.Platform;
+import javafx.scene.web.WebEngine;
+import javafx.util.Callback;
+import org.openide.util.Exceptions;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+final class FXInspect implements Runnable {
+    private static final Logger LOG = Logger.getLogger(FXInspect.class.getName());
+    
+    
+    private final WebEngine engine;
+    private final ObjectInputStream input;
+    
+    private FXInspect(WebEngine engine, int port) throws IOException {
+        this.engine = engine;
+        
+        Socket socket = new Socket(InetAddress.getByName(null), port);
+        ObjectOutputStream output = new ObjectOutputStream(socket.getOutputStream());
+        this.input = new ObjectInputStream(socket.getInputStream());
+        initializeDebugger(output);
+    }
+    
+    static boolean initialize(WebEngine engine) {
+        final int inspectPort = Integer.getInteger("netbeans.inspect.port", -1); // NOI18N
+        if (inspectPort != -1) {
+            try {
+                FXInspect inspector = new FXInspect(engine, inspectPort);
+                Thread t = new Thread(inspector, "FX<->NetBeans Inspector");
+                t.start();
+                return true;
+            } catch (IOException ex) {
+                LOG.log(Level.INFO, "Cannot connect to NetBeans IDE to port " + inspectPort, ex); // NOI18N
+            }
+        }
+        return false;
+    }
+    
+    private void initializeDebugger(final ObjectOutputStream output) {
+        Platform.runLater(new Runnable() {
+            @Override
+            public void run() {
+                Debugger debugger = engine.impl_getDebugger();
+                debugger.setEnabled(true);
+                debugger.setMessageCallback(new Callback<String,Void>() {
+                    @Override
+                    public Void call(String message) {
+                        try {
+                            byte[] bytes = message.getBytes(StandardCharsets.UTF_8);
+                            output.writeInt(bytes.length);
+                            output.write(bytes);
+                            output.flush();
+                        } catch (IOException ioex) {
+                            ioex.printStackTrace();
+                        }
+                        return null;
+                    }
+                });
+            }
+        });
+    }
+
+    @Override
+    public void run() {
+        try {
+            while (true) {
+                int length = input.readInt();
+                byte[] bytes = new byte[length];
+                input.readFully(bytes);
+                final String message = new String(bytes, StandardCharsets.UTF_8);
+                Platform.runLater(new Runnable() {
+                    @Override
+                    public void run() {
+                        engine.impl_getDebugger().sendMessage(message);
+                    }
+                });
+            }
+        } catch (IOException ioex) {
+            ioex.printStackTrace();
+        }
+    }
+}