diff -r a9b41094a261 masterfs/test/unit/src/org/netbeans/modules/masterfs/filebasedfs/fileobjects/ExternalTouchTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/masterfs/test/unit/src/org/netbeans/modules/masterfs/filebasedfs/fileobjects/ExternalTouchTest.java	Thu Aug 20 18:59:49 2009 +0200
@@ -0,0 +1,181 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
+ *
+ * The contents of this file are subject to the terms of either the GNU
+ * General Public License Version 2 only ("GPL") or the Common
+ * Development and Distribution License("CDDL") (collectively, the
+ * "License"). You may not use this file except in compliance with the
+ * License. You can obtain a copy of the License at
+ * http://www.netbeans.org/cddl-gplv2.html
+ * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
+ * specific language governing permissions and limitations under the
+ * License.  When distributing the software, include this License Header
+ * Notice in each file and include the License file at
+ * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the GPL Version 2 section of the License file that
+ * accompanied this code. If applicable, add the following below the
+ * License Header, with the fields enclosed by brackets [] replaced by
+ * your own identifying information:
+ * "Portions Copyrighted [year] [name of copyright owner]"
+ *
+ * Contributor(s):
+ *
+ * The Original Software is NetBeans. The Initial Developer of the Original
+ * Software is Sun Microsystems, Inc. Portions Copyright 1997-2009 Sun
+ * Microsystems, Inc. All Rights Reserved.
+ *
+ * If you wish your version of this file to be governed by only the CDDL
+ * or only the GPL Version 2, indicate your decision by adding
+ * "[Contributor] elects to include this software in this distribution
+ * under the [CDDL or GPL Version 2] license." If you do not indicate a
+ * single choice of license, a recipient has the option to distribute
+ * your version of this file under either the CDDL, the GPL Version 2 or
+ * to extend the choice of license to its licensees as provided above.
+ * However, if you add GPL Version 2 code and therefore, elected the GPL
+ * Version 2 license, then the option applies only if the new code is
+ * made subject to such option by the copyright holder.
+ */
+package org.netbeans.modules.masterfs.filebasedfs.fileobjects;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.lang.ref.Reference;
+import java.lang.ref.WeakReference;
+import org.netbeans.junit.NbTestCase;
+import org.openide.filesystems.FileChangeAdapter;
+import org.openide.filesystems.FileEvent;
+import org.openide.filesystems.FileLock;
+import org.openide.filesystems.FileObject;
+import org.openide.filesystems.FileUtil;
+
+public class ExternalTouchTest extends NbTestCase {
+
+    public ExternalTouchTest(String testName) {
+        super(testName);
+    }
+
+    public void testChangeInChildrenNoticed() throws Exception {
+        clearWorkDir();
+        FileObject testFolder = FileUtil.toFileObject(getWorkDir());
+        FileObject fileObject1 = testFolder.createData("fileObject1");
+        assertNotNull("Just to initialize the stamp", fileObject1.lastModified());
+        FileObject[] arr = testFolder.getChildren();
+        assertEquals("One child", 1, arr.length);
+        assertEquals("Right child", fileObject1, arr[0]);
+
+        File file = FileUtil.toFile(fileObject1);
+        assertNotNull("File found", file);
+        arr = null;
+        fileObject1 = null;
+        Reference<FileObject> ref = new WeakReference<FileObject>(fileObject1);
+        assertGC("File Object can disappear", ref);
+
+        Thread.sleep(100);
+        
+        class L extends FileChangeAdapter {
+            int cnt;
+            FileEvent event;
+            
+            @Override
+            public void fileChanged(FileEvent fe) {
+                cnt++;
+                event = fe;
+            }
+        }
+        L listener = new L();
+        testFolder.addFileChangeListener(listener);
+
+        FileOutputStream os = new FileOutputStream(file);
+        os.write(10);
+        os.close();
+
+        testFolder.refresh();
+
+        assertEquals("Change notified", 1, listener.cnt);
+        assertEquals("Right file", file, FileUtil.toFile(listener.event.getFile()));
+    }
+    public void testNewChildNoticed() throws Exception {
+        clearWorkDir();
+        FileObject testFolder = FileUtil.toFileObject(getWorkDir());
+        FileObject fileObject1 = testFolder.createData("fileObject1");
+        assertNotNull("Just to initialize the stamp", fileObject1.lastModified());
+        FileObject[] arr = testFolder.getChildren();
+        assertEquals("One child", 1, arr.length);
+        assertEquals("Right child", fileObject1, arr[0]);
+
+        File file = FileUtil.toFile(fileObject1);
+        assertNotNull("File found", file);
+        arr = null;
+        fileObject1 = null;
+        Reference<FileObject> ref = new WeakReference<FileObject>(fileObject1);
+        assertGC("File Object can disappear", ref);
+
+        Thread.sleep(100);
+
+        class L extends FileChangeAdapter {
+            int cnt;
+            FileEvent event;
+
+            @Override
+            public void fileDataCreated(FileEvent fe) {
+                cnt++;
+                event = fe;
+            }
+
+        }
+        L listener = new L();
+        testFolder.addFileChangeListener(listener);
+
+        File nfile = new File(file.getParentFile(), "new.txt");
+        nfile.createNewFile();
+
+        testFolder.refresh();
+
+        assertEquals("Change notified", 1, listener.cnt);
+        assertEquals("Right file", nfile, FileUtil.toFile(listener.event.getFile()));
+    }
+    public void testDeleteOfAChildNoticed() throws Exception {
+        clearWorkDir();
+        FileObject testFolder = FileUtil.toFileObject(getWorkDir());
+        FileObject fileObject1 = testFolder.createData("fileObject1");
+        assertNotNull("Just to initialize the stamp", fileObject1.lastModified());
+        FileObject[] arr = testFolder.getChildren();
+        assertEquals("One child", 1, arr.length);
+        assertEquals("Right child", fileObject1, arr[0]);
+
+        File file = FileUtil.toFile(fileObject1);
+        assertNotNull("File found", file);
+        arr = null;
+        fileObject1 = null;
+        Reference<FileObject> ref = new WeakReference<FileObject>(fileObject1);
+        assertGC("File Object can disappear", ref);
+
+        Thread.sleep(100);
+
+        class L extends FileChangeAdapter {
+            int cnt;
+            FileEvent event;
+
+            @Override
+            public void fileDeleted(FileEvent fe) {
+                cnt++;
+                event = fe;
+            }
+
+        }
+        L listener = new L();
+        testFolder.addFileChangeListener(listener);
+
+        file.delete();
+
+        testFolder.refresh();
+
+        assertEquals("Change notified", 1, listener.cnt);
+        assertEquals("Right file", file, FileUtil.toFile(listener.event.getFile()));
+    }
+}