diff -r 16bd4d64f3f1 openide.loaders/apichanges.xml
--- a/openide.loaders/apichanges.xml	Wed Nov 14 14:56:58 2012 +0100
+++ b/openide.loaders/apichanges.xml	Thu Nov 15 16:02:19 2012 +0100
@@ -109,6 +109,23 @@
 <!-- ACTUAL CHANGES BEGIN HERE: -->
 
   <changes>
+      <change id="lazymenu.properties">
+          <api name="awt"/>
+          <summary>Control what client properties pulldown menus have</summary>
+          <version major="7" minor="42"/>
+          <date day="22" month="11" year="2012"/>
+          <author login="jtulach"/>
+          <compatibility addition="yes"/>
+          <description>
+             <p>Layer declaration of a menu can influence what client properties
+                 the actual <a href="@JDK@/javax/swing/JMenu.html">JMenu</a> 
+                 instances will have. More 
+                 <a href="architecture-summary.html#layer-Menu">details</a>.
+              </p>
+          </description>
+          <class package="org.openide.awt" name="MenuBar"/>
+          <issue number="222138"/>
+      </change>
       <change id="DataObjec.Registration">
           <api name="loaders"/>
           <summary>Introduced <code>DataObject.Registration</code> and <code>DataObject.Registrations</code></summary>
diff -r 16bd4d64f3f1 openide.loaders/arch.xml
--- a/openide.loaders/arch.xml	Wed Nov 14 14:56:58 2012 +0100
+++ b/openide.loaders/arch.xml	Thu Nov 15 16:02:19 2012 +0100
@@ -916,6 +916,26 @@
     A folder Recent stores a set of recently used templates, it's not open to other module. 
     </api><p></p>
 </li>
+<li>
+    <api name="Menu" group="layer" type="export" category="stable"><p>
+        The main menu of the application is composed by reading <code>Menu/</code>
+        folder in the layer. A sub folder is treated as a sub menu. 
+        Instances of individual files (usually <code>.instance</code> 
+        or <code>.shadow</code>) may then represent <a href="@JDK@/javax/swing/Action.html">Action</a>
+        or <a href="@JDK@/javax/swing/JMenuItem.html">JMenuItem</a>
+        or <a href="@JDK@/javax/swing/JSeparator.html">JSeparator</a>.
+    </p>
+    <p>
+        Since version 7.42 one can attach <code>property-prefix</code> attribute
+        to every folder. Then all the file attributes are scanned and if some 
+        of them start with the specified prefix they are placed a 
+        <a href="@JDK@/javax/swing/JComponent.html#putClientProperty(java.lang.Object,%20java.lang.Object)">
+        client
+        properties</a> on the <a href="@JDK@/javax/swing/JMenu.html">JMenu</a>
+        instance (after stripping the prefix off).
+    </p>
+    </api><p></p>
+</li>
 </ul>
 <p>
 None of them is forced to found.
diff -r 16bd4d64f3f1 openide.loaders/manifest.mf
--- a/openide.loaders/manifest.mf	Wed Nov 14 14:56:58 2012 +0100
+++ b/openide.loaders/manifest.mf	Thu Nov 15 16:02:19 2012 +0100
@@ -1,6 +1,6 @@
 Manifest-Version: 1.0
 OpenIDE-Module: org.openide.loaders
-OpenIDE-Module-Specification-Version: 7.41
+OpenIDE-Module-Specification-Version: 7.42
 OpenIDE-Module-Localizing-Bundle: org/openide/loaders/Bundle.properties
 OpenIDE-Module-Provides: org.netbeans.modules.templates.v1_0
 OpenIDE-Module-Layer: org/netbeans/modules/openide/loaders/layer.xml
diff -r 16bd4d64f3f1 openide.loaders/src/org/openide/awt/MenuBar.java
--- a/openide.loaders/src/org/openide/awt/MenuBar.java	Wed Nov 14 14:56:58 2012 +0100
+++ b/openide.loaders/src/org/openide/awt/MenuBar.java	Thu Nov 15 16:02:19 2012 +0100
@@ -54,6 +54,7 @@
 import java.io.ObjectOutput;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.LinkedList;
@@ -539,6 +540,20 @@
             this.slave = new MenuFolder();
             
             setName(df.getName());
+            final FileObject pf = df.getPrimaryFile();
+            Object prefix = pf.getAttribute("property-prefix"); // NOI18N
+            if (prefix instanceof String) {
+                Enumeration<String> en = pf.getAttributes();
+                while (en.hasMoreElements()) {
+                    String attrName = en.nextElement();
+                    if (attrName.startsWith((String)prefix)) {
+                        putClientProperty(
+                            attrName.substring(((String)prefix).length()), 
+                            pf.getAttribute(attrName)
+                        );
+                    }
+                }
+            }
 
             // Listen for changes in Node's DisplayName/Icon
             Node n = master.getNodeDelegate ();
diff -r 16bd4d64f3f1 openide.loaders/test/unit/src/org/openide/awt/MenuBarTest.java
--- a/openide.loaders/test/unit/src/org/openide/awt/MenuBarTest.java	Wed Nov 14 14:56:58 2012 +0100
+++ b/openide.loaders/test/unit/src/org/openide/awt/MenuBarTest.java	Thu Nov 15 16:02:19 2012 +0100
@@ -56,6 +56,7 @@
 import java.util.ArrayList;
 import java.util.logging.Level;
 import javax.swing.AbstractAction;
+import javax.swing.JComponent;
 import javax.swing.JMenu;
 import javax.swing.JMenuItem;
 import javax.swing.JPanel;
@@ -194,6 +195,37 @@
         assertEquals("Still No removals in MenuBar", 0, remove);
         assertEquals("Still Two additions in MenuBar", 2, add);
     }
+    
+    
+    public void testClientPropertiesMayBePropagated() throws Exception {
+        mb.addContainerListener(this);
+        assertEquals("No children now", 0, mb.getComponentCount());
+        
+        class Atom implements FileSystem.AtomicAction {
+            FileObject m1, m2;
+            
+            public void run() throws IOException {
+                m1 = FileUtil.createFolder(df.getPrimaryFile(), "m1");
+                m1.setAttribute("property-prefix", "ahoj.");
+                m1.setAttribute("ahoj.jardo", "Hi!");
+                m2 = FileUtil.createFolder(df.getPrimaryFile(), "m2");
+                m2.setAttribute("property-prefix", "buk-");
+                m2.setAttribute("buk-muk", "Hello!");
+            }
+        }
+        Atom atom = new Atom();
+        df.getPrimaryFile().getFileSystem().runAtomicAction(atom);
+        mb.waitFinished();
+        
+        assertEquals("Two children there", 2, mb.getComponentCount());
+        final JMenuItem c0 = (JMenuItem) mb.getComponent(0);
+        assertEquals("Programatic names deduced from the folder", "m1", c0.getName());
+        final JMenuItem c1 = (JMenuItem) mb.getComponent(1);
+        assertEquals("Programatic names deduced from the folder", "m2", c1.getName());
+        
+        assertEquals("Hi!", c0.getClientProperty("jardo"));
+        assertEquals("Hello!", c1.getClientProperty("muk"));
+    }
 
     static void simulateExpansionOfMenu(JMenu m1) {
         // simulate expansion in the menu