First run:

Définition du menu
ControlP5 0.5.4 infos, comments, questions at http://www.sojamo.de/libraries/controlP5
8 févr. 2012 22:24:50 controlP5.ControlWindow init
INFO: You are using renderer processing.core.PGraphics3D.
In order to render controlP5 elements you need to call the ControlP5's draw() manually.
Suggestion is to put controlP5.draw(); at the bottom of the draw function of your sketch.
Exception in thread "AWT-EventQueue-2" java.util.NoSuchElementException
    at java.util.LinkedList.getFirst(Unknown Source)
    at java.awt.SequencedEvent.getFirst(Unknown Source)
    at java.awt.SequencedEvent.dispatch(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access$000(Unknown Source)
    at java.awt.EventQueue$1.run(Unknown Source)
    at java.awt.EventQueue$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue$2.run(Unknown Source)
    at java.awt.EventQueue$2.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)
Définition du menu
ControlP5 0.5.4 infos, comments, questions at http://www.sojamo.de/libraries/controlP5
8 févr. 2012 22:24:52 controlP5.ControlWindow init
INFO: You are using renderer processing.core.PGraphics3D.
In order to render controlP5 elements you need to call the ControlP5's draw() manually.
Suggestion is to put controlP5.draw(); at the bottom of the draw function of your sketch.
Exception in thread "Animation Thread" java.lang.NullPointerException
    at processing.core.PFont.addGlyph(Unknown Source)
    at processing.core.PFont.index(Unknown Source)
    at processing.core.PFont.width(Unknown Source)
    at processing.core.PGraphics.textWidthImpl(Unknown Source)
    at processing.core.PGraphics.textWidth(Unknown Source)
    at processing.core.PApplet.textWidth(Unknown Source)
    at controlP5.Label.update(Unknown Source)
    at controlP5.Label.setControlFontSize(Unknown Source)
    at controlP5.Label.setControlFont(Unknown Source)
    at controlP5.Label.init(Unknown Source)
    at controlP5.Label.<init>(Unknown Source)
    at controlP5.Label.<init>(Unknown Source)
    at controlP5.Controller.<init>(Unknown Source)
    at controlP5.Textlabel.<init>(Unknown Source)
    at controlP5.ControlP5Base.addTextlabel(Unknown Source)
    at HeliWeb$Menu.<init>(HeliWeb.java:1084)
    at HeliWeb.setup(HeliWeb.java:110)
    at processing.core.PApplet.handleDraw(Unknown Source)
    at processing.core.PApplet.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Exception in thread "Animation Thread" java.lang.NullPointerException
    at processing.core.PFont.addGlyph(Unknown Source)
    at processing.core.PFont.index(Unknown Source)
    at processing.core.PFont.width(Unknown Source)
    at processing.core.PGraphics.textWidthImpl(Unknown Source)
    at processing.core.PGraphics.textWidth(Unknown Source)
    at processing.core.PApplet.textWidth(Unknown Source)
    at controlP5.Label.update(Unknown Source)
    at controlP5.Label.setControlFontSize(Unknown Source)
    at controlP5.Label.setControlFont(Unknown Source)
    at controlP5.Label.init(Unknown Source)
    at controlP5.Label.<init>(Unknown Source)
    at controlP5.Label.<init>(Unknown Source)
    at controlP5.Controller.<init>(Unknown Source)
    at controlP5.Textlabel.<init>(Unknown Source)
    at controlP5.ControlP5Base.addTextlabel(Unknown Source)
    at HeliWeb$Menu.<init>(HeliWeb.java:1084)
    at HeliWeb.setup(HeliWeb.java:110)
    at processing.core.PApplet.handleDraw(Unknown Source)
    at processing.core.PApplet.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Second run is "better":

Définition du menu
ControlP5 0.5.4 infos, comments, questions at http://www.sojamo.de/libraries/controlP5
8 févr. 2012 22:26:29 controlP5.ControlWindow init
INFO: You are using renderer processing.core.PGraphics3D.
In order to render controlP5 elements you need to call the ControlP5's draw() manually.
Suggestion is to put controlP5.draw(); at the bottom of the draw function of your sketch.
Exception in thread "AWT-EventQueue-2" java.util.NoSuchElementException
    at java.util.LinkedList.getFirst(Unknown Source)
    at java.awt.SequencedEvent.getFirst(Unknown Source)
    at java.awt.SequencedEvent.dispatch(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access$000(Unknown Source)
    at java.awt.EventQueue$1.run(Unknown Source)
    at java.awt.EventQueue$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue$2.run(Unknown Source)
    at java.awt.EventQueue$2.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)
8 févr. 2012 22:26:30 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
8 févr. 2012 22:26:30 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
8 févr. 2012 22:26:30 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
8 févr. 2012 22:26:31 controlP5.ControlP5 checkName
WARNING: Controller with name "_:Action:" already exists. overwriting reference of existing controller.
8 févr. 2012 22:26:31 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
8 févr. 2012 22:26:31 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
8 févr. 2012 22:26:31 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
Définition du menu
ControlP5 0.5.4 infos, comments, questions at http://www.sojamo.de/libraries/controlP5
8 févr. 2012 22:26:31 controlP5.ControlWindow init
INFO: You are using renderer processing.core.PGraphics3D.
In order to render controlP5 elements you need to call the ControlP5's draw() manually.
Suggestion is to put controlP5.draw(); at the bottom of the draw function of your sketch.
Action demandée : 1
Action sélectionnée : 1:Action:S
temporisation...
8 févr. 2012 22:26:31 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
8 févr. 2012 22:26:31 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
8 févr. 2012 22:26:31 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
8 févr. 2012 22:26:31 controlP5.ControlP5 checkName
WARNING: Controller with name "_:Action:" already exists. overwriting reference of existing controller.
8 févr. 2012 22:26:31 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
8 févr. 2012 22:26:31 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
8 févr. 2012 22:26:31 controlP5.BitFontRenderer getWidth
WARNING: You are using a character that is not supported by controlP5's BitFont-Renderer, you could use ControlFont instead (see the ControlP5controlFont example).
Action demandée : 1
Action sélectionnée : 1:Action:S
temporisation...
Affichage du menu
Test menu : OK
Action demandée : 1
Action sélectionnée : 1:Action:S

But at least it works, and it looks nice.

Yes, I know I have a problem with this sketch. But I don't know how to resolve it...