code: void writeTree() throws DocumentException {
  		// MBeans pour la plateforme
  		margin = 0;
  		final MBeanNode platformNode = mbeans.get(0);
  		writeTree(platformNode.getChildren());
  
  		for (final MBeanNode node : mbeans) {
  			if (node != platformNode) {
  				newPage();
  				addToDocument(new Chunk(node.getName(), boldFont));
  				margin = 0;
  				writeTree(node.getChildren());
  			}
  		}
  	}
docs: Affiche l'arbre des MBeans.
  @throws DocumentException e