Bug 273163 [CSS] Remove dependency on org.apache.commons.logging, xerces, xml.resolver
We shouldn't require this.
bundles/org.eclipse.e4.ui.css.core/src/org/eclipse/e4/ui/css/core/dom/properties/providers/CSSPropertyHandlerLazyProviderImpl.java
if (handlers == null)
					logger.debug("Cannot find Handle Class CSS Property="
							+ property + ", for class=" + handlerClassName);
			}
		} finally {
			if (handlers != null)
				propertyHandlers.put(property, handlers);
			else
				propertyHandlers.put(property, "__HANDLER_NOT_FOUND__");
		}
		return handlers;
	}
	/**
	 * Register a package path "name.name1." where to search for PropertyHandler
	 * class
	 * 
	 * @param packageName
	 */
	public void registerPackage(String packageName) {
		packageNames.add(packageName);
		propertyToHandlersMap = null;
	}
	protected Map getPropertyToHandlersMap() {
		if (propertyToHandlersMap == null)
			propertyToHandlersMap = new HashMap();
		return propertyToHandlersMap;
	}
	/**
	 * Reflexive method that return a property handler class
	 *