private XML checksAttributesExistence(Class<?> aClass,Attribute[] attributes){
		String[] attributesNames = new String[attributes.length];
		for (int i = attributes.length; i --> 0;) 
			attributesNames[i] = attributes[i].getName();	
		
		checksAttributesExistence(aClass,attributesNames);
		return this;
	}
private XML checksAttributesExistence ( Class < ? > aClass , Attribute [ ] attributes ) { String [ ] attributesNames = new String [ attributes . length ] ; for ( int i = attributes . length ; i -- > 0 ; ) attributesNames [ i ] = attributes [ i ] . getName ( ) ; checksAttributesExistence ( aClass , attributesNames ) ; return this ; }
Verifies that the attributes exist in aClass.
@param aClass Class to check
@param attributes attributes to check
@return this instance of XML