if (!contextAttributes.containsKey(httpContext)) contextAttributes.put(httpContext, new Hashtable());
ContextAttributes attributes = (ContextAttributes) attributesMap.get(httpContext); if (attributes == null) { attributes = new ContextAttributes(httpContext); attributesMap.put(httpContext, attributes); } attributes.addReference();
	synchronized void createContextAttributes(HttpContext httpContext) {		if (!contextAttributes.containsKey(httpContext))			contextAttributes.put(httpContext, new Hashtable());	}