public static synchronized void setContentHandlerFactory(ContentHandlerFactory fac) { if (factory != null) throw new Error("The ContentHandlerFactory is already set");
public static synchronized void setContentHandlerFactory(ContentHandlerFactory factory) { if (URLConnection.factory != null) throw new Error("ContentHandlerFactory already set");
	public static synchronized void setContentHandlerFactory(ContentHandlerFactory fac) {		if (factory != null)			throw new Error("The ContentHandlerFactory is already set");		factory = fac;	}