String domaine = request.getParameter("domaine");
	String dregexp = chaineNonTrimee(domaine).trim().replaceAll("\\s+", "|");
	dregexp = dregexp.replaceAll("\\.", "\\.");
	out.println(domaine+"<br>\n");
	out.println(dregexp+"<br>\n");

test.com
test.com