messages.add(new SimpleMessage("client.id", "will generated", Severity.INFO));
messages.add(new SimpleMessage("client.name", "not null"));
messages.add(new SimpleMessage("client.name", "not empty"));
ELProcessor el = new ELProcessor();
el.defineBean("messages", messages);
String result = el.eval("messages.errors.from('client.name')").toString();
assertThat(result, is("not null, not empty"));
result = el.eval("messages.errors.from('client.name').join(' - ')").toString();