public void testWithParameters_invalidAttribute() {
MediaType mediaType = MediaType.parse("text/plain");
ImmutableListMultimap<String, String> parameters =
ImmutableListMultimap.of("a", "1", "@", "2", "b", "3");
try {
mediaType.withParameters(parameters);
fail();
} catch (IllegalArgumentException expected) {}
}
public void testWithParameter() {