Assert.assertEquals(1, b.size());
Assert.assertEquals("y", b.get(0));
}
{
URI uri = ubu.replaceMatrixParam("a", "_z_", "_zz_").build();
List<PathSegment> ps = UriComponent.decodePath(uri, true);
MultivaluedMap<String, String> mps = ps.get(2).getMatrixParameters();
List<String> a = mps.get("a");
Assert.assertEquals(2, a.size());
Assert.assertEquals("_z_", a.get(0));