public void testExpire()
{
ResolverCache c = new ResolverCache();
try {
c.del("@abc", false, false);
byte[] s = c.get("@abc", false, false);
assertTrue("stale cache value", s == null);
c.put("@abc", false, false, "x".getBytes("UTF-8"), 2);
s = c.get("@abc", false, false);