con.suspendReceiving();
QAUtil.sleep(1000);
System.out.println("available " + response.getNonBlockingBody().available());
Assert.assertTrue(response.getNonBlockingBody().available() < 4000000);
con.resumeReceiving();
Assert.assertEquals(200, response.getStatus());
QAUtil.isEquals(file, response.getBody().readByteBuffer());
server.close();