@Test
    public void testGet() {
        Assert.assertNull(map.get(null));
        Assert.assertEquals(VALUE, map.get(KEY));
    }
@author <a href=mailto:orezsilence@163.com>zhangchengxi</a>
core/api/src/test/java/com/alipay/sofa/rpc/core/util/SafeConcurrentHashMapTest.java