[fix bug],`BeanUtil.populate(Object, Map<String, ?>) method` ,if `param Object` is a empty map,will occur nullpointexception, change to ajust `param Object` is null
[fix bug],`BeanUtil.populate(Object, Map<String, ?>) method` ,if `param
Object` is a empty map,will occur nullpointexception, change to ajust
`param Object` is null
venusdrogon/feilong-core,venusdrogon/feilong-core