issue #377, call setter on nulls, correct in 3.4.0 but error in 3.4.1-3.4.5

[PumbaaZp]

MyBatis version

3.4.0 is fine and has a '// issue #377, call setter on nulls' comment
3.4.1/3.4.2/3.4.5 have this problem.

Database vendor and version

oracle 11g

Test case or example project

none

Steps to reproduce

use mybatis to get list of 'select null as col from dual union select 1 as col from dual'

Expected result

[{"col":"1"},{"col":null}]

Actual result

[{"col":"1"},{null}]

[harawata]

Please see the description of #800 .
If you still have the problem, please create a test case or an example project.

[PumbaaZp]

That option can fix this, thx