#7: IntelliJ IDEA Ultimate Edition support. thanks to @yareally
for https://github.com/yareally/java-oo/commit/e0c2d34162f888808aa25b1f5161b401c0edab09
also:
- remove some reflection code.
- OOResolver#resolveMethod: Fixed a null pointer exception issue when working with
classes that were not yet imported (such as Map, List, etc).