[Bug][Java] Unable to correctly resolve the full name of the method inherited from the parent class

[michwqy]

Describe the bug
When I used Joern to detect a Java project that used MyBatis-Plus, I found that Joern could not correctly resolve the full name of method selectById of UserMapper inherited from the parent class BaseMapper. I'm not sure if this is Joern's bug or I didn't use the correct method.

To Reproduce
The detected Java code

@Mapper
public interface UserMapper extends BaseMapper<Users> {
}

@Service
public class UserService extends ServiceImpl<UserMapper, Users> {
    @Autowired
    private UserMapper userMapper;

    public Users getUserById(Long userId) {
        return userMapper.selectById(userId);
    }
}

The method getUserById call the method selectById of UserMapper inherited from BaseMapper.
And I used

cpg.call.methodFullName(".*selectById.*").l

Expected behavior
Since the method selectById is inherited from BaseMapper, the methodFullName of call userMapper.selectById(userId) should be
com.baomidou.mybatisplus.core.mapper.BaseMapper.selectById

Actual behavior
Joern gave the result that the methodFullName of call userMapper.selectById(userId) was org.wqy.mybatisplus.mapper.UserMapper.selectById

val res1: List[io.shiftleft.codepropertygraph.generated.nodes.Call] = List(
  Call(
    argumentIndex = 2,
    argumentName = None,
    code = "$stack2.selectById(userId)",
    columnNumber = None,
    dispatchType = "DYNAMIC_DISPATCH",
    dynamicTypeHintFullName = IndexedSeq(),
    lineNumber = Some(value = 18),
    methodFullName = "org.wqy.mybatisplus.mapper.UserMapper.selectById:java.lang.Object(java.io.Serializable)",
    name = "selectById",
    order = 2,
    possibleTypes = IndexedSeq(),
    signature = "java.lang.Object(java.io.Serializable)",
    typeFullName = "org.wqy.mybatisplus.mapper.UserMapper"
  )
)

Desktop

• OS: macOS 13
• Joern Version: 4.0.33
• Java version: 17.0.11