Why does PHPStorm swear?

Question

PHP

In PHP 7, it seems that the parser's problem with the sequence of parsing calls has already been solved.
It costs PHP 7.0.2, PHPStrom 10.0.3, the following line in the code:
$this->password_handler::getRandomString(16);
In password_handler - an instance of the object on which I need to call a static method.
PHP itself does not swear in Strict standards mode, but PHPStorm underlines this line in red and writes "incorrect access to static class member', and at the same time the error cannot even be suppressed - the light is not displayed.
What's the matter and how to fix it?

Answer 1

This is one of the many bugs of the PhpStorm parser, you need to write to their tracker (first search, maybe someone has already written about this): https://youtrack.jetbrains.com/issues

Answer 2

Does the php doc say that the password_handler field is of the right type?