root case is following code:
```
    public NSAttributedString(NSURL url, NSAttributedStringDocumentAttributes options) throws NSErrorException {
        super((SkipInit) null);
        long h = NSObject.alloc(ObjCClass.getByType(NSAttributedString.class));
        initObject(NSAttributedStringExtensions.init(ObjCObject.toObjCObject(NSAttributedString.class, h, NSObject.FLAG_NO_RETAIN), url, options, null));
    }
```

it creates two java object for same handle:
- one with ObjCObject.toObjCObject.toObjCObject(ObjCObject() with option FLAG_NO_RETAIN (so it doesn't own native part)
- and second NSAttributedString itself

but both of these do release a handle on dispose() that causes the crash

fix: no need in creating intermediate Java object, `-init` like selectors should operate on pointer level