Full Object tree not appearing for external java libraries

With reference to this post: https://support.smartbear.com/testcomplete/docs/testing-with/advanced/using-external-functions/calling-from-java-classes.html

Addressing the image of the library hierarchy, when importing a library, my tree only shows up to the point that Test2 is. There are no entries for getDefaultString, newInstance or otherwise.

Would this be due to the library being imported incorrectly? I have the jvm reference set up in the objects properties as well as the relevant libraries and jars.

Any help would be appreciated as there does not appear to be any other answers to this out there.

Thanks,

Wyll