Arguably, however, the Glove of Endless Javelins does not help the combo since you have, at most, two hands for the javelins to appear in before you hurl them with telekinesis. So I guess it depends on how many javelins the DM says you can hold in one hand. That, however, is a rather tangential point - the combo you ask about works just fine, and it's the result of combining two things that are (individually) super-awesome.