Well, your Jedi character could use the force to shut down the circuits controlling the cage, or use the force to blow the top off. Or, if there's a control consel nearby, he could press the release button using the force. That's all that I can think of, for now. There may be more later, but that's all.
Have fun writing the story!
you very much
If a tree would fall in the woods.....would the other trees laugh at it?