Spec reads:

"Disposes of the input context and release the resources used by it."

InputContext.dispose() is consistent with the behavior of other AWT
dispose() methods. Generally these methods free resources, but leave
the "Java object" intact. In fact, resources can be re-acquired through
the same java object. This is true for Window.hide()/show() and is
also true for InputContext, since resources will be re-acquired if
dispatchEvent(Event) is called after dispose().

Suggest change to:
"Releases the resources used by the input context."