Consider this class:

package test54

import javax.annotation.Resource

class Test54 {
	String foo
	
	String bar
	
	@Resource
	String foobar
}

From the Outline View, select bar, press Del key and confirm deletion: the bar property gets deleted, but the Outline View is not updated and still shows it.

Please note that in other "real-world" scenarios I get a slightly different behaviour: the view is somewhat updated, but it still shows the deleted field with a question mark (instead of the standard property icon) on its left. Please see the following example, where I deleted the token field from the Outline View: