"Add throws declaration" formats entire file

When you use the "Add throws declaration" it formats the entire file instead of just adding the throws clause to the current function.

Environment

• Operating System: Windows 10
• JDK version: openjdk 11.0.4 2019-07-16
• Visual Studio Code version: 1.38.1
• Java extension version: 0.50.0

Steps To Reproduce

1. Create a java file start writing some code and have it not match the default formatter. (like indenting case under a switch)

2. write a function that calls a function that throws a checked exception (like CompletableFuture.get)

3. Use the suggestion to add throws declarations to the current function.

Current Result

Throws declarations are added but the entire file gets formatted

Expected Result

only the throws declarations should be added to the current function and the rest of the file is untouched.

Inizia riproducendo il suggerimento Add throws declaration in un file Java con una formattazione non predefinita e una chiamata come CompletableFuture.get. Traccia i percorsi del suggerimento e del formatter per determinare perché viene attivata la formattazione; il lavoro è completato quando solo la funzione corrente acquisisce la sua throws declaration e il resto del file rimane invariato.