this extension is great but it takes far too much time to be ready as it seems to be rebuilding the workspace everytime a new project/folder is loaded.
opening a medium size project takes up to 15min to rebuild the workspace...

wondering if it wouldn't be possible to reuse the workspace from the last session and provide an option to rebuild the workspace if necessary...

Environment

• Operating System: windows 10
• JDK version: 1.8
• Visual Studio Code version: 1.17.1 x64
• Java extension version: 0.11

Steps To Reproduce

1. open a medium/large folder.

current folder structure takes up to 15minutes to load: