"Cannot find symbol"

VS Code shows a "Cannot find symbol" error with the red squigly for several symbols but "Go to definition" works which means the definition is available.

Environment

• Operating System: Ubuntu 18.04
• JDK version: 1.8.0_171
• Visual Studio Code version: 1.23.1
• Java extension version: 0.26.0

Steps To Reproduce

1. Open the attached dummy project in VS Code.

Current Result

You should see several errors related to "cannot find symbol". However, navigation or "Go to definition" works on these symbols.

Expected Result

The red squiggly lines should not appear since I think the symbols are indeed available.

Additional Informations

The VS Code settings.json file is also attached.
java-symbols.zip

まず、提供された settings.json を使用して添付の java-symbols.zip プロジェクトを VS Code で開き、記載されている Java と拡張機能のバージョンを使って Ubuntu 上で診断を再現します。赤い波線で報告されるシンボルと、Go to definition で到達できるシンボルを比較します。完了条件は、有効なシンボルが誤った "Cannot find symbol" 診断を生成しなくなり、ナビゲーションが引き続き機能することです。