Corrupted workspace in Maven Multi-Module Project

[provide a description of the issue]

Environment

• Operating System: Windows
• JDK version: 1.8.0_172
• Visual Studio Code version: 0.25.0-insider
• Java extension version: 0.26.0

Steps To Reproduce

I fiddled with swagger, switched branches and got this:

message: The project was not built since the source file /jdt.ls-java-project/src/[SWAGGERJAVASOURCEPATHSHERE] could not be read

Additional Informations

I got this fixed after doing countless cleans and eclipse:eclipse by removing the vscode workspaceStorage alltogether.
I can't exactly tell you reproduction steps since its now fixed and i forgot to write down steps beforehand... but you should probably know that the language server / vscode-java compiler has issues with copied java source files referencing nonexistent source files in the workspaceStorage

Comienza revisando cómo Java language server y VS Code workspaceStorage gestionan los proyectos Maven multimódulo, los cambios de rama, las referencias a fuentes relacionadas con Swagger y los archivos fuente inexistentes. El informe no contiene pasos de reproducción fiables ni especifica archivos o pruebas; debe considerarse terminado cuando las referencias a fuentes obsoletas ya no dejen el workspace dañado.