Since upgrading to Java 16 app launch fails due to the same class being present in multiple Maven modules/projects

Since upgrading to Java 16, launching Spring Boot applications fails. I am using a multi-module Maven project with multiple Sprint Boot apps in it. Each for example defines the test RabbitMqConfig class. And when I run any of the apps (even if it is one not having/using such a RabbitMqConfig class), I get the following error in .log:

!ENTRY org.eclipse.jdt.ls.core 1 0 2021-08-01 13:09:57.689
!MESSAGE >> workspace/executeCommand vscode.java.resolveMainClass

!ENTRY org.eclipse.jdt.ls.core 1 0 2021-08-01 13:09:59.988
!MESSAGE >> java/buildWorkspace (incremental)

!ENTRY org.eclipse.jdt.ls.core 4 0 2021-08-01 13:09:59.995
!MESSAGE Error occured while building workspace. Details: 
 message: The type RabbitMqConfig is already defined; code: 0; resource: /.../app1/src/test/java/com/example/config/RabbitMqConfig.java;
 message: The type RabbitMqConfig is already defined; code: 0; resource: /.../app2/src/test/java/com/example/config/RabbitMqConfig.java;
 message: The type RabbitMqConfig is already defined; code: 0; resource: /.../app3/src/test/java/com/example/config/RabbitMqConfig.java;
 message: The type RabbitMqConfig is already defined; code: 0; resource: /.../app4/src/test/java/com/example/config/RabbitMqConfig.java;
 message: The type RabbitMqConfig is already defined; code: 0; resource: /.../app5/src/test/java/com/example/config/RabbitMqConfig.java;

This happens regardless if I want to launch app 1-5 or other appX that is not using RabbitMQ.

Environment:

• VS Code Version:

  Version: 1.58.2
  Commit: c3f126316369cd610563c75b1b1725e0679adfb3
  Date: 2021-07-14T22:09:06.581Z (2 wks ago)
  Electron: 12.0.13
  Chrome: 89.0.4389.128
  Node.js: 14.16.0
  V8: 8.9.255.25-electron.0
  OS: Darwin x64 19.6.0
  

• Extension Version: v0.80.0

• JDK Type & Version: openjdk 16.0.1

• OS Type & Version: Mac Catalina

Expected Behavior:
launch Spring Boot app

Actual Behavior:
Popup saying:

Build failed, do you want to continue?
Source: Debugger for java (Extension)