Handle module projects with separate module-info.java for main and test sources

Here is a Java 11 maven module project: https://github.com/microsoft/gctoolkit. The project is a multi-module maven project. One submodule is "api", see its file structure as follows. It describes the module-info.java file in the main sources and the test sources respectively.

api
├───src
│   ├───main
│   │   ├───java
│   │   │   │   module-info.java
│   │   │   └───com.microsoft.gctoolkit
│   │   │           GCToolKit.java
│   └───test
│       ├───java
|       |   |   module-info.java
│       │   └───com.microsoft.gctoolkit.test
│       │           Test.java

However, when opening this project in VS Code, it doesn't work. It reports a compile error: "The project was not built due to "Build path contains duplicate entry: 'module-info.java' for project 'api'". Fix the problem, then try refreshing this project and building it since it may be inconsistent". It doesn't support multiple module-info.java files in one Java project.

The same project works in maven command line. There should be some gap in the JDT compiler that needs to be fixed.