Doesnt build on a java >= 9 modular project

[Meithal]

[REQUIRED] Step 2: Describe your environment

• Operating System version: Windows 10
• java version : 19
• Firebase SDK version: 9.1.1
• Library version: 9.1.1
• Firebase Product: admin-java

[REQUIRED] Step 3: Describe the problem

I want to have a project to use JavaFX so I need the module system to work. With a module-info.java at the root of the code, having a import com.google.firebase.FirebaseApp; won't even work if you don't add a requires firebase.admin in the module declaration.

But then you get hundreds of errors

Steps to reproduce:

• Create a java project in intellij with the javaFX preset,
• add implementation ('com.google.firebase:firebase-admin:9.1.1') in the build.gradle
• add requires firebase.admin in the module-info.java
• try to build
• hundreds of errors of the kind the unnamed module reads package com.google.longrunning from both gax.grpc and proto.google.common.protos

Remarks

A fix for this is to state that this SDK works on Java 8 exclusively and isn't compatible with JavaFX https://github.com/firebase/firebase-admin-java#supported-java-versions

An fix for end users is suggested here https://medium.com/@ygge/firebase-in-java-9-with-modules-9a4eb99cffcb

A hack to have JavaFX working on a non modular java project is explained here : https://edencoding.com/runtime-components-error/

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.