Firestore conflicting with Cloud Scheduler library

Describe your environment

• Operating System version: AppEngine Java 8 standard
• Firebase SDK version: 6.10.0
• Library version: 6.10.0
• Firebase Product: Firestore

Describe the problem

Steps to reproduce:

I recently had to use Cloud Scheduler to trigger tasks for my AppEngine project.

Adding the dependency to the project :

implementation 'com.google.apis:google-api-services-cloudscheduler:v1-rev4-1.25.0'
implementation 'com.google.auth:google-auth-library-oauth2-http:0.17.2'

(The latest I had to add cause GoogleCredential depreciation)

From there, Firestore stopped working due to some opencensus library deprecation, logs are as follow :

java.lang.IllegalAccessError: tried to access field io.opencensus.trace.unsafe.ContextUtils.CONTEXT_SPAN_KEY from class io.grpc.internal.CensusTracingModule$TracingClientInterceptor

Checking the google-cloud-firestore library, it seems the problem was already fixed. So I tried to update my configuration as follow :

implementation("com.google.firebase:firebase-admin:6.10.0")  {
	exclude group: "com.google.cloud", module: "google-cloud-firestore"
}
implementation 'com.google.cloud:google-cloud-firestore:1.26.0'

From there, the dependency issue seems to be gone, although none of my query are performed correctly (at least in less than 60 seconds).

Relevant Code:

Reduced for lisibility :

FirestoreClient
                .getFirestore()
                .collection("my_collection")
                .whereEqualTo("id", object.getId())
                .get()
                .get()

The collection contains 15 documents, id is indexed, and the query times out when the AppEngine thread serving is dying, but it spent 58 seconds performing it (which is almost 58 more seconds than our firebase client on the frontend for the same query)

[Sdwz]

Updated to Spring Cloud SR3, issue is fixed !

[Sdwz]

Thanks for your reply.

Let me takes this as a next step :

1. Just read a couple issue here and a good first idea would be to raise the logging level to understand what’s happening in the background
2. As for the dependencies issues, it’s similar to https://github.com/firebase/firebase-admin-java/issues/310
3. Will try to replicate locally
4. Going to make a small spring boot app and see if it happens once deployed and share it here.

Will report my finding asap.