[Mongodb] NPE getting reactive client

[squakez]

Describe the bug
When creating a named "blocking" client connection in a camel application (using quarkus extensions), I am hitting a NPE.

Expected behavior
Should not receive the NPE

Actual behavior
During startup, the application fail with the following exception:

2020-09-01 09:59:29,280 ERROR [io.qua.application] (Quarkus Main Thread) Failed to start application (with profile dev): java.lang.NullPointerException
	at java.base/java.util.Objects.requireNonNull(Objects.java:221)
	at io.quarkus.runtime.RuntimeValue.<init>(RuntimeValue.java:15)
	at io.quarkus.mongodb.runtime.MongoClientRecorder.getReactiveClient(MongoClientRecorder.java:47)
	at io.quarkus.deployment.steps.MongoClientProcessor$mongoClients-1417000131.deploy_0(MongoClientProcessor$mongoClients-1417000131.zig:103)
	at io.quarkus.deployment.steps.MongoClientProcessor$mongoClients-1417000131.deploy(MongoClientProcessor$mongoClients-1417000131.zig:40)
	at io.quarkus.runner.ApplicationImpl.doStart(ApplicationImpl.zig:576)
	at io.quarkus.runtime.Application.start(Application.java:90)
	at io.quarkus.runtime.ApplicationLifecycleManager.run(ApplicationLifecycleManager.java:92)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:61)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:38)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:106)
	at io.quarkus.runner.GeneratedMain.main(GeneratedMain.zig:29)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at io.quarkus.runner.bootstrap.StartupActionImpl$3.run(StartupActionImpl.java:145)
	at java.base/java.lang.Thread.run(Thread.java:834)

To Reproduce
Steps to reproduce the behavior:

1. Create a simple application with a named blocking connection (ie, @Inject @MongoClientName("mongoClient1") MongoClient mongoClient1;)
2. Run and see the failure

Configuration

# Add your application.properties here, if applicable.

Screenshots
(If applicable, add screenshots to help explain your problem.)

Environment (please complete the following information):

• Output of uname -a or ver: 5.4.0-42-generic Add proper logging #46~18.04.1-Ubuntu x86_64 x86_64 x86_64 GNU/Linux
• Output of java -version: openjdk version "11.0.7" 2020-04-14
• GraalVM version (if different from Java):
• Quarkus version or git rev: master (999-SNAPSHOT)
• Build tool (ie. output of mvnw --version or gradlew --version): mvn 3.6.3

Additional context
(Add any other context about the problem here.)

[quarkusbot]

/cc @loicmathieu, @evanchooly

[squakez]

I think I spot the possible source of the error though, going to submit a PR for your evaluation

[loicmathieu]

Hello,
Before we can pursue with your PR, can you create a minimal reproducer as this code is tested in our CI and we didn't have any NPE.
You mention Camel in your issue description, maybe it's an issue on the way Camel interract with the mongodb-client extension.

[geoand]

+1 for what @loicmathieu says