Micronaut 4.2.0 breaks grpc services

[krickert]

Micronaut 4.2.0 breaks grpc services

[krickert]

Yeah I ended up adding the patched class to each project. That works for now

[krickert]

From my debugger:

If you use the non-blocking client - the reply does happen but the stream observer throws an onError() as well. But the onNext() is called, so replies do happen, but an error occurs with each call.

The blocking stub throws an exception all the time.

Any help is greatly appreciated.

[krickert]

I updated the test to have fewer dependencies. Same error.

[sdelamo]

there is a necessary release in grpc-java we are waiting for grpc/grpc-java#10663

[krickert]

Bummer - so the release breaks GRPC but we can't fix it until they fix the bug? Why not just downgrade the grpc version since the entire framework is busted with the most recent version?

[krickert]

I'm installing the snapshot of grpc-java and I'll let you know if the patch fixes this.

[krickert]

OK - the patch makes it work. I just took the patch you outlined and applied it to my code. I'll have to make a quick patch project for these projects, but it'll allow me to use my projects on the latest micronaut then.

I'll commit the patch I made to the project. I'm just adding the same patch and it shows that the tests work now.

Feel free to grab the test I wrote as a part of your tests in the future.

[krickert]

Just added the "patch"; I took the java code from the upcoming grpc release and just added it to the jar file. Because it's in the same jar, the patch version will always win.

[jeremyg484]

Bummer - so the release breaks GRPC but we can't fix it until they fix the bug? Why not just downgrade the grpc version since the entire framework is busted with the most recent version?

@krickert Yes, unfortunately downgrading the GRPC version doesn't fix the issue, because the older implementations also have the same unimplemented method. The issue appears because Netty 4.1.101 now invokes the missing isEmpty method whereas it they did not in version 4.1.100 and earlier. I believe temporarily downgrading to Netty 4.1.100 would also work until GRPC releases the patch in 1.60 which they say will happen on Nov 28th.

[krickert]

Yesterday the latest grpc version fixes this. However, it breaks it in other ways, from what I can see. I keep getting an error for io.grpc.internal.AbstractServerImplBuilder not found when updating the library