Crash in OkHttpClientTransport

What version of gRPC-Java are you using?

1.32.2

What is your environment?

android

What did you expect to see?

The library should instantiate

What did you see instead?

The library crashes with the following stack-trace:

java.lang.NoClassDefFoundError: Failed resolution of: Lcom/squareup/okhttp/HttpUrl$Builder;
	at io.grpc.okhttp.OkHttpClientTransport.createHttpProxyRequest(OkHttpClientTransport.java:711)
	at io.grpc.okhttp.OkHttpClientTransport.createHttpProxySocket(OkHttpClientTransport.java:663)
	at io.grpc.okhttp.OkHttpClientTransport.access$000(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$302(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$702(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$1100(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$1502(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$1600(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$1702(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$1802(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$2200(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$2702(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport$4.run(OkHttpClientTransport.java:559)
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.lang.Thread.run(Thread.java:919)
Caused by: java.lang.ClassNotFoundException: com.squareup.okhttp.HttpUrl$Builder
	at io.grpc.okhttp.OkHttpClientTransport.createHttpProxyRequest(OkHttpClientTransport.java:711)
	at io.grpc.okhttp.OkHttpClientTransport.createHttpProxySocket(OkHttpClientTransport.java:663)
	at io.grpc.okhttp.OkHttpClientTransport.access$000(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$302(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$702(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$1100(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$1502(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$1600(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$1702(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$1802(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$2200(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport.access$2702(OkHttpClientTransport.java:109)
	at io.grpc.okhttp.OkHttpClientTransport$4.run(OkHttpClientTransport.java:559)
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.lang.Thread.run(Thread.java:919)

Steps to reproduce the bug

Not fully reproducible but happening on Android 10/11 and mostly on Xiaomi/Realme

[bangarharshit]

you are right. we are not bundling okhttp2 which is required by grpc-okhttp. added it and the crash is resolved. Thanks for all your help 😃

[sergiitk]

Thanks for confirming. Could you double check your setup then? Is this possible that you excluded the okhttp dependency from grpc-okhttp thinking it wasn’t necessary?