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    Take a look at this blog post on how to set up Grid2 A user related (in the email group on the source) that using older selenium libs solves this exception.

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java.lang.NullPointerException: requestMarshaller	at	at io.grpc.MethodDescriptor.(	at io.grpc.MethodDescriptor.create(	at io.grpc.benchmarks.netty.HandlerRegistryBenchmark.setup(	at io.grpc.benchmarks.netty.generated.HandlerRegistryBenchmark_lookupMethod_jmhTest._jmh_tryInit_f_handlerregistrybenchmark0_G(	at io.grpc.benchmarks.netty.generated.HandlerRegistryBenchmark_lookupMethod_jmhTest.lookupMethod_Throughput(	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(	at sun.reflect.DelegatingMethodAccessorImpl.invoke(	at java.lang.reflect.Method.invoke(	at org.openjdk.jmh.runner.BenchmarkHandler$	at org.openjdk.jmh.runner.BenchmarkHandler$	at	at java.util.concurrent.ThreadPoolExecutor.runWorker(	at java.util.concurrent.ThreadPoolExecutor$	at