Get gRPC pipelines to run locally.

[deflaux]

Currently any gRPC-enabled pipelines run fine on Google Compute Engine but not locally.

java -Xbootclasspath/p:../utils-java/lib/alpn-boot-8.1.3.v20150130.jar \
-cp target/google-genomics-dataflow-v1beta2-0.15-SNAPSHOT-runnable.jar \
com.google.cloud.genomics.dataflow.pipelines.CalculateCoverage \
--secretsFile=client_secrets.json \
--references=1:552960:553984 \
--bucketWidth=1024 \
--inputDatasetId=10473108253681171589 \
--outputDatasetId=<THE_OUTPUT_DATASET>

Yields error:

INFO: Executing pipeline using the DirectPipelineRunner.
Exception in thread "main" java.lang.RuntimeException: io.grpc.StatusRuntimeException: NOT_FOUND: Method not found.
    at com.google.cloud.dataflow.sdk.Pipeline.run(Pipeline.java:166)
    at com.google.cloud.genomics.dataflow.pipelines.CalculateCoverage.main(CalculateCoverage.java:191)
Caused by: io.grpc.StatusRuntimeException: NOT_FOUND: Method not found.
    at io.grpc.Status.asRuntimeException(Status.java:428)
    at io.grpc.stub.Calls$BlockingResponseStream$QueuingListener.onClose(Calls.java:431)
    at io.grpc.ChannelImpl$CallImpl$ClientStreamListenerImpl$3.run(ChannelImpl.java:402)
    at io.grpc.SerializingExecutor$TaskRunner.run(SerializingExecutor.java:154)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)