See 
<https://builds.apache.org/job/beam_PostCommit_Java_JDK_Versions_Test/jdk=OpenJDK%208%20(on%20Ubuntu%20only),label=beam/32/display/redirect?page=changes>

Changes:

[klk] Add WriteFilesPayload to Runner API well-known transforms

[klk] Make WriteFiles config publicly readable

[klk] Add WriteFiles translation

[altay] fix python lint errors

[klk] Add GroupByKey translation

[davor] Fetch only relevant PR

------------------------------------------
[...truncated 904.10 KB...]
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        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)
Caused by: java.util.concurrent.ExecutionException: 
io.grpc.StatusRuntimeException: NOT_FOUND: Database not found: 
projects/apache-beam-testing/instances/beam-test/databases/beam-testdb
resource_type: "type.googleapis.com/google.spanner.admin.database.v1.Database"
resource_name: 
"projects/apache-beam-testing/instances/beam-test/databases/beam-testdb"
description: "Database does not exist."

        at 
com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:500)
        at 
com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:479)
        at 
com.google.cloud.spanner.spi.v1.GrpcSpannerRpc.get(GrpcSpannerRpc.java:398)
        ... 13 more
Caused by: io.grpc.StatusRuntimeException: NOT_FOUND: Database not found: 
projects/apache-beam-testing/instances/beam-test/databases/beam-testdb
resource_type: "type.googleapis.com/google.spanner.admin.database.v1.Database"
resource_name: 
"projects/apache-beam-testing/instances/beam-test/databases/beam-testdb"
description: "Database does not exist."

        at io.grpc.Status.asRuntimeException(Status.java:540)
        at 
io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:439)
        at 
io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:56)
        at 
com.google.cloud.spanner.spi.v1.SpannerErrorInterceptor$1$1.onClose(SpannerErrorInterceptor.java:100)
        at 
io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:56)
        at 
com.google.cloud.spanner.spi.v1.WatchdogInterceptor$MonitoredCall$1.onClose(WatchdogInterceptor.java:190)
        at 
io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:428)
        at io.grpc.internal.ClientCallImpl.access$100(ClientCallImpl.java:76)
        at 
io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:514)
        at 
io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:431)
        at 
io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:546)
        at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:52)
        at 
io.grpc.internal.SerializingExecutor$TaskRunner.run(SerializingExecutor.java:152)
        ... 3 more
(b15e2ad81f5590d3): com.google.cloud.spanner.SpannerException: NOT_FOUND: 
io.grpc.StatusRuntimeException: NOT_FOUND: Database not found: 
projects/apache-beam-testing/instances/beam-test/databases/beam-testdb
resource_type: "type.googleapis.com/google.spanner.admin.database.v1.Database"
resource_name: 
"projects/apache-beam-testing/instances/beam-test/databases/beam-testdb"
description: "Database does not exist."

        at 
com.google.cloud.spanner.SpannerExceptionFactory.newSpannerExceptionPreformatted(SpannerExceptionFactory.java:119)
        at 
com.google.cloud.spanner.SpannerExceptionFactory.newSpannerException(SpannerExceptionFactory.java:71)
        at 
com.google.cloud.spanner.SpannerExceptionFactory.newSpannerException(SpannerExceptionFactory.java:58)
        at 
com.google.cloud.spanner.SessionPool$Waiter.take(SessionPool.java:376)
        at 
com.google.cloud.spanner.SessionPool$Waiter.access$2800(SessionPool.java:362)
        at 
com.google.cloud.spanner.SessionPool.getReadSession(SessionPool.java:697)
        at 
com.google.cloud.spanner.DatabaseClientImpl.writeAtLeastOnce(DatabaseClientImpl.java:37)
        at 
org.apache.beam.sdk.io.gcp.spanner.SpannerIO$SpannerWriteFn.flushBatch(SpannerIO.java:322)
        at 
org.apache.beam.sdk.io.gcp.spanner.SpannerIO$SpannerWriteFn.finishBundle(SpannerIO.java:281)
Caused by: com.google.cloud.spanner.SpannerException: NOT_FOUND: 
io.grpc.StatusRuntimeException: NOT_FOUND: Database not found: 
projects/apache-beam-testing/instances/beam-test/databases/beam-testdb
resource_type: "type.googleapis.com/google.spanner.admin.database.v1.Database"
resource_name: 
"projects/apache-beam-testing/instances/beam-test/databases/beam-testdb"
description: "Database does not exist."

        at 
com.google.cloud.spanner.SpannerExceptionFactory.newSpannerExceptionPreformatted(SpannerExceptionFactory.java:119)
        at 
com.google.cloud.spanner.SpannerExceptionFactory.newSpannerException(SpannerExceptionFactory.java:43)
        at 
com.google.cloud.spanner.SpannerExceptionFactory.newSpannerException(SpannerExceptionFactory.java:80)
        at 
com.google.cloud.spanner.spi.v1.GrpcSpannerRpc.get(GrpcSpannerRpc.java:404)
        at 
com.google.cloud.spanner.spi.v1.GrpcSpannerRpc.createSession(GrpcSpannerRpc.java:322)
        at com.google.cloud.spanner.SpannerImpl$2.call(SpannerImpl.java:223)
        at com.google.cloud.spanner.SpannerImpl$2.call(SpannerImpl.java:220)
        at 
com.google.cloud.spanner.SpannerImpl.runWithRetries(SpannerImpl.java:202)
        at 
com.google.cloud.spanner.SpannerImpl.createSession(SpannerImpl.java:219)
        at com.google.cloud.spanner.SessionPool$4.run(SessionPool.java:987)
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        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)
Caused by: java.util.concurrent.ExecutionException: 
io.grpc.StatusRuntimeException: NOT_FOUND: Database not found: 
projects/apache-beam-testing/instances/beam-test/databases/beam-testdb
resource_type: "type.googleapis.com/google.spanner.admin.database.v1.Database"
resource_name: 
"projects/apache-beam-testing/instances/beam-test/databases/beam-testdb"
description: "Database does not exist."

        at 
com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:500)
        at 
com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:479)
        at 
com.google.cloud.spanner.spi.v1.GrpcSpannerRpc.get(GrpcSpannerRpc.java:398)
        ... 13 more
Caused by: io.grpc.StatusRuntimeException: NOT_FOUND: Database not found: 
projects/apache-beam-testing/instances/beam-test/databases/beam-testdb
resource_type: "type.googleapis.com/google.spanner.admin.database.v1.Database"
resource_name: 
"projects/apache-beam-testing/instances/beam-test/databases/beam-testdb"
description: "Database does not exist."

        at io.grpc.Status.asRuntimeException(Status.java:540)
        at 
io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:439)
        at 
io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:56)
        at 
com.google.cloud.spanner.spi.v1.SpannerErrorInterceptor$1$1.onClose(SpannerErrorInterceptor.java:100)
        at 
io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:56)
        at 
com.google.cloud.spanner.spi.v1.WatchdogInterceptor$MonitoredCall$1.onClose(WatchdogInterceptor.java:190)
        at 
io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:428)
        at io.grpc.internal.ClientCallImpl.access$100(ClientCallImpl.java:76)
        at 
io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:514)
        at 
io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:431)
        at 
io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:546)
        at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:52)
        at 
io.grpc.internal.SerializingExecutor$TaskRunner.run(SerializingExecutor.java:152)
        ... 3 more
(228c4f0c77a4bf88): Workflow failed. Causes: (228c4f0c77a4b25a): 
S01:GenerateSequence/Read(BoundedCountingSource)+ParDo(GenerateMutations)+SpannerIO.Write/Write
 mutations to Cloud Spanner failed.
        at 
org.apache.beam.runners.dataflow.TestDataflowRunner.run(TestDataflowRunner.java:133)
        at 
org.apache.beam.runners.dataflow.TestDataflowRunner.run(TestDataflowRunner.java:89)
        at 
org.apache.beam.runners.dataflow.TestDataflowRunner.run(TestDataflowRunner.java:54)
        at org.apache.beam.sdk.Pipeline.run(Pipeline.java:297)
        at org.apache.beam.sdk.Pipeline.run(Pipeline.java:283)
        at org.apache.beam.sdk.testing.TestPipeline.run(TestPipeline.java:340)
        at 
org.apache.beam.sdk.io.gcp.spanner.SpannerWriteIT.testWrite(SpannerWriteIT.java:120)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
        at 
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
        at 
org.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:321)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
        at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
        at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
        at 
org.apache.maven.surefire.junitcore.pc.Scheduler$1.run(Scheduler.java:393)
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:473)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

2017-06-02\T\00:20:33.541 [INFO] Running 
org.apache.beam.sdk.io.gcp.datastore.V1WriteIT
2017-06-02\T\00:20:33.542 [INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 
0, Time elapsed: 328.963 s - in org.apache.beam.sdk.io.gcp.datastore.V1WriteIT
2017-06-02\T\00:20:33.542 [INFO] Running 
org.apache.beam.sdk.io.gcp.bigtable.BigtableReadIT
2017-06-02\T\00:20:33.544 [INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 
0, Time elapsed: 271.572 s - in 
org.apache.beam.sdk.io.gcp.bigtable.BigtableReadIT
2017-06-02\T\00:20:34.206 [INFO] 
2017-06-02\T\00:20:34.206 [INFO] Results:
2017-06-02\T\00:20:34.206 [INFO] 
2017-06-02\T\00:20:34.206 [ERROR] Errors: 
2017-06-02\T\00:20:34.206 [ERROR]   SpannerWriteIT.testWrite:120 » Runtime 
(e22dcb0745740b17): com.google.cloud.sp...
2017-06-02\T\00:20:34.206 [INFO] 
2017-06-02\T\00:20:34.206 [ERROR] Tests run: 10, Failures: 0, Errors: 1, 
Skipped: 0
2017-06-02\T\00:20:34.206 [INFO] 
2017-06-02\T\00:20:34.715 [INFO] 
2017-06-02\T\00:20:34.715 [INFO] --- maven-dependency-plugin:3.0.1:analyze-only 
(default) @ beam-runners-google-cloud-dataflow-java ---
2017-06-02\T\00:20:34.889 [INFO] No dependency problems found
2017-06-02\T\00:20:34.889 [INFO] 
2017-06-02\T\00:20:34.889 [INFO] --- maven-failsafe-plugin:2.20:verify 
(integration-test) @ beam-runners-google-cloud-dataflow-java ---
2017-06-02\T\00:20:34.891 [INFO] Failsafe report directory: 
<https://builds.apache.org/job/beam_PostCommit_Java_JDK_Versions_Test/jdk=OpenJDK%208%20(on%20Ubuntu%20only),label=beam/ws/runners/google-cloud-dataflow-java/target/failsafe-reports>
2017-06-02\T\00:20:34.912 [INFO] 
------------------------------------------------------------------------
2017-06-02\T\00:20:34.912 [INFO] Reactor Summary:
2017-06-02\T\00:20:34.912 [INFO] 
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: Parent 
.............................. SUCCESS [ 46.478 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java :: Build Tools 
......... SUCCESS [  9.498 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs 
................................ SUCCESS [  0.830 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Common 
...................... SUCCESS [  0.958 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Common :: Fn API 
............ SUCCESS [ 14.049 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Common :: Runner API 
........ SUCCESS [  3.426 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java 
........................ SUCCESS [  1.276 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java :: Core 
................ SUCCESS [01:51 min]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java :: IO 
.................. SUCCESS [  0.740 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java :: IO :: Common 
........ SUCCESS [  3.932 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: Runners 
............................. SUCCESS [  0.597 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: Runners :: Core Construction 
Java ... SUCCESS [ 17.787 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: Runners :: Core Java 
................ SUCCESS [ 39.837 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: Runners :: Direct Java 
.............. SUCCESS [03:56 min]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java :: IO :: 
Elasticsearch . SUCCESS [ 32.470 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java :: Extensions 
.......... SUCCESS [  0.541 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java :: Extensions :: 
Google Cloud Platform Core SUCCESS [ 32.042 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java :: Extensions :: 
Protobuf SUCCESS [ 18.754 s]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java :: IO :: Google 
Cloud Platform SUCCESS [01:29 min]
2017-06-02\T\00:20:34.912 [INFO] Apache Beam :: SDKs :: Java :: IO :: Hadoop 
Common . SUCCESS [ 14.028 s]
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: Hadoop 
File System SUCCESS [ 40.429 s]
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: Hadoop 
........ SUCCESS [ 15.540 s]
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: Hadoop :: 
input-format SUCCESS [ 17.014 s]
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: HBase 
......... SUCCESS [ 57.872 s]
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: Runners :: Google Cloud 
Dataflow .... FAILURE [06:10 min]
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: JDBC 
.......... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: JMS 
........... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: Kafka 
......... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: Kinesis 
....... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: MongoDB 
....... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: MQTT 
.......... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: IO :: XML 
........... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: Maven 
Archetypes .... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: Maven 
Archetypes :: Starter SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: Examples 
............................ SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: Examples :: Java 
.................... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: Maven 
Archetypes :: Examples SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: Extensions :: 
Jackson SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: Extensions :: 
Join library SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: Extensions :: 
Sorter  SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: Runners :: Flink 
.................... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: Runners :: Spark 
.................... SKIPPED
2017-06-02\T\00:20:34.913 [INFO] Apache Beam :: SDKs :: Java :: Aggregated 
Javadoc .. SKIPPED
2017-06-02\T\00:20:34.913 [INFO] 
------------------------------------------------------------------------
2017-06-02\T\00:20:34.913 [INFO] BUILD FAILURE
2017-06-02\T\00:20:34.913 [INFO] 
------------------------------------------------------------------------
2017-06-02\T\00:20:34.913 [INFO] Total time: 19:41 min
2017-06-02\T\00:20:34.913 [INFO] Finished at: 2017-06-02T00:20:34+00:00
2017-06-02\T\00:20:35.707 [INFO] Final Memory: 175M/1520M
2017-06-02\T\00:20:35.707 [INFO] 
------------------------------------------------------------------------
2017-06-02\T\00:20:35.708 [ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-failsafe-plugin:2.20:verify (integration-test) 
on project beam-runners-google-cloud-dataflow-java: There are test failures.
2017-06-02\T\00:20:35.708 [ERROR] 
2017-06-02\T\00:20:35.708 [ERROR] Please refer to 
<https://builds.apache.org/job/beam_PostCommit_Java_JDK_Versions_Test/jdk=OpenJDK%208%20(on%20Ubuntu%20only),label=beam/ws/runners/google-cloud-dataflow-java/target/failsafe-reports>
 for the individual test results.
2017-06-02\T\00:20:35.708 [ERROR] Please refer to dump files (if any exist) 
[date]-jvmRun[N].dump, [date].dumpstream and [date]-jvmRun[N].dumpstream.
2017-06-02\T\00:20:35.708 [ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal 
org.apache.maven.plugins:maven-failsafe-plugin:2.20:verify (integration-test) 
on project beam-runners-google-cloud-dataflow-java: There are test failures.

Please refer to 
<https://builds.apache.org/job/beam_PostCommit_Java_JDK_Versions_Test/jdk=OpenJDK%208%20(on%20Ubuntu%20only),label=beam/ws/runners/google-cloud-dataflow-java/target/failsafe-reports>
 for the individual test results.
Please refer to dump files (if any exist) [date]-jvmRun[N].dump, 
[date].dumpstream and [date]-jvmRun[N].dumpstream.
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at 
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
        at 
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
        at 
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
        at 
org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:197)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
        at 
org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
        at 
org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
        at 
org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoFailureException: There are test 
failures.

Please refer to 
<https://builds.apache.org/job/beam_PostCommit_Java_JDK_Versions_Test/jdk=OpenJDK%208%20(on%20Ubuntu%20only),label=beam/ws/runners/google-cloud-dataflow-java/target/failsafe-reports>
 for the individual test results.
Please refer to dump files (if any exist) [date]-jvmRun[N].dump, 
[date].dumpstream and [date]-jvmRun[N].dumpstream.
        at 
org.apache.maven.plugin.surefire.SurefireHelper.throwException(SurefireHelper.java:204)
        at 
org.apache.maven.plugin.surefire.SurefireHelper.reportExecution(SurefireHelper.java:98)
        at 
org.apache.maven.plugin.failsafe.VerifyMojo.execute(VerifyMojo.java:191)
        at 
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
        ... 20 more
2017-06-02\T\00:20:35.709 [ERROR] 
2017-06-02\T\00:20:35.709 [ERROR] Re-run Maven using the -X switch to enable 
full debug logging.
2017-06-02\T\00:20:35.709 [ERROR] 
2017-06-02\T\00:20:35.709 [ERROR] For more information about the errors and 
possible solutions, please read the following articles:
2017-06-02\T\00:20:35.709 [ERROR] [Help 1] 
http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
2017-06-02\T\00:20:35.709 [ERROR] 
2017-06-02\T\00:20:35.709 [ERROR] After correcting the problems, you can resume 
the build with the command
2017-06-02\T\00:20:35.709 [ERROR]   mvn <goals> -rf 
:beam-runners-google-cloud-dataflow-java
Build step 'Invoke top-level Maven targets' marked build as failure
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