See 
<https://builds.apache.org/job/beam_PostCommit_Java_Version_Test/jdk=OpenJDK%208%20(on%20Ubuntu%20only),label=beam/15/display/redirect>

------------------------------------------
[...truncated 474.56 KB...]
Tests run: 14, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.323 sec - in 
org.apache.beam.sdk.transforms.CreateTest
Running org.apache.beam.sdk.transforms.CombineTest
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.015 sec - in 
org.apache.beam.sdk.transforms.CombineTest
Running org.apache.beam.sdk.util.VarIntTest
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 sec - in 
org.apache.beam.sdk.util.VarIntTest
Running org.apache.beam.sdk.util.StructsTest
Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec - in 
org.apache.beam.sdk.util.StructsTest
Running org.apache.beam.sdk.util.StreamUtilsTest
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec - in 
org.apache.beam.sdk.util.StreamUtilsTest
Running org.apache.beam.sdk.util.PubsubTestClientTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec - in 
org.apache.beam.sdk.util.PubsubTestClientTest
Running org.apache.beam.sdk.util.StringUtilsTest
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.StringUtilsTest
Running org.apache.beam.sdk.util.MutationDetectorsTest
Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.006 sec - in 
org.apache.beam.sdk.util.MutationDetectorsTest
Running org.apache.beam.sdk.util.ValueWithRecordIdTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.004 sec - in 
org.apache.beam.sdk.util.ValueWithRecordIdTest
Running org.apache.beam.sdk.util.ExposedByteArrayOutputStreamTest
Tests run: 24, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec - in 
org.apache.beam.sdk.util.ExposedByteArrayOutputStreamTest
Running org.apache.beam.sdk.util.GcsIOChannelFactoryRegistrarTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.GcsIOChannelFactoryRegistrarTest
Running org.apache.beam.sdk.util.GcpProjectUtilTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.051 sec - in 
org.apache.beam.sdk.util.GcpProjectUtilTest
Running org.apache.beam.sdk.util.ZipFilesTest
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.013 sec - in 
org.apache.beam.sdk.util.ZipFilesTest
Running org.apache.beam.sdk.util.GcsIOChannelFactoryTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.GcsIOChannelFactoryTest
Running org.apache.beam.sdk.util.ApiSurfaceTest
Tests run: 10, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.008 sec - in 
org.apache.beam.sdk.util.ApiSurfaceTest
Running org.apache.beam.sdk.util.PubsubClientTest
Tests run: 20, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.008 sec - in 
org.apache.beam.sdk.util.PubsubClientTest
Running org.apache.beam.sdk.util.UnownedInputStreamTest
Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.UnownedInputStreamTest
Running org.apache.beam.sdk.util.FileIOChannelFactoryTest
Tests run: 18, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.035 sec - in 
org.apache.beam.sdk.util.FileIOChannelFactoryTest
Running org.apache.beam.sdk.util.ReleaseInfoTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.ReleaseInfoTest
Running org.apache.beam.sdk.util.WindowedValueTest
Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.011 sec - in 
org.apache.beam.sdk.util.WindowedValueTest
Running org.apache.beam.sdk.util.common.ReflectHelpersTest
Tests run: 12, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.007 sec - in 
org.apache.beam.sdk.util.common.ReflectHelpersTest
Running org.apache.beam.sdk.util.PubsubJsonClientTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.086 sec - in 
org.apache.beam.sdk.util.PubsubJsonClientTest
Running org.apache.beam.sdk.util.DefaultBucketTest
Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.017 sec - in 
org.apache.beam.sdk.util.DefaultBucketTest
Running org.apache.beam.sdk.util.GcsUtilTest
Tests run: 28, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.119 sec - in 
org.apache.beam.sdk.util.GcsUtilTest
Running org.apache.beam.sdk.util.WindowingStrategiesTest
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.101 sec - in 
org.apache.beam.sdk.util.WindowingStrategiesTest
Running org.apache.beam.sdk.util.ExposedByteArrayInputStreamTest
Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.ExposedByteArrayInputStreamTest
Running org.apache.beam.sdk.util.BufferedElementCountingOutputStreamTest
Tests run: 14, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.168 sec - in 
org.apache.beam.sdk.util.BufferedElementCountingOutputStreamTest
Running org.apache.beam.sdk.util.FluentBackoffTest
Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 sec - in 
org.apache.beam.sdk.util.FluentBackoffTest
Running org.apache.beam.sdk.util.IntervalBoundedExponentialBackOffTest
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec - in 
org.apache.beam.sdk.util.IntervalBoundedExponentialBackOffTest
Running org.apache.beam.sdk.util.AvroUtilsTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.577 sec - in 
org.apache.beam.sdk.util.AvroUtilsTest
Running org.apache.beam.sdk.util.CoderUtilsTest
Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.011 sec - in 
org.apache.beam.sdk.util.CoderUtilsTest
Running org.apache.beam.sdk.util.InstanceBuilderTest
Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.InstanceBuilderTest
Running org.apache.beam.sdk.util.PubsubGrpcClientTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.252 sec - in 
org.apache.beam.sdk.util.PubsubGrpcClientTest
Running org.apache.beam.sdk.util.AttemptAndTimeBoundedExponentialBackOffTest
Tests run: 12, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.003 sec - in 
org.apache.beam.sdk.util.AttemptAndTimeBoundedExponentialBackOffTest
Running org.apache.beam.sdk.util.SerializableUtilsTest
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.009 sec - in 
org.apache.beam.sdk.util.SerializableUtilsTest
Running org.apache.beam.sdk.util.RetryHttpRequestInitializerTest
Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.057 sec - in 
org.apache.beam.sdk.util.RetryHttpRequestInitializerTest
Running org.apache.beam.sdk.util.GcsPathValidatorTest
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 sec - in 
org.apache.beam.sdk.util.GcsPathValidatorTest
Running org.apache.beam.sdk.util.UploadIdResponseInterceptorTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec - in 
org.apache.beam.sdk.util.UploadIdResponseInterceptorTest
Running org.apache.beam.sdk.util.NumberedShardedFileTest
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.035 sec - in 
org.apache.beam.sdk.util.NumberedShardedFileTest
Running org.apache.beam.sdk.util.FileIOChannelFactoryRegistrarTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.FileIOChannelFactoryRegistrarTest
Running org.apache.beam.sdk.util.PTupleTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec - in 
org.apache.beam.sdk.util.PTupleTest
Running org.apache.beam.sdk.util.UnownedOutputStreamTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.UnownedOutputStreamTest
Running org.apache.beam.sdk.util.gcsfs.GcsPathTest
Tests run: 22, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.007 sec - in 
org.apache.beam.sdk.util.gcsfs.GcsPathTest
Running org.apache.beam.sdk.util.CombineFnUtilTest
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.014 sec - in 
org.apache.beam.sdk.util.CombineFnUtilTest
Running org.apache.beam.sdk.util.ReshuffleTriggerTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.ReshuffleTriggerTest
Running org.apache.beam.sdk.util.BucketingFunctionTest
Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec - in 
org.apache.beam.sdk.util.BucketingFunctionTest
Running org.apache.beam.sdk.util.NameUtilsTest
Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.007 sec - in 
org.apache.beam.sdk.util.NameUtilsTest
Running org.apache.beam.sdk.util.UserCodeExceptionTest
Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec - in 
org.apache.beam.sdk.util.UserCodeExceptionTest
Running org.apache.beam.sdk.util.SerializerTest
Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.013 sec - in 
org.apache.beam.sdk.util.SerializerTest
Running org.apache.beam.sdk.util.MovingFunctionTest
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec - in 
org.apache.beam.sdk.util.MovingFunctionTest
Running org.apache.beam.sdk.util.AttemptBoundedExponentialBackOffTest
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec - in 
org.apache.beam.sdk.util.AttemptBoundedExponentialBackOffTest
Running org.apache.beam.sdk.util.IOChannelUtilsTest
Tests run: 10, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.01 sec - in 
org.apache.beam.sdk.util.IOChannelUtilsTest

Results :

Failed tests: 
  SdkCoreApiSurfaceTest.testSdkApiSurface:59 
Expected: API surface to include only:
        Classes in package "org.apache.beam"
        Classes in package "com.google.api.client"
        Classes in package "com.google.api.services.bigquery"
        Classes in package "com.google.api.services.cloudresourcemanager"
        Classes in package "com.google.api.services.pubsub"
        Classes in package "com.google.api.services.storage"
        Classes in package "com.google.auth"
        Classes in package "com.google.protobuf"
        Classes in package "com.fasterxml.jackson.annotation"
        Classes in package "com.fasterxml.jackson.core"
        Classes in package "com.fasterxml.jackson.databind"
        Classes in package "org.apache.avro"
        Classes in package "org.hamcrest"
        Classes in package "org.codehaus.jackson"
        Classes in package "org.joda.time"
        Classes in package "org.junit"
        
     but: The following white-listed scopes did not have matching classes on 
the API surface:
        No Classes in package "com.fasterxml.jackson.annotation"
        No Classes in package "com.fasterxml.jackson.core"
        No Classes in package "com.fasterxml.jackson.databind"
        No Classes in package "com.google.api.client"
        No Classes in package "com.google.api.services.bigquery"
        No Classes in package "com.google.api.services.cloudresourcemanager"
        No Classes in package "com.google.api.services.pubsub"
        No Classes in package "com.google.api.services.storage"
        No Classes in package "com.google.auth"
        No Classes in package "com.google.protobuf"
        No Classes in package "org.apache.avro"
        No Classes in package "org.apache.beam"
        No Classes in package "org.codehaus.jackson"
        No Classes in package "org.hamcrest"
        No Classes in package "org.joda.time"
        No Classes in package "org.junit"

Tests run: 2649, Failures: 1, Errors: 0, Skipped: 3

2017-03-10\T\00:35:15.833 [INFO]                                                
                         
2017-03-10\T\00:35:15.833 [INFO] 
------------------------------------------------------------------------
2017-03-10\T\00:35:15.833 [INFO] Skipping Apache Beam :: Parent
2017-03-10\T\00:35:15.833 [INFO] This project has been banned from the build 
due to previous failures.
2017-03-10\T\00:35:15.833 [INFO] 
------------------------------------------------------------------------
2017-03-10\T\00:35:15.833 [INFO] 
------------------------------------------------------------------------
2017-03-10\T\00:35:15.833 [INFO] Reactor Summary:
2017-03-10\T\00:35:15.833 [INFO] 
2017-03-10\T\00:35:15.833 [INFO] Apache Beam :: Parent 
.............................. SUCCESS [ 19.501 s]
2017-03-10\T\00:35:15.833 [INFO] Apache Beam :: SDKs :: Java :: Build Tools 
......... SUCCESS [  1.250 s]
2017-03-10\T\00:35:15.833 [INFO] Apache Beam :: SDKs 
................................ SUCCESS [  4.525 s]
2017-03-10\T\00:35:15.833 [INFO] Apache Beam :: SDKs :: Common 
...................... SUCCESS [  0.412 s]
2017-03-10\T\00:35:15.833 [INFO] Apache Beam :: SDKs :: Common :: Fn API 
............ SUCCESS [ 15.196 s]
2017-03-10\T\00:35:15.833 [INFO] Apache Beam :: SDKs :: Common :: Runner API 
........ SUCCESS [ 11.476 s]
2017-03-10\T\00:35:15.833 [INFO] Apache Beam :: SDKs :: Java 
........................ SUCCESS [  0.789 s]
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: Core 
................ FAILURE [02:02 min]
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Runners 
............................. SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Runners :: Core Java 
Construction ... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Runners :: Core Java 
................ SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Runners :: Direct Java 
.............. SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO 
.................. SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: 
Elasticsearch . SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Runners :: Google Cloud 
Dataflow .... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: Google 
Cloud Platform SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: Hadoop 
Common . SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: HBase 
......... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: HDFS 
.......... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: JDBC 
.......... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: JMS 
........... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: Kafka 
......... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: Kinesis 
....... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: MongoDB 
....... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: IO :: MQTT 
.......... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: Maven 
Archetypes .... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: Maven 
Archetypes :: Starter SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: Maven 
Archetypes :: Examples SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: Extensions 
.......... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: Extensions :: 
Jackson SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: Extensions :: 
Join library SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: Extensions :: 
Sorter  SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Python 
...................... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Runners :: Flink 
.................... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Runners :: Flink :: Core 
............ SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Runners :: Flink :: Examples 
........ SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Runners :: Spark 
.................... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Runners :: Apex 
..................... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Examples 
............................ SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: Examples :: Java 
.................... SKIPPED
2017-03-10\T\00:35:15.834 [INFO] Apache Beam :: SDKs :: Java :: Aggregated 
Javadoc .. SKIPPED
2017-03-10\T\00:35:15.834 [INFO] 
------------------------------------------------------------------------
2017-03-10\T\00:35:15.834 [INFO] BUILD FAILURE
2017-03-10\T\00:35:15.834 [INFO] 
------------------------------------------------------------------------
2017-03-10\T\00:35:15.834 [INFO] Total time: 03:01 min
2017-03-10\T\00:35:15.834 [INFO] Finished at: 2017-03-10T00:35:15+00:00
2017-03-10\T\00:35:16.222 [INFO] Final Memory: 111M/1491M
2017-03-10\T\00:35:16.222 [INFO] 
------------------------------------------------------------------------
2017-03-10\T\00:35:16.225 [ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test (default-test) on 
project beam-sdks-java-core: There are test failures.
2017-03-10\T\00:35:16.225 [ERROR] 
2017-03-10\T\00:35:16.225 [ERROR] Please refer to 
<https://builds.apache.org/job/beam_PostCommit_Java_Version_Test/jdk=OpenJDK%208%20(on%20Ubuntu%20only),label=beam/ws/sdks/java/core/target/surefire-reports>
 for the individual test results.
2017-03-10\T\00:35:16.225 [ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal 
org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test (default-test) on 
project beam-sdks-java-core: There are test failures.

Please refer to 
<https://builds.apache.org/job/beam_PostCommit_Java_Version_Test/jdk=OpenJDK%208%20(on%20Ubuntu%20only),label=beam/ws/sdks/java/core/target/surefire-reports>
 for the individual test results.
        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_Version_Test/jdk=OpenJDK%208%20(on%20Ubuntu%20only),label=beam/ws/sdks/java/core/target/surefire-reports>
 for the individual test results.
        at 
org.apache.maven.plugin.surefire.SurefireHelper.reportExecution(SurefireHelper.java:91)
        at 
org.apache.maven.plugin.surefire.SurefirePlugin.handleSummary(SurefirePlugin.java:320)
        at 
org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked(AbstractSurefireMojo.java:892)
        at 
org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute(AbstractSurefireMojo.java:755)
        at 
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
        ... 20 more
2017-03-10\T\00:35:16.226 [ERROR] 
2017-03-10\T\00:35:16.226 [ERROR] Re-run Maven using the -X switch to enable 
full debug logging.
2017-03-10\T\00:35:16.226 [ERROR] 
2017-03-10\T\00:35:16.226 [ERROR] For more information about the errors and 
possible solutions, please read the following articles:
2017-03-10\T\00:35:16.226 [ERROR] [Help 1] 
http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
2017-03-10\T\00:35:16.226 [ERROR] 
2017-03-10\T\00:35:16.226 [ERROR] After correcting the problems, you can resume 
the build with the command
2017-03-10\T\00:35:16.226 [ERROR]   mvn <goals> -rf :beam-sdks-java-core
Build step 'Invoke top-level Maven targets' marked build as failure

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