See 
<https://builds.apache.org/job/beam_PostCommit_Java_RunnableOnService_Flink/1774/display/redirect?page=changes>

Changes:

[tgroh] Inject Sharding Strategy in the Direct Runner

------------------------------------------
[...truncated 562.98 KB...]
Caused by: java.lang.ClassNotFoundException: 
org.apache.commons.compress.compressors.deflate.DeflateCompressorOutputStream
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 42 more

Running org.apache.beam.runners.flink.FlinkRunnerRegistrarTest
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec - in 
org.apache.beam.runners.flink.FlinkRunnerRegistrarTest
Running org.apache.beam.runners.flink.EncodedValueComparatorTest
Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.011 sec - in 
org.apache.beam.runners.flink.EncodedValueComparatorTest

Results :

Tests in error: 
  GroupByNullKeyTest>StreamingProgramTestBase.testJob:85->testProgram:121 ยป 
NoClassDefFound

Tests run: 83, Failures: 0, Errors: 1, Skipped: 0

2017-02-27T20:10:15.146 [ERROR] There are test failures.

Please refer to 
<https://builds.apache.org/job/beam_PostCommit_Java_RunnableOnService_Flink/ws/runners/flink/runner/target/surefire-reports>
 for the individual test results.
[JENKINS] Recording test results
2017-02-27T20:10:16.356 [INFO] 
2017-02-27T20:10:16.356 [INFO] --- maven-jar-plugin:3.0.2:jar (default-jar) @ 
beam-runners-flink_2.10 ---
2017-02-27T20:10:16.394 [INFO] Building jar: 
<https://builds.apache.org/job/beam_PostCommit_Java_RunnableOnService_Flink/ws/runners/flink/runner/target/beam-runners-flink_2.10-0.6.0-SNAPSHOT.jar>
2017-02-27T20:10:16.512 [INFO] 
2017-02-27T20:10:16.512 [INFO] --- maven-site-plugin:3.5.1:attach-descriptor 
(attach-descriptor) @ beam-runners-flink_2.10 ---
2017-02-27T20:10:16.614 [INFO] 
2017-02-27T20:10:16.614 [INFO] --- maven-jar-plugin:3.0.2:test-jar 
(default-test-jar) @ beam-runners-flink_2.10 ---
2017-02-27T20:10:16.629 [INFO] Building jar: 
<https://builds.apache.org/job/beam_PostCommit_Java_RunnableOnService_Flink/ws/runners/flink/runner/target/beam-runners-flink_2.10-0.6.0-SNAPSHOT-tests.jar>
2017-02-27T20:10:16.713 [INFO] 
2017-02-27T20:10:16.713 [INFO] --- 
maven-failsafe-plugin:2.19.1:integration-test (default) @ 
beam-runners-flink_2.10 ---
2017-02-27T20:10:16.818 [INFO] Tests are skipped.
[JENKINS] Recording test results2017-02-27T20:10:16.870 [INFO] 
2017-02-27T20:10:16.870 [INFO] --- maven-surefire-plugin:2.19.1:test 
(runnable-on-service-tests) @ beam-runners-flink_2.10 ---

2017-02-27T20:10:16.925 [INFO] Surefire report directory: 
<https://builds.apache.org/job/beam_PostCommit_Java_RunnableOnService_Flink/ws/runners/flink/runner/target/surefire-reports>
2017-02-27T20:10:16.926 [INFO] Using configured provider 
org.apache.maven.surefire.junitcore.JUnitCoreProvider
2017-02-27T20:10:16.926 [INFO] parallel='none', perCoreThreadCount=true, 
threadCount=4, useUnlimitedThreads=false, threadCountSuites=0, 
threadCountClasses=0, threadCountMethods=0, parallelOptimized=true

-------------------------------------------------------
 T E S T S
-------------------------------------------------------

Results :

Tests run: 0, Failures: 0, Errors: 0, Skipped: 0

[JENKINS] Recording test results
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
2017-02-27T20:10:23.537 [INFO] 
------------------------------------------------------------------------
2017-02-27T20:10:23.537 [INFO] Reactor Summary:
2017-02-27T20:10:23.537 [INFO] 
2017-02-27T20:10:23.537 [INFO] Apache Beam :: Parent 
.............................. SUCCESS [ 17.968 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: SDKs :: Java :: Build Tools 
......... SUCCESS [  5.956 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: SDKs 
................................ SUCCESS [  3.584 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: SDKs :: Common 
...................... SUCCESS [  1.115 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: SDKs :: Common :: Fn API 
............ SUCCESS [ 12.616 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: SDKs :: Common :: Runner API 
........ SUCCESS [  4.844 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: SDKs :: Java 
........................ SUCCESS [  0.923 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: SDKs :: Java :: Core 
................ SUCCESS [03:11 min]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: Runners 
............................. SUCCESS [  1.452 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: Runners :: Core Java Construction 
... SUCCESS [ 13.192 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: Runners :: Core Java 
................ SUCCESS [ 59.257 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: Runners :: Flink 
.................... SUCCESS [  1.150 s]
2017-02-27T20:10:23.537 [INFO] Apache Beam :: Runners :: Flink :: Core 
............ FAILURE [ 29.372 s]
2017-02-27T20:10:23.537 [INFO] 
------------------------------------------------------------------------
2017-02-27T20:10:23.537 [INFO] BUILD FAILURE
2017-02-27T20:10:23.537 [INFO] 
------------------------------------------------------------------------
2017-02-27T20:10:23.538 [INFO] Total time: 06:11 min
2017-02-27T20:10:23.538 [INFO] Finished at: 2017-02-27T20:10:23+00:00
2017-02-27T20:10:24.602 [INFO] Final Memory: 123M/1589M
2017-02-27T20:10:24.602 [INFO] 
------------------------------------------------------------------------
Waiting for Jenkins to finish collecting data
2017-02-27T20:10:30.508 [ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test 
(runnable-on-service-tests) on project beam-runners-flink_2.10: Execution 
runnable-on-service-tests of goal 
org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test failed: There was an 
error in the forked process
2017-02-27T20:10:30.508 [ERROR] java.lang.NoClassDefFoundError: 
org/apache/commons/compress/compressors/deflate/DeflateCompressorOutputStream
2017-02-27T20:10:30.508 [ERROR] at java.lang.Class.getDeclaredMethods0(Native 
Method)
2017-02-27T20:10:30.509 [ERROR] at 
java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
2017-02-27T20:10:30.509 [ERROR] at 
java.lang.Class.privateGetMethodRecursive(Class.java:3048)
2017-02-27T20:10:30.509 [ERROR] at java.lang.Class.getMethod0(Class.java:3018)
2017-02-27T20:10:30.509 [ERROR] at java.lang.Class.getMethod(Class.java:1784)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.util.ReflectionUtils.tryGetMethod(ReflectionUtils.java:61)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isSuiteOnly(JUnit3TestChecker.java:64)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isValidJUnit3Test(JUnit3TestChecker.java:59)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.accept(JUnit3TestChecker.java:54)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.common.junit4.JUnit4TestChecker.accept(JUnit4TestChecker.java:52)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.common.junit48.JUnit48TestChecker.accept(JUnit48TestChecker.java:50)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.util.DefaultScanResult.applyFilter(DefaultScanResult.java:98)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.scanClassPath(JUnitCoreProvider.java:295)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.setTestsToRun(JUnitCoreProvider.java:203)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:138)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
2017-02-27T20:10:30.509 [ERROR] at 
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
2017-02-27T20:10:30.509 [ERROR] Caused by: java.lang.ClassNotFoundException: 
org.apache.commons.compress.compressors.deflate.DeflateCompressorOutputStream
2017-02-27T20:10:30.509 [ERROR] at 
java.net.URLClassLoader.findClass(URLClassLoader.java:381)
2017-02-27T20:10:30.509 [ERROR] at 
java.lang.ClassLoader.loadClass(ClassLoader.java:424)
2017-02-27T20:10:30.509 [ERROR] at 
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
2017-02-27T20:10:30.509 [ERROR] at 
java.lang.ClassLoader.loadClass(ClassLoader.java:357)
2017-02-27T20:10:30.509 [ERROR] ... 18 more
2017-02-27T20:10:30.509 [ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal 
org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test 
(runnable-on-service-tests) on project beam-runners-flink_2.10: Execution 
runnable-on-service-tests of goal 
org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test failed: There was an 
error in the forked process
java.lang.NoClassDefFoundError: 
org/apache/commons/compress/compressors/deflate/DeflateCompressorOutputStream
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
        at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
        at java.lang.Class.getMethod0(Class.java:3018)
        at java.lang.Class.getMethod(Class.java:1784)
        at 
org.apache.maven.surefire.util.ReflectionUtils.tryGetMethod(ReflectionUtils.java:61)
        at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isSuiteOnly(JUnit3TestChecker.java:64)
        at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isValidJUnit3Test(JUnit3TestChecker.java:59)
        at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.accept(JUnit3TestChecker.java:54)
        at 
org.apache.maven.surefire.common.junit4.JUnit4TestChecker.accept(JUnit4TestChecker.java:52)
        at 
org.apache.maven.surefire.common.junit48.JUnit48TestChecker.accept(JUnit48TestChecker.java:50)
        at 
org.apache.maven.surefire.util.DefaultScanResult.applyFilter(DefaultScanResult.java:98)
        at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.scanClassPath(JUnitCoreProvider.java:295)
        at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.setTestsToRun(JUnitCoreProvider.java:203)
        at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:138)
        at 
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
        at 
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
        at 
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
Caused by: java.lang.ClassNotFoundException: 
org.apache.commons.compress.compressors.deflate.DeflateCompressorOutputStream
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 18 more

        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:224)
        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.jvnet.hudson.maven3.launcher.Maven33Launcher.main(Maven33Launcher.java:129)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.codehaus.plexus.classworlds.launcher.Launcher.launchStandard(Launcher.java:330)
        at 
org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:238)
        at jenkins.maven3.agent.Maven33Main.launch(Maven33Main.java:176)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at hudson.maven.Maven3Builder.call(Maven3Builder.java:139)
        at hudson.maven.Maven3Builder.call(Maven3Builder.java:70)
        at hudson.remoting.UserRequest.perform(UserRequest.java:153)
        at hudson.remoting.UserRequest.perform(UserRequest.java:50)
        at hudson.remoting.Request$2.run(Request.java:336)
        at 
hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution 
runnable-on-service-tests of goal 
org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test failed: There was an 
error in the forked process
java.lang.NoClassDefFoundError: 
org/apache/commons/compress/compressors/deflate/DeflateCompressorOutputStream
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
        at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
        at java.lang.Class.getMethod0(Class.java:3018)
        at java.lang.Class.getMethod(Class.java:1784)
        at 
org.apache.maven.surefire.util.ReflectionUtils.tryGetMethod(ReflectionUtils.java:61)
        at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isSuiteOnly(JUnit3TestChecker.java:64)
        at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isValidJUnit3Test(JUnit3TestChecker.java:59)
        at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.accept(JUnit3TestChecker.java:54)
        at 
org.apache.maven.surefire.common.junit4.JUnit4TestChecker.accept(JUnit4TestChecker.java:52)
        at 
org.apache.maven.surefire.common.junit48.JUnit48TestChecker.accept(JUnit48TestChecker.java:50)
        at 
org.apache.maven.surefire.util.DefaultScanResult.applyFilter(DefaultScanResult.java:98)
        at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.scanClassPath(JUnitCoreProvider.java:295)
        at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.setTestsToRun(JUnitCoreProvider.java:203)
        at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:138)
        at 
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
        at 
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
        at 
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
Caused by: java.lang.ClassNotFoundException: 
org.apache.commons.compress.compressors.deflate.DeflateCompressorOutputStream
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 18 more

        at 
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:145)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
        ... 31 more
Caused by: java.lang.RuntimeException: There was an error in the forked process
java.lang.NoClassDefFoundError: 
org/apache/commons/compress/compressors/deflate/DeflateCompressorOutputStream
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
        at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
        at java.lang.Class.getMethod0(Class.java:3018)
        at java.lang.Class.getMethod(Class.java:1784)
        at 
org.apache.maven.surefire.util.ReflectionUtils.tryGetMethod(ReflectionUtils.java:61)
        at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isSuiteOnly(JUnit3TestChecker.java:64)
        at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isValidJUnit3Test(JUnit3TestChecker.java:59)
        at 
org.apache.maven.surefire.common.junit3.JUnit3TestChecker.accept(JUnit3TestChecker.java:54)
        at 
org.apache.maven.surefire.common.junit4.JUnit4TestChecker.accept(JUnit4TestChecker.java:52)
        at 
org.apache.maven.surefire.common.junit48.JUnit48TestChecker.accept(JUnit48TestChecker.java:50)
        at 
org.apache.maven.surefire.util.DefaultScanResult.applyFilter(DefaultScanResult.java:98)
        at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.scanClassPath(JUnitCoreProvider.java:295)
        at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.setTestsToRun(JUnitCoreProvider.java:203)
        at 
org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:138)
        at 
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
        at 
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
        at 
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
Caused by: java.lang.ClassNotFoundException: 
org.apache.commons.compress.compressors.deflate.DeflateCompressorOutputStream
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 18 more

        at 
org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:584)
        at 
org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:460)
        at 
org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:229)
        at 
org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:201)
        at 
org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider(AbstractSurefireMojo.java:1026)
        at 
org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked(AbstractSurefireMojo.java:862)
        at 
org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute(AbstractSurefireMojo.java:755)
        at 
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        ... 32 more
2017-02-27T20:10:30.510 [ERROR] 
2017-02-27T20:10:30.510 [ERROR] Re-run Maven using the -X switch to enable full 
debug logging.
2017-02-27T20:10:30.510 [ERROR] 
2017-02-27T20:10:30.510 [ERROR] For more information about the errors and 
possible solutions, please read the following articles:
2017-02-27T20:10:30.510 [ERROR] [Help 1] 
http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException
2017-02-27T20:10:30.511 [ERROR] 
2017-02-27T20:10:30.511 [ERROR] After correcting the problems, you can resume 
the build with the command
2017-02-27T20:10:30.511 [ERROR]   mvn <goals> -rf :beam-runners-flink_2.10
channel stopped

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