Triggers: handle missing case

[dhalperi]

R: @tgroh

[dhalperi]

Run Dataflow ValidatesRunner

[asfbot]

Refer to this link for build results (access rights to CI server needed):
https://builds.apache.org/job/beam_PreCommit_Java_MavenInstall/9428/

Build result: FAILURE

[...truncated 2.74 MB...] at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) ... 31 moreCaused by: java.lang.RuntimeException: The forked VM terminated without properly saying goodbye. VM crash or System.exit called?Command was /bin/sh -c cd /home/jenkins/jenkins-slave/workspace/beam_PreCommit_Java_MavenInstall@2/examples/java && /usr/local/asfpackages/java/jdk1.8.0_121/jre/bin/java '-javaagent:/home/jenkins/jenkins-slave/workspace/beam_PreCommit_Java_MavenInstall@2/.repository/org/jacoco/org.jacoco.agent/0.7.8/org.jacoco.agent-0.7.8-runtime.jar=destfile=/home/jenkins/jenkins-slave/workspace/beam_PreCommit_Java_MavenInstall@2/examples/java/target/jacoco.exec,excludes=**/AutoValue_*.class,dumponexit=true,output=file' org.apache.maven.surefire.booter.ForkedBooter /home/jenkins/jenkins-slave/workspace/beam_PreCommit_Java_MavenInstall@2/examples/java/target/surefire/surefire4782689258710568825tmp /home/jenkins/jenkins-slave/workspace/beam_PreCommit_Java_MavenInstall@2/examples/java/target/surefire/surefire_5927127399018754955tmp at org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:590) 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 more2017-04-12T00:40:06.641 [ERROR] 2017-04-12T00:40:06.641 [ERROR] Re-run Maven using the -X switch to enable full debug logging.2017-04-12T00:40:06.641 [ERROR] 2017-04-12T00:40:06.641 [ERROR] For more information about the errors and possible solutions, please read the following articles:2017-04-12T00:40:06.641 [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException2017-04-12T00:40:06.641 [ERROR] 2017-04-12T00:40:06.641 [ERROR] After correcting the problems, you can resume the build with the command2017-04-12T00:40:06.641 [ERROR] mvn -rf :beam-examples-javachannel stoppedSetting status of e7f4337 to FAILURE with url https://builds.apache.org/job/beam_PreCommit_Java_MavenInstall/9428/ and message: 'Build finished. 'Using context: Jenkins: Maven clean install
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