[
https://issues.apache.org/jira/browse/FLINK-23829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17400917#comment-17400917
]
Till Rohrmann commented on FLINK-23829:
---------------------------------------
Here is another instance of this problem
https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=22276&view=logs&j=5c8e7682-d68f-54d1-16a2-a09310218a49&t=86f654fa-ab48-5c1a-25f4-7e7f6afb9bba&l=5240.
{code}
3:24:33,647 [flink-akka.actor.default-dispatcher-9] ERROR
org.apache.flink.util.FatalExitExceptionHandler [] - FATAL: Thread
'flink-akka.actor.default-dispatcher-9' produced an uncaught exception.
Stopping the process...
java.util.concurrent.CompletionException:
org.apache.flink.util.WrappingRuntimeException:
java.util.concurrent.CompletionException:
java.util.concurrent.RejectedExecutionException:
org.apache.flink.streaming.runtime.tasks.mailbox.TaskMailbox$MailboxClosedException:
Mailbox is in state CLOSED, but is required to be in state OPEN for put
operations.
at
java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
~[?:1.8.0_292]
at
java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
~[?:1.8.0_292]
at
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:888)
~[?:1.8.0_292]
at
java.util.concurrent.CompletableFuture.uniExceptionallyStage(CompletableFuture.java:898)
~[?:1.8.0_292]
at
java.util.concurrent.CompletableFuture.exceptionally(CompletableFuture.java:2209)
~[?:1.8.0_292]
at
org.apache.flink.streaming.runtime.tasks.StreamTask.assertTriggeringCheckpointExceptions(StreamTask.java:1211)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
org.apache.flink.streaming.runtime.tasks.SourceOperatorStreamTask.triggerStopWithSavepointWithDrainAsync(SourceOperatorStreamTask.java:130)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
org.apache.flink.streaming.runtime.tasks.SourceOperatorStreamTask.triggerCheckpointAsync(SourceOperatorStreamTask.java:118)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
org.apache.flink.runtime.taskmanager.Task.triggerCheckpointBarrier(Task.java:1309)
~[flink-runtime-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
org.apache.flink.runtime.taskexecutor.TaskExecutor.triggerCheckpoint(TaskExecutor.java:956)
~[flink-runtime-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
~[?:1.8.0_292]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[?:1.8.0_292]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:1.8.0_292]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_292]
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.lambda$handleRpcInvocation$1(AkkaRpcActor.java:316)
~[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at
org.apache.flink.runtime.concurrent.akka.ClassLoadingUtils.runWithContextClassLoader(ClassLoadingUtils.java:83)
~[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:314)
~[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:217)
~[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:163)
~[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:24)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:20)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at scala.PartialFunction.applyOrElse(PartialFunction.scala:123)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at scala.PartialFunction.applyOrElse$(PartialFunction.scala:122)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:20)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.actor.Actor.aroundReceive(Actor.scala:537)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.actor.Actor.aroundReceive$(Actor.scala:535)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:220)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:580)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.actor.ActorCell.invoke(ActorCell.scala:548)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:270)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.dispatch.Mailbox.run(Mailbox.scala:231)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at akka.dispatch.Mailbox.exec(Mailbox.scala:243)
[flink-rpc-akka_d4ae6041-5c32-4e8b-8526-4885241e5468.jar:1.14-SNAPSHOT]
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
[?:1.8.0_292]
at
java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
[?:1.8.0_292]
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
[?:1.8.0_292]
at
java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175)
[?:1.8.0_292]
Caused by: org.apache.flink.util.WrappingRuntimeException:
java.util.concurrent.CompletionException:
java.util.concurrent.RejectedExecutionException:
org.apache.flink.streaming.runtime.tasks.mailbox.TaskMailbox$MailboxClosedException:
Mailbox is in state CLOSED, but is required to be in state OPEN for put
operations.
at
org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$assertTriggeringCheckpointExceptions$12(StreamTask.java:1222)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
~[?:1.8.0_292]
... 36 more
Caused by: java.util.concurrent.CompletionException:
java.util.concurrent.RejectedExecutionException:
org.apache.flink.streaming.runtime.tasks.mailbox.TaskMailbox$MailboxClosedException:
Mailbox is in state CLOSED, but is required to be in state OPEN for put
operations.
at
java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
~[?:1.8.0_292]
at
java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:1005)
~[?:1.8.0_292]
at
java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2137)
~[?:1.8.0_292]
at
org.apache.flink.streaming.runtime.tasks.SourceOperatorStreamTask.triggerStopWithSavepointWithDrainAsync(SourceOperatorStreamTask.java:133)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
... 32 more
Caused by: java.util.concurrent.RejectedExecutionException:
org.apache.flink.streaming.runtime.tasks.mailbox.TaskMailbox$MailboxClosedException:
Mailbox is in state CLOSED, but is required to be in state OPEN for put
operations.
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxExecutorImpl.execute(MailboxExecutorImpl.java:78)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
org.apache.flink.streaming.runtime.tasks.StreamTask.triggerCheckpointAsync(StreamTask.java:1104)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
org.apache.flink.streaming.runtime.tasks.SourceOperatorStreamTask.lambda$triggerStopWithSavepointWithDrainAsync$0(SourceOperatorStreamTask.java:135)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:995)
~[?:1.8.0_292]
at
java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2137)
~[?:1.8.0_292]
at
org.apache.flink.streaming.runtime.tasks.SourceOperatorStreamTask.triggerStopWithSavepointWithDrainAsync(SourceOperatorStreamTask.java:133)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
... 32 more
Caused by:
org.apache.flink.streaming.runtime.tasks.mailbox.TaskMailbox$MailboxClosedException:
Mailbox is in state CLOSED, but is required to be in state OPEN for put
operations.
at
org.apache.flink.streaming.runtime.tasks.mailbox.TaskMailboxImpl.checkPutStateConditions(TaskMailboxImpl.java:269)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
org.apache.flink.streaming.runtime.tasks.mailbox.TaskMailboxImpl.put(TaskMailboxImpl.java:197)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxExecutorImpl.execute(MailboxExecutorImpl.java:74)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
org.apache.flink.streaming.runtime.tasks.StreamTask.triggerCheckpointAsync(StreamTask.java:1104)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
org.apache.flink.streaming.runtime.tasks.SourceOperatorStreamTask.lambda$triggerStopWithSavepointWithDrainAsync$0(SourceOperatorStreamTask.java:135)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
at
java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:995)
~[?:1.8.0_292]
at
java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2137)
~[?:1.8.0_292]
at
org.apache.flink.streaming.runtime.tasks.SourceOperatorStreamTask.triggerStopWithSavepointWithDrainAsync(SourceOperatorStreamTask.java:133)
~[flink-streaming-java_2.11-1.14-SNAPSHOT.jar:1.14-SNAPSHOT]
... 32 more
{code}
To me this looks not like a test instability but more like a problem introduced
by FLINK-2491 which might affect the overall stability of Flink.
cc [~pnowojski].
> SavepointITCase JVM crash on azure
> ----------------------------------
>
> Key: FLINK-23829
> URL: https://issues.apache.org/jira/browse/FLINK-23829
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Checkpointing
> Affects Versions: 1.14.0
> Reporter: Xintong Song
> Priority: Blocker
> Labels: test-stability
> Fix For: 1.14.0
>
>
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=22293&view=logs&j=5c8e7682-d68f-54d1-16a2-a09310218a49&t=86f654fa-ab48-5c1a-25f4-7e7f6afb9bba&l=5224
> {code}
> Aug 16 16:26:11 [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-surefire-plugin:2.22.2:test
> (integration-tests) on project flink-tests: There are test failures.
> Aug 16 16:26:11 [ERROR]
> Aug 16 16:26:11 [ERROR] Please refer to
> /__w/1/s/flink-tests/target/surefire-reports for the individual test results.
> Aug 16 16:26:11 [ERROR] Please refer to dump files (if any exist)
> [date].dump, [date]-jvmRun[N].dump and [date].dumpstream.
> Aug 16 16:26:11 [ERROR] ExecutionException The forked VM terminated without
> properly saying goodbye. VM crash or System.exit called?
> Aug 16 16:26:11 [ERROR] Command was /bin/sh -c cd /__w/1/s/flink-tests/target
> && /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java -Xms256m -Xmx2048m
> -Dmvn.forkNumber=2 -XX:+UseG1GC -jar
> /__w/1/s/flink-tests/target/surefire/surefirebooter8870094541887019356.jar
> /__w/1/s/flink-tests/target/surefire 2021-08-16T15-45-06_363-jvmRun2
> surefire8582412554358604743tmp surefire_2118489584967019297925tmp
> Aug 16 16:26:11 [ERROR] Error occurred in starting fork, check output in log
> Aug 16 16:26:11 [ERROR] Process Exit Code: 239
> Aug 16 16:26:11 [ERROR] Crashed tests:
> Aug 16 16:26:11 [ERROR] org.apache.flink.test.checkpointing.SavepointITCase
> Aug 16 16:26:11 [ERROR]
> org.apache.maven.surefire.booter.SurefireBooterForkException:
> ExecutionException The forked VM terminated without properly saying goodbye.
> VM crash or System.exit called?
> Aug 16 16:26:11 [ERROR] Command was /bin/sh -c cd /__w/1/s/flink-tests/target
> && /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java -Xms256m -Xmx2048m
> -Dmvn.forkNumber=2 -XX:+UseG1GC -jar
> /__w/1/s/flink-tests/target/surefire/surefirebooter8870094541887019356.jar
> /__w/1/s/flink-tests/target/surefire 2021-08-16T15-45-06_363-jvmRun2
> surefire8582412554358604743tmp surefire_2118489584967019297925tmp
> Aug 16 16:26:11 [ERROR] Error occurred in starting fork, check output in log
> Aug 16 16:26:11 [ERROR] Process Exit Code: 239
> Aug 16 16:26:11 [ERROR] Crashed tests:
> Aug 16 16:26:11 [ERROR] org.apache.flink.test.checkpointing.SavepointITCase
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.booterclient.ForkStarter.awaitResultsDone(ForkStarter.java:510)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.booterclient.ForkStarter.runSuitesForkPerTestSet(ForkStarter.java:457)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:298)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:246)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider(AbstractSurefireMojo.java:1183)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked(AbstractSurefireMojo.java:1011)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute(AbstractSurefireMojo.java:857)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:355)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.cli.MavenCli.doMain(MavenCli.java:216)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.cli.MavenCli.main(MavenCli.java:160)
> Aug 16 16:26:11 [ERROR] at
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> Aug 16 16:26:11 [ERROR] at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> Aug 16 16:26:11 [ERROR] at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> Aug 16 16:26:11 [ERROR] at java.lang.reflect.Method.invoke(Method.java:498)
> Aug 16 16:26:11 [ERROR] at
> org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
> Aug 16 16:26:11 [ERROR] at
> org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
> Aug 16 16:26:11 [ERROR] at
> org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
> Aug 16 16:26:11 [ERROR] at
> org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
> Aug 16 16:26:11 [ERROR] Caused by:
> org.apache.maven.surefire.booter.SurefireBooterForkException: The forked VM
> terminated without properly saying goodbye. VM crash or System.exit called?
> Aug 16 16:26:11 [ERROR] Command was /bin/sh -c cd /__w/1/s/flink-tests/target
> && /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java -Xms256m -Xmx2048m
> -Dmvn.forkNumber=2 -XX:+UseG1GC -jar
> /__w/1/s/flink-tests/target/surefire/surefirebooter8870094541887019356.jar
> /__w/1/s/flink-tests/target/surefire 2021-08-16T15-45-06_363-jvmRun2
> surefire8582412554358604743tmp surefire_2118489584967019297925tmp
> Aug 16 16:26:11 [ERROR] Error occurred in starting fork, check output in log
> Aug 16 16:26:11 [ERROR] Process Exit Code: 239
> Aug 16 16:26:11 [ERROR] Crashed tests:
> Aug 16 16:26:11 [ERROR] org.apache.flink.test.checkpointing.SavepointITCase
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:669)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.booterclient.ForkStarter.access$600(ForkStarter.java:115)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.booterclient.ForkStarter$2.call(ForkStarter.java:444)
> Aug 16 16:26:11 [ERROR] at
> org.apache.maven.plugin.surefire.booterclient.ForkStarter$2.call(ForkStarter.java:420)
> Aug 16 16:26:11 [ERROR] at
> java.util.concurrent.FutureTask.run(FutureTask.java:266)
> Aug 16 16:26:11 [ERROR] at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> Aug 16 16:26:11 [ERROR] at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> Aug 16 16:26:11 [ERROR] at java.lang.Thread.run(Thread.java:748)
> Aug 16 16:26:11 [ERROR] -> [Help 1]
> Aug 16 16:26:11 [ERROR]
> Aug 16 16:26:11 [ERROR] To see the full stack trace of the errors, re-run
> Maven with the -e switch.
> Aug 16 16:26:11 [ERROR] Re-run Maven using the -X switch to enable full debug
> logging.
> Aug 16 16:26:11 [ERROR]
> Aug 16 16:26:11 [ERROR] For more information about the errors and possible
> solutions, please read the following articles:
> Aug 16 16:26:11 [ERROR] [Help 1]
> http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
> {code}
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