See https://builds.apache.org/job/ZooKeeper_branch34_jdk8/1080/
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########################## LAST 60 LINES OF THE CONSOLE
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Started by timer
[EnvInject] - Loading node environment variables.
Building remotely on H22 (couchdbtest ubuntu xenial) in workspace
/home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34_jdk8
> git rev-parse --is-inside-work-tree # timeout=10
Fetching changes from the remote Git repository
> git config remote.origin.url git://git.apache.org/zookeeper.git # timeout=10
Cleaning workspace
> git rev-parse --verify HEAD # timeout=10
Resetting working tree
> git reset --hard # timeout=10
> git clean -fdx # timeout=10
Fetching upstream changes from git://git.apache.org/zookeeper.git
> git --version # timeout=10
> git fetch --tags --progress git://git.apache.org/zookeeper.git
> +refs/heads/*:refs/remotes/origin/*
> git rev-parse refs/remotes/origin/branch-3.4^{commit} # timeout=10
> git rev-parse refs/remotes/origin/origin/branch-3.4^{commit} # timeout=10
Checking out Revision 76553b0ca69dbd9439b46ec318d1b04bc0e14f1f
(refs/remotes/origin/branch-3.4)
Commit message: "ZOOKEEPER-2829: Interface usability / compatibility
improvements through Java annotation."
> git config core.sparsecheckout # timeout=10
> git checkout -f 76553b0ca69dbd9439b46ec318d1b04bc0e14f1f
> git rev-list 76553b0ca69dbd9439b46ec318d1b04bc0e14f1f # timeout=10
No emails were triggered.
[ZooKeeper_branch34_jdk8] $ ant -Dtest.output=yes -Dtest.junit.threads=8
-Dtest.junit.output.format=xml -Djavac.target=1.8 clean test-core-java
Error occurred during initialization of VM
java.lang.OutOfMemoryError: unable to create new native thread
Build step 'Invoke Ant' marked build as failure
Recording test results
ERROR: Step ?Publish JUnit test result report? failed: No test report files
were found. Configuration error?
Email was triggered for: Failure - Any
Sending email for trigger: Failure - Any
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############################## FAILED TESTS (if any)
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No tests ran.
