See https://builds.apache.org/job/ZooKeeper-trunk-openjdk7/1083/

###################################################################################
########################## LAST 60 LINES OF THE CONSOLE 
###########################
[...truncated 508483 lines...]
    [junit]     at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    [junit]     at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    [junit]     at java.lang.Thread.run(Thread.java:745)
    [junit] 2016-07-05 20:04:22,234 [myid:] - INFO  
[SyncThread:0:MBeanRegistry@128] - Unregister MBean 
[org.apache.ZooKeeperService:name0=StandaloneServer_port30317,name1=Connections,name2=127.0.0.1,name3=0x10115deb0c20000]
    [junit] 2016-07-05 20:04:22,334 [myid:] - INFO  [main:ZooKeeper@1313] - 
Session: 0x10115deb0c20000 closed
    [junit] 2016-07-05 20:04:22,334 [myid:] - INFO  
[main-EventThread:ClientCnxn$EventThread@513] - EventThread shut down for 
session: 0x10115deb0c20000
    [junit] 2016-07-05 20:04:22,334 [myid:] - INFO  
[main:JUnit4ZKTestRunner$LoggedInvokeMethod@82] - Memory used 148933
    [junit] 2016-07-05 20:04:22,335 [myid:] - INFO  
[main:JUnit4ZKTestRunner$LoggedInvokeMethod@87] - Number of threads 1641
    [junit] 2016-07-05 20:04:22,335 [myid:] - INFO  
[main:JUnit4ZKTestRunner$LoggedInvokeMethod@102] - FINISHED TEST METHOD 
testWatcherAutoResetWithLocal
    [junit] 2016-07-05 20:04:22,335 [myid:] - INFO  [main:ClientBase@543] - 
tearDown starting
    [junit] 2016-07-05 20:04:22,335 [myid:] - INFO  [main:ClientBase@513] - 
STOPPING server
    [junit] 2016-07-05 20:04:22,335 [myid:] - INFO  
[main:NettyServerCnxnFactory@464] - shutdown called 0.0.0.0/0.0.0.0:30317
    [junit] 2016-07-05 20:04:22,339 [myid:127.0.0.1:30197] - INFO  
[main-SendThread(127.0.0.1:30197):ClientCnxn$SendThread@1113] - Opening socket 
connection to server 127.0.0.1/127.0.0.1:30197. Will not attempt to 
authenticate using SASL (unknown error)
    [junit] 2016-07-05 20:04:22,339 [myid:127.0.0.1:30197] - WARN  
[main-SendThread(127.0.0.1:30197):ClientCnxn$SendThread@1235] - Session 
0x20115dbbbb00000 for server 127.0.0.1/127.0.0.1:30197, unexpected error, 
closing socket connection and attempting reconnect
    [junit] java.net.ConnectException: Connection refused
    [junit]     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    [junit]     at 
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
    [junit]     at 
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:357)
    [junit]     at 
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1214)
    [junit] 2016-07-05 20:04:22,340 [myid:] - INFO  [main:ZooKeeperServer@498] 
- shutting down
    [junit] 2016-07-05 20:04:22,340 [myid:] - INFO  
[main:SessionTrackerImpl@232] - Shutting down
    [junit] 2016-07-05 20:04:22,341 [myid:] - INFO  
[main:PrepRequestProcessor@965] - Shutting down
    [junit] 2016-07-05 20:04:22,341 [myid:] - INFO  
[main:SyncRequestProcessor@191] - Shutting down
    [junit] 2016-07-05 20:04:22,341 [myid:] - INFO  [ProcessThread(sid:0 
cport:30317)::PrepRequestProcessor@154] - PrepRequestProcessor exited loop!
    [junit] 2016-07-05 20:04:22,341 [myid:] - INFO  
[SyncThread:0:SyncRequestProcessor@169] - SyncRequestProcessor exited!
    [junit] 2016-07-05 20:04:22,341 [myid:] - INFO  
[main:FinalRequestProcessor@479] - shutdown of request processor complete
    [junit] 2016-07-05 20:04:22,342 [myid:] - INFO  [main:MBeanRegistry@128] - 
Unregister MBean 
[org.apache.ZooKeeperService:name0=StandaloneServer_port30317,name1=InMemoryDataTree]
    [junit] 2016-07-05 20:04:22,342 [myid:] - INFO  [main:MBeanRegistry@128] - 
Unregister MBean [org.apache.ZooKeeperService:name0=StandaloneServer_port30317]
    [junit] 2016-07-05 20:04:22,342 [myid:] - INFO  
[main:FourLetterWordMain@85] - connecting to 127.0.0.1 30317
    [junit] 2016-07-05 20:04:22,343 [myid:] - INFO  [main:JMXEnv@146] - 
ensureOnly:[]
    [junit] 2016-07-05 20:04:22,348 [myid:] - INFO  [main:ClientBase@568] - 
fdcount after test is: 4821 at start it was 4821
    [junit] 2016-07-05 20:04:22,348 [myid:] - INFO  [main:ZKTestCase$1@65] - 
SUCCEEDED testWatcherAutoResetWithLocal
    [junit] 2016-07-05 20:04:22,348 [myid:] - INFO  [main:ZKTestCase$1@60] - 
FINISHED testWatcherAutoResetWithLocal
    [junit] Tests run: 101, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 
490.196 sec, Thread: 8, Class: org.apache.zookeeper.test.NioNettySuiteTest
    [junit] 2016-07-05 20:04:22,432 [myid:127.0.0.1:30200] - INFO  
[main-SendThread(127.0.0.1:30200):ClientCnxn$SendThread@1113] - Opening socket 
connection to server 127.0.0.1/127.0.0.1:30200. Will not attempt to 
authenticate using SASL (unknown error)
    [junit] 2016-07-05 20:04:22,432 [myid:127.0.0.1:30200] - WARN  
[main-SendThread(127.0.0.1:30200):ClientCnxn$SendThread@1235] - Session 
0x30115dbbc1c0000 for server 127.0.0.1/127.0.0.1:30200, unexpected error, 
closing socket connection and attempting reconnect
    [junit] java.net.ConnectException: Connection refused
    [junit]     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    [junit]     at 
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
    [junit]     at 
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:357)
    [junit]     at 
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1214)
    [junit] 2016-07-05 20:04:22,459 [myid:127.0.0.1:30194] - INFO  
[main-SendThread(127.0.0.1:30194):ClientCnxn$SendThread@1113] - Opening socket 
connection to server 127.0.0.1/127.0.0.1:30194. Will not attempt to 
authenticate using SASL (unknown error)
    [junit] 2016-07-05 20:04:22,459 [myid:127.0.0.1:30194] - WARN  
[main-SendThread(127.0.0.1:30194):ClientCnxn$SendThread@1235] - Session 
0x10115dbbbb00000 for server 127.0.0.1/127.0.0.1:30194, unexpected error, 
closing socket connection and attempting reconnect
    [junit] java.net.ConnectException: Connection refused
    [junit]     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    [junit]     at 
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
    [junit]     at 
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:357)
    [junit]     at 
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1214)
    [junit] 2016-07-05 20:04:22,507 [myid:] - INFO  
[SessionTracker:SessionTrackerImpl@158] - SessionTrackerImpl exited loop!
    [junit] 2016-07-05 20:04:22,508 [myid:] - INFO  
[SessionTracker:SessionTrackerImpl@158] - SessionTrackerImpl exited loop!

BUILD FAILED
/home/jenkins/jenkins-slave/workspace/ZooKeeper-trunk-openjdk7/trunk/build.xml:1207:
 Tests failed!

Total time: 12 minutes 23 seconds
Build step 'Invoke Ant' marked build as failure
Recording test results
Email was triggered for: Failure - Any
Sending email for trigger: Failure - Any



###################################################################################
############################## FAILED TESTS (if any) 
##############################
16 tests failed.
FAILED:  
org.apache.zookeeper.test.FollowerResyncConcurrencyTest.testResyncByDiffAfterFollowerCrashes

Error Message:
Did not connect

Stack Trace:
java.util.concurrent.TimeoutException: Did not connect
        at 
org.apache.zookeeper.test.ClientBase$CountdownWatcher.waitForConnected(ClientBase.java:132)
        at 
org.apache.zookeeper.test.FollowerResyncConcurrencyTest.createClient(FollowerResyncConcurrencyTest.java:547)
        at 
org.apache.zookeeper.test.FollowerResyncConcurrencyTest.testResyncByDiffAfterFollowerCrashes(FollowerResyncConcurrencyTest.java:416)
        at 
org.apache.zookeeper.JUnit4ZKTestRunner$LoggedInvokeMethod.evaluate(JUnit4ZKTestRunner.java:79)


FAILED:  org.apache.zookeeper.test.AsyncHammerTest.testObserversHammer

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.test.AsyncHammerTest.testObserversHammer(AsyncHammerTest.java:208)
        at 
org.apache.zookeeper.JUnit4ZKTestRunner$LoggedInvokeMethod.evaluate(JUnit4ZKTestRunner.java:79)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testPing

Error Message:
Couldn't instantiate org.apache.zookeeper.ClientCnxnSocketNetty

Stack Trace:
java.io.IOException: Couldn't instantiate 
org.apache.zookeeper.ClientCnxnSocketNetty
        at 
org.apache.zookeeper.ZooKeeper.getClientCnxnSocket(ZooKeeper.java:2936)
        at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:868)
        at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:788)
        at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:928)
        at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:675)
        at 
org.apache.zookeeper.TestableZooKeeper.<init>(TestableZooKeeper.java:35)
        at 
org.apache.zookeeper.test.ClientBase.createClient(ClientBase.java:185)
        at 
org.apache.zookeeper.test.ClientBase.createClient(ClientBase.java:177)
        at 
org.apache.zookeeper.test.ClientBase.createClient(ClientBase.java:162)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:41)
Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at 
org.apache.zookeeper.ZooKeeper.getClientCnxnSocket(ZooKeeper.java:2933)
Caused by: java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949)
        at 
java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1371)
        at 
org.jboss.netty.util.internal.DeadLockProofWorker.start(DeadLockProofWorker.java:38)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.openSelector(AbstractNioSelector.java:368)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.<init>(AbstractNioSelector.java:100)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioWorker.<init>(AbstractNioWorker.java:52)
        at 
org.jboss.netty.channel.socket.nio.NioWorker.<init>(NioWorker.java:45)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.newWorker(NioWorkerPool.java:44)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.newWorker(NioWorkerPool.java:28)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioWorkerPool.init(AbstractNioWorkerPool.java:80)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:39)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:33)
        at 
org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory.<init>(NioClientSocketChannelFactory.java:151)
        at 
org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory.<init>(NioClientSocketChannelFactory.java:116)
        at 
org.apache.zookeeper.ClientCnxnSocketNetty.<init>(ClientCnxnSocketNetty.java:71)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testACLs

Error Message:
Couldn't instantiate org.apache.zookeeper.ClientCnxnSocketNetty

Stack Trace:
java.io.IOException: Couldn't instantiate 
org.apache.zookeeper.ClientCnxnSocketNetty
        at 
org.apache.zookeeper.ZooKeeper.getClientCnxnSocket(ZooKeeper.java:2936)
        at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:868)
        at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:788)
        at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:928)
        at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:675)
        at 
org.apache.zookeeper.TestableZooKeeper.<init>(TestableZooKeeper.java:35)
        at 
org.apache.zookeeper.test.ClientBase.createClient(ClientBase.java:185)
        at 
org.apache.zookeeper.test.ClientBase.createClient(ClientBase.java:177)
        at 
org.apache.zookeeper.test.ClientBase.createClient(ClientBase.java:162)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:41)
Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at 
org.apache.zookeeper.ZooKeeper.getClientCnxnSocket(ZooKeeper.java:2933)
Caused by: java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949)
        at 
java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1371)
        at 
org.jboss.netty.util.internal.DeadLockProofWorker.start(DeadLockProofWorker.java:38)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.openSelector(AbstractNioSelector.java:368)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.<init>(AbstractNioSelector.java:100)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioWorker.<init>(AbstractNioWorker.java:52)
        at 
org.jboss.netty.channel.socket.nio.NioWorker.<init>(NioWorker.java:45)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.newWorker(NioWorkerPool.java:44)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.newWorker(NioWorkerPool.java:28)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioWorkerPool.init(AbstractNioWorkerPool.java:80)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:39)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:33)
        at 
org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory.<init>(NioClientSocketChannelFactory.java:151)
        at 
org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory.<init>(NioClientSocketChannelFactory.java:116)
        at 
org.apache.zookeeper.ClientCnxnSocketNetty.<init>(ClientCnxnSocketNetty.java:71)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testClientCleanup

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.server.ZooKeeperServer.setupRequestProcessors(ZooKeeperServer.java:459)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startup(ZooKeeperServer.java:445)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.startup(NettyServerCnxnFactory.java:511)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
        at 
org.apache.zookeeper.test.ClientBase.startServerInstance(ClientBase.java:363)
        at org.apache.zookeeper.test.ClientBase.startServer(ClientBase.java:469)
        at org.apache.zookeeper.test.ClientBase.setUp(ClientBase.java:460)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:37)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testClientwithoutWatcherObj

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startSessionTracker(ZooKeeperServer.java:486)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startup(ZooKeeperServer.java:444)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.startup(NettyServerCnxnFactory.java:511)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
        at 
org.apache.zookeeper.test.ClientBase.startServerInstance(ClientBase.java:363)
        at org.apache.zookeeper.test.ClientBase.startServer(ClientBase.java:469)
        at org.apache.zookeeper.test.ClientBase.setUp(ClientBase.java:460)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:37)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testSequentialNodeData

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startSessionTracker(ZooKeeperServer.java:486)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startup(ZooKeeperServer.java:444)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.startup(NettyServerCnxnFactory.java:511)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
        at 
org.apache.zookeeper.test.ClientBase.startServerInstance(ClientBase.java:363)
        at org.apache.zookeeper.test.ClientBase.startServer(ClientBase.java:469)
        at org.apache.zookeeper.test.ClientBase.setUp(ClientBase.java:460)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:37)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testSequentialNodeNames

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startSessionTracker(ZooKeeperServer.java:486)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startup(ZooKeeperServer.java:444)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.startup(NettyServerCnxnFactory.java:511)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
        at 
org.apache.zookeeper.test.ClientBase.startServerInstance(ClientBase.java:363)
        at org.apache.zookeeper.test.ClientBase.startServer(ClientBase.java:469)
        at org.apache.zookeeper.test.ClientBase.setUp(ClientBase.java:460)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:37)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testClientWithWatcherObj

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startSessionTracker(ZooKeeperServer.java:486)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startup(ZooKeeperServer.java:444)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.startup(NettyServerCnxnFactory.java:511)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
        at 
org.apache.zookeeper.test.ClientBase.startServerInstance(ClientBase.java:363)
        at org.apache.zookeeper.test.ClientBase.startServer(ClientBase.java:469)
        at org.apache.zookeeper.test.ClientBase.setUp(ClientBase.java:460)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:37)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testTestability

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startSessionTracker(ZooKeeperServer.java:486)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startup(ZooKeeperServer.java:444)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.startup(NettyServerCnxnFactory.java:511)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
        at 
org.apache.zookeeper.test.ClientBase.startServerInstance(ClientBase.java:363)
        at org.apache.zookeeper.test.ClientBase.startServer(ClientBase.java:469)
        at org.apache.zookeeper.test.ClientBase.setUp(ClientBase.java:460)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:37)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testNullAuthId

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startSessionTracker(ZooKeeperServer.java:486)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startup(ZooKeeperServer.java:444)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.startup(NettyServerCnxnFactory.java:511)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
        at 
org.apache.zookeeper.test.ClientBase.startServerInstance(ClientBase.java:363)
        at org.apache.zookeeper.test.ClientBase.startServer(ClientBase.java:469)
        at org.apache.zookeeper.test.ClientBase.setUp(ClientBase.java:460)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:37)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testNonExistingOpCode

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startSessionTracker(ZooKeeperServer.java:486)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startup(ZooKeeperServer.java:444)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.startup(NettyServerCnxnFactory.java:511)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
        at 
org.apache.zookeeper.test.ClientBase.startServerInstance(ClientBase.java:363)
        at org.apache.zookeeper.test.ClientBase.startServer(ClientBase.java:469)
        at org.apache.zookeeper.test.ClientBase.setUp(ClientBase.java:460)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:37)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testDeleteWithChildren

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startSessionTracker(ZooKeeperServer.java:486)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startup(ZooKeeperServer.java:444)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.startup(NettyServerCnxnFactory.java:511)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
        at 
org.apache.zookeeper.test.ClientBase.startServerInstance(ClientBase.java:363)
        at org.apache.zookeeper.test.ClientBase.startServer(ClientBase.java:469)
        at org.apache.zookeeper.test.ClientBase.setUp(ClientBase.java:460)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:37)


FAILED:  org.apache.zookeeper.test.ChrootClientTest.testPathValidation

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startSessionTracker(ZooKeeperServer.java:486)
        at 
org.apache.zookeeper.server.ZooKeeperServer.startup(ZooKeeperServer.java:444)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.startup(NettyServerCnxnFactory.java:511)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.startup(ServerCnxnFactory.java:98)
        at 
org.apache.zookeeper.test.ClientBase.startServerInstance(ClientBase.java:363)
        at org.apache.zookeeper.test.ClientBase.startServer(ClientBase.java:469)
        at org.apache.zookeeper.test.ClientBase.setUp(ClientBase.java:460)
        at 
org.apache.zookeeper.test.ChrootClientTest.setUp(ChrootClientTest.java:37)


FAILED:  org.apache.zookeeper.test.AsyncHammerTest.testHammer

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
org.apache.zookeeper.test.AsyncHammerTest.testHammer(AsyncHammerTest.java:177)
        at 
org.apache.zookeeper.JUnit4ZKTestRunner$LoggedInvokeMethod.evaluate(JUnit4ZKTestRunner.java:79)


FAILED:  org.apache.zookeeper.test.AsyncHammerTest.testObserversHammer

Error Message:
unable to create new native thread

Stack Trace:
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:714)
        at 
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949)
        at 
java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1371)
        at 
org.jboss.netty.util.internal.DeadLockProofWorker.start(DeadLockProofWorker.java:38)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.openSelector(AbstractNioSelector.java:368)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.<init>(AbstractNioSelector.java:100)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioWorker.<init>(AbstractNioWorker.java:52)
        at 
org.jboss.netty.channel.socket.nio.NioWorker.<init>(NioWorker.java:45)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.newWorker(NioWorkerPool.java:44)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.newWorker(NioWorkerPool.java:28)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioWorkerPool.init(AbstractNioWorkerPool.java:80)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:39)
        at 
org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:33)
        at 
org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory.<init>(NioServerSocketChannelFactory.java:149)
        at 
org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory.<init>(NioServerSocketChannelFactory.java:131)
        at 
org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory.<init>(NioServerSocketChannelFactory.java:115)
        at 
org.apache.zookeeper.server.NettyServerCnxnFactory.<init>(NettyServerCnxnFactory.java:329)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at java.lang.Class.newInstance(Class.java:374)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.createFactory(ServerCnxnFactory.java:133)
        at 
org.apache.zookeeper.server.ServerCnxnFactory.createFactory(ServerCnxnFactory.java:152)
        at 
org.apache.zookeeper.server.quorum.QuorumPeer.<init>(QuorumPeer.java:862)
        at 
org.apache.zookeeper.test.QuorumBase.startServers(QuorumBase.java:175)
        at org.apache.zookeeper.test.QuorumBase.setUp(QuorumBase.java:120)
        at 
org.apache.zookeeper.test.AsyncHammerTest.setUp(AsyncHammerTest.java:52)
        at 
org.apache.zookeeper.test.AsyncHammerTest.testObserversHammer(AsyncHammerTest.java:203)
        at 
org.apache.zookeeper.JUnit4ZKTestRunner$LoggedInvokeMethod.evaluate(JUnit4ZKTestRunner.java:79)


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