Found one Java-level deadlock:
=============================
"Thread-1":
  waiting to lock monitor 0x15d919e0 (object 0x0508e170, a java.util.logging.LogManager),
  which is held by "main"
"main":
  waiting for ownable synchronizer 0x0508e460, (a java.util.concurrent.locks.ReentrantLock$NonfairSync),
  which is held by "Thread-1"

Java stack information for the threads listed above:
===================================================
"Thread-1":
at java.util.logging.LogManager.ensureLogManagerInitialized(LogManager.java:360)
- waiting to lock <0x0508e170> (a java.util.logging.LogManager)
at java.util.logging.LogManager$LoggerContext.requiresDefaultLoggers(LogManager.java:605)
at java.util.logging.LogManager$LoggerContext.ensureInitialized(LogManager.java:647)
at java.util.logging.LogManager$LoggerContext.getLoggerNames(LogManager.java:841)
- locked <0x0508e308> (a java.util.logging.LogManager$SystemLoggerContext)
at java.util.logging.LogManager.resetLoggerContext(LogManager.java:1363)
at java.util.logging.LogManager.reset(LogManager.java:1353)
at java.util.logging.LogManager$Cleaner.run(LogManager.java:282)
"main":
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x0508e460> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)
at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
at java.util.logging.LogManager.readConfiguration(LogManager.java:1450)
at java.util.logging.LogManager.readConfiguration(LogManager.java:1307)
at java.util.logging.LogManager$3.run(LogManager.java:442)
at java.util.logging.LogManager$3.run(LogManager.java:439)
at java.security.AccessController.doPrivileged(Native Method)
at java.util.logging.LogManager.readPrimordialConfiguration(LogManager.java:439)
- locked <0x0508e170> (a java.util.logging.LogManager)
at java.util.logging.LogManager.access$800(LogManager.java:158)
at java.util.logging.LogManager$2.run(LogManager.java:388)
at java.security.AccessController.doPrivileged(Native Method)
at java.util.logging.LogManager.ensureLogManagerInitialized(LogManager.java:381)
- locked <0x0508e170> (a java.util.logging.LogManager)
at java.util.logging.LogManager.getLogManager(LogManager.java:421)
at LoggingDeadlock2$JavaChild.main(LoggingDeadlock2.java:140)

Found 1 deadlock.