App Engine - As Queue and WithoutError Detection

[AnanlaTech]

Please find the logs below,

I am getting the error that thread locked... and still running.

Threads still running after 10 seconds: Thread[Thread-7,5,Request #1] ... sun.misc.Unsafe.park(Native Method) ... java.util.concurrent.locks.LockSupport.park(LockSupport.java:186) ... java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043) ... java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442) ... com.notnoop.apns.internal.QueuedApnsService$1.run(QueuedApnsService.java:94) ... com.google.apphosting.runtime.ApiProxyImpl$CurrentRequestThreadFactory$1$1.run(ApiProxyImpl.java:1178) ... java.security.AccessController.doPrivileged(Native Method) ... com.google.apphosting.runtime.ApiProxyImpl$CurrentRequestThreadFactory$1.run(ApiProxyImpl.java:1172) ... java.lang.Thread.run(Thread.java:745) ... com.google.apphosting.runtime.ApiProxyImpl$CurrentRequestThreadFactory$2$1.run(ApiProxyImpl.java:1223)