title: Write to log whenever Spring Integration Poller fires
body: <p>Is there a way to log a debug statement whenever the Spring Integration Poller polling event fires?  I'm trying to figure out what is wrong with my poller, which seems to hang for larger intervals.  I'd like to start be simply writing to a log whenever the polling event fires.  Here's my poller bean definition:</p>
  
  <pre><code>@Bean(name = PollerMetadata.DEFAULT_POLLER)
  public PollerMetadata poller() {
      PollerMetadata pollerMetadata = new PollerMetadata();
      System.out.println("===============POLL INTERVAL: " + this.pollInterval + " seconds.");
      pollerMetadata.setTrigger(new PeriodicTrigger(this.pollInterval, TimeUnit.SECONDS));
      return pollerMetadata;
  }
  </code></pre>
  
  <p>Here's the start of the thread dump:</p>
  
  <pre><code>2019-12-16 14:12:03
  Full thread dump OpenJDK 64-Bit Server VM (25.232-b09 mixed mode):
  
  "Attach Listener" #5508 daemon prio=9 os_prio=0 tid=0x00007f2c78002000 nid=0x171e waiting on condition [0x0000000000000000]
     java.lang.Thread.State: RUNNABLE
  
  "logback-8" #254 daemon prio=5 os_prio=0 tid=0x00007f2c4c7d4800 nid=0x104 waiting on condition [0x00007f2c0befd000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541a7bd80&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "logback-7" #253 daemon prio=5 os_prio=0 tid=0x00007f2c4c00a000 nid=0x103 waiting on condition [0x00007f2c64266000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541a7bd80&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "s3-transfer-manager-worker-10" #230 prio=5 os_prio=0 tid=0x00007f2bf408f800 nid=0xec waiting on condition [0x00007f2c0bffe000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541478e20&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "s3-transfer-manager-worker-9" #229 prio=5 os_prio=0 tid=0x00007f2c400a0800 nid=0xeb waiting on condition [0x00007f2c64165000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541478e20&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "logback-6" #225 daemon prio=5 os_prio=0 tid=0x00007f2c40358800 nid=0xe7 waiting on condition [0x00007f2c64367000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541a7bd80&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "logback-5" #224 daemon prio=5 os_prio=0 tid=0x00007f2c400b3000 nid=0xe6 waiting on condition [0x00007f2c64468000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541a7bd80&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "logback-4" #223 daemon prio=5 os_prio=0 tid=0x00007f2c400b2000 nid=0xe5 waiting on condition [0x00007f2c6466a000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541a7bd80&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "s3-transfer-manager-worker-8" #216 prio=5 os_prio=0 tid=0x00007f2c400a4000 nid=0xde waiting on condition [0x00007f2c64569000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541478e20&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "logback-3" #208 daemon prio=5 os_prio=0 tid=0x00007f2c4035f000 nid=0xd6 waiting on condition [0x00007f2c6486c000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541a7bd80&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "s3-transfer-manager-worker-7" #205 prio=5 os_prio=0 tid=0x00007f2c40359800 nid=0xd3 waiting on condition [0x00007f2c6476b000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541478e20&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "logback-2" #194 daemon prio=5 os_prio=0 tid=0x00007f2c40015000 nid=0xc8 waiting on condition [0x00007f2c64f6f000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541a7bd80&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "s3-transfer-manager-worker-6" #189 prio=5 os_prio=0 tid=0x00007f2c4000c000 nid=0xc3 waiting on condition [0x00007f2c64d6d000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541478e20&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "s3-transfer-manager-worker-5" #124 prio=5 os_prio=0 tid=0x00007f2c400f5000 nid=0x82 waiting on condition [0x00007f2c64e6e000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541478e20&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "logback-1" #116 daemon prio=5 os_prio=0 tid=0x00007f2c40005000 nid=0x7a waiting on condition [0x00007f2c65070000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541a7bd80&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "task-scheduler-10" #55 prio=5 os_prio=0 tid=0x00007f2c40002800 nid=0x3d waiting on condition [0x00007f2c65171000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541283270&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "task-scheduler-9" #53 prio=5 os_prio=0 tid=0x00007f2c54c5d800 nid=0x3b waiting on condition [0x00007f2c65272000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541283270&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "task-scheduler-8" #52 prio=5 os_prio=0 tid=0x00007f2c50002800 nid=0x3a waiting on condition [0x00007f2c65573000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541283270&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "task-scheduler-7" #51 prio=5 os_prio=0 tid=0x00007f2c59be2000 nid=0x39 runnable [0x00007f2c65673000]
     java.lang.Thread.State: RUNNABLE
          at java.net.SocketInputStream.socketRead0(Native Method)
          at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
          at java.net.SocketInputStream.read(SocketInputStream.java:171)
          at java.net.SocketInputStream.read(SocketInputStream.java:141)
          at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
          at sun.security.ssl.InputRecord.read(InputRecord.java:503)
          at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975)
          - locked &lt;0x0000000568265a58&gt; (a java.lang.Object)
          at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:933)
          at sun.security.ssl.AppInputStream.read(AppInputStream.java:105)
          - locked &lt;0x0000000567aaca28&gt; (a sun.security.ssl.AppInputStream)
          at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:137)
          at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:153)
          at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:282)
          at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:138)
          at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56)
          at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259)
          at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163)
          at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:165)
          at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273)
          at com.amazonaws.http.protocol.SdkHttpRequestExecutor.doReceiveResponse(SdkHttpRequestExecutor.java:82)
          at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
          at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272)
          at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185)
          at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
          at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
          at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
          at com.amazonaws.http.apache.client.impl.SdkHttpClient.execute(SdkHttpClient.java:72)
          at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1236)
          at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1056)
          at com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:743)
          at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:717)
          at com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:699)
          at com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$500(AmazonHttpClient.java:667)
          at com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:649)
          at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:513)
          at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:4330)
          at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:4277)
          at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:4271)
          at com.amazonaws.services.s3.AmazonS3Client.listObjects(AmazonS3Client.java:835)
          at org.springframework.integration.aws.support.S3Session.list(S3Session.java:84)
          at org.springframework.integration.aws.support.S3Session.list(S3Session.java:50)
          at org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.lambda$synchronizeToLocalDirectory$0(AbstractInboundFileSynchronizer.java:275)
          at org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer$$Lambda$343/1193747226.doInSession(Unknown Source)
          at org.springframework.integration.file.remote.RemoteFileTemplate.execute(RemoteFileTemplate.java:436)
          at org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.synchronizeToLocalDirectory(AbstractInboundFileSynchronizer.java:274)
          at org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizingMessageSource.doReceive(AbstractInboundFileSynchronizingMessageSource.java:251)
          at org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizingMessageSource.doReceive(AbstractInboundFileSynchronizingMessageSource.java:65)
          at org.springframework.integration.endpoint.AbstractFetchLimitingMessageSource.doReceive(AbstractFetchLimitingMessageSource.java:43)
          at org.springframework.integration.endpoint.AbstractMessageSource.receive(AbstractMessageSource.java:154)
          at sun.reflect.GeneratedMethodAccessor140.invoke(Unknown Source)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          at java.lang.reflect.Method.invoke(Method.java:498)
          at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
          at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:197)
          at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
          at org.springframework.integration.aop.AbstractMessageSourceAdvice.invoke(AbstractMessageSourceAdvice.java:43)
          at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
          at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
          at com.sun.proxy.$Proxy85.receive(Unknown Source)
          at org.springframework.integration.endpoint.SourcePollingChannelAdapter.receiveMessage(SourcePollingChannelAdapter.java:236)
          at org.springframework.integration.endpoint.AbstractPollingEndpoint.doPoll(AbstractPollingEndpoint.java:249)
          at org.springframework.integration.endpoint.AbstractPollingEndpoint$$Lambda$329/331994761.call(Unknown Source)
          at sun.reflect.GeneratedMethodAccessor139.invoke(Unknown Source)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          at java.lang.reflect.Method.invoke(Method.java:498)
          at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
          at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:206)
          at com.sun.proxy.$Proxy84.call(Unknown Source)
          at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller.lambda$run$0(AbstractPollingEndpoint.java:378)
          at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller$$Lambda$332/585250960.run(Unknown Source)
          at org.springframework.integration.util.ErrorHandlingTaskExecutor.lambda$execute$0(ErrorHandlingTaskExecutor.java:53)
          at org.springframework.integration.util.ErrorHandlingTaskExecutor$$Lambda$333/496986343.run(Unknown Source)
          at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50)
          at org.springframework.integration.util.ErrorHandlingTaskExecutor.execute(ErrorHandlingTaskExecutor.java:51)
          at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller.run(AbstractPollingEndpoint.java:372)
          at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
          at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93)
          at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
          at java.util.concurrent.FutureTask.run(FutureTask.java:266)
          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "task-scheduler-6" #50 prio=5 os_prio=0 tid=0x00007f2c4c004800 nid=0x38 waiting on condition [0x00007f2c65775000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541283270&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  
  "task-scheduler-5" #48 prio=5 os_prio=0 tid=0x00007f2c54b96000 nid=0x36 waiting on condition [0x00007f2c65977000]
     java.lang.Thread.State: WAITING (parking)
          at sun.misc.Unsafe.park(Native Method)
          - parking to wait for  &lt;0x0000000541283270&gt; (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
          at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
          at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
          at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
          at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          at java.lang.Thread.run(Thread.java:748)
  </code></pre>