Java – camel FTP seems to hang forever

I have a camel route. It's like being hanged forever. I'm not sure whether it's a camel or an FTP client problem The sotimeout of the FTP component is set to 60000 Thank you for any help

Thread dump:

"Camel (some-ftp-route) thread #57 - ftp://user@ftphost/folder" Id=338 in RUNNABLE (running in native)
at java.net.socketInputStream.socketRead0(Native Method)
at java.net.socketInputStream.read(SocketInputStream.java:129)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
  - locked java.io.InputStreamReader@6a3f933a
at java.io.InputStreamReader.read(InputStreamReader.java:167)
at java.io.BufferedReader.fill(BufferedReader.java:136)
at java.io.BufferedReader.readLine(BufferedReader.java:299)
  - locked java.io.InputStreamReader@6a3f933a
at java.io.BufferedReader.readLine(BufferedReader.java:362)
at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:295)
at org.apache.commons.net.ftp.FTP._connectAction_(FTP.java:365)
at org.apache.commons.net.ftp.FTPClient._connectAction_(FTPClient.java:630)
at org.apache.commons.net.socketClient.connect(SocketClient.java:164)
at org.apache.commons.net.socketClient.connect(SocketClient.java:184)
at org.apache.camel.component.file.remote.FtpOperations.connect(FtpOperations.java:91)
at org.apache.camel.component.file.remote.RemoteFileConsumer.connectIfNecessary(RemoteFileConsumer.java:144)
at org.apache.camel.component.file.remote.RemoteFileConsumer.recoverableConnectIfNecessary(RemoteFileConsumer.java:123)
at org.apache.camel.component.file.remote.RemoteFileConsumer.prePollCheck(RemoteFileConsumer.java:56)
at org.apache.camel.component.file.GenericFileConsumer.poll(GenericFileConsumer.java:100)
at org.apache.camel.impl.ScheduledPollConsumer.doRun(ScheduledPollConsumer.java:139)
at org.apache.camel.impl.ScheduledPollConsumer.run(ScheduledPollConsumer.java:91)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

I'm surprised sotimeout doesn't work It hung up for almost a day

Solution

This has been in camel 2.13 4,2.14. 2 and 2.15 Repair in 0

Camel 2.15. The submission of 0 is as follows: https://github.com/apache/camel/commit/3774c01e71cf8715e90673328655fd426242e7ba