Why recieving error message- `handshake_failure. Code: 234` with camel FTPS component ?

Issue

• I'm using the camel-ftp component to do ftp over ssl (ftps) i can see the connection from the endpoint to the SFTPPlus server in a tcpdump and i can see a client hello and a server hello and the server sends its certificate, but the connection is closed as the client is not sending its certificate back to the server.

• I would expect it to send it back automatically, but is there any option that need to be set to force the component to send its certificate?

• Error logs

2015-10-08 21:21:20,437 | WARN  | xxx/yyy/zzz | FtpConsumer                      | rg.apache.camel.util.CamelLogger  224 | 141 - org.apache.camel.camel-core - 2.15.3 | Consumer FtpConsumer[ftps://devops@HOSTNAME:15030/xxx/yyy/zzz?binary=false&delay=5000&delete=true&passiveMode=true&password=xxxxxx&readLock=rename&securityProtocol=TLS&throwExceptionOnConnectFailed=true] failed polling endpoint: Endpoint[ftps://devops@HOSTNAME:15030/var/sftpplus/test?binary=false&delay=5000&delete=true&passiveMode=true&password=xxxxxx&readLock=rename&securityProtocol=TLS&throwExceptionOnConnectFailed=true]. Will try again at next poll. Caused by: [org.apache.camel.component.file.GenericFileOperationFailedException - File operation failed: 234 Security data exchange complete.
 Received fatal alert: handshake_failure. Code: 234]
org.apache.camel.component.file.GenericFileOperationFailedException: File operation failed: 234 Security data exchange complete.
 Received fatal alert: handshake_failure. Code: 234
    at org.apache.camel.component.file.remote.FtpOperations.connect(FtpOperations.java:117)[143:org.apache.camel.camel-ftp:2.15.3]
    at org.apache.camel.component.file.remote.FtpsOperations.connect(FtpsOperations.java:40)[143:org.apache.camel.camel-ftp:2.15.3]
    at org.apache.camel.component.file.remote.RemoteFileConsumer.connectIfNecessary(RemoteFileConsumer.java:203)[143:org.apache.camel.camel-ftp:2.15.3]
    at org.apache.camel.component.file.remote.RemoteFileConsumer.recoverableConnectIfNecessary(RemoteFileConsumer.java:183)[143:org.apache.camel.camel-ftp:2.15.3]
    at org.apache.camel.component.file.remote.RemoteFileConsumer.prePollCheck(RemoteFileConsumer.java:59)[143:org.apache.camel.camel-ftp:2.15.3]
    at org.apache.camel.component.file.GenericFileConsumer.poll(GenericFileConsumer.java:106)[141:org.apache.camel.camel-core:2.15.3]
    at org.apache.camel.impl.ScheduledPollConsumer.doRun(ScheduledPollConsumer.java:174)[141:org.apache.camel.camel-core:2.15.3]
    at org.apache.camel.impl.ScheduledPollConsumer.run(ScheduledPollConsumer.java:101)[141:org.apache.camel.camel-core:2.15.3]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)[:1.7.0_75]
    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)[:1.7.0_75]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)[:1.7.0_75]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)[:1.7.0_75]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)[:1.7.0_75]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)[:1.7.0_75]
    at java.lang.Thread.run(Thread.java:745)[:1.7.0_75]
Caused by: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)[:1.7.0_75]
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:154)[:1.7.0_75]
    at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:1979)[:1.7.0_75]
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1086)[:1.7.0_75]
    at sun.security.ssl.SSLSocketImpl.waitForClose(SSLSocketImpl.java:1725)[:1.7.0_75]
    at sun.security.ssl.HandshakeOutStream.flush(HandshakeOutStream.java:122)[:1.7.0_75]
    at sun.security.ssl.Handshaker.sendChangeCipherSpec(Handshaker.java:1005)[:1.7.0_75]
    at sun.security.ssl.ClientHandshaker.sendChangeCipherAndFinish(ClientHandshaker.java:1161)[:1.7.0_75]
    at sun.security.ssl.ClientHandshaker.serverHelloDone(ClientHandshaker.java:1073)[:1.7.0_75]
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:341)[:1.7.0_75]
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:901)[:1.7.0_75]
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:837)[:1.7.0_75]
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1023)[:1.7.0_75]
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1332)[:1.7.0_75]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1359)[:1.7.0_75]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1343)[:1.7.0_75]
    at org.apache.commons.net.ftp.FTPSClient.sslNegotiation(FTPSClient.java:269)[135:org.apache.commons.net:3.3.0]
    at org.apache.commons.net.ftp.FTPSClient._connectAction_(FTPSClient.java:211)[135:org.apache.commons.net:3.3.0]
    at org.apache.commons.net.SocketClient.connect(SocketClient.java:183)[135:org.apache.commons.net:3.3.0]
    at org.apache.commons.net.SocketClient.connect(SocketClient.java:203)[135:org.apache.commons.net:3.3.0]
    at org.apache.camel.component.file.remote.FtpOperations.connect(FtpOperations.java:96)[143:org.apache.camel.camel-ftp:2.15.3]
    ... 14 more