SFTP Proxy authentication not working in build SOA 12.2.1.4 (Doc ID 2884860.1)

ERROR
-----------------------
oracle.mft.TRANSPORT.: file://wsdl/Put_ptt.wsdl [ Put_ptt::Put(part,part) ] - Could not invoke operation 'Put' due to: [[

BINDING.JCA-12511
JCA Binding Component connection issue.
JCA Binding Component is unable to create an outbound JCA (CCI) connection.
file://wsdl/Put_ptt.wsdl [ Put_ptt::Put(part,part) ] - : The JCA Binding Component was unable to establish an outbound JCA CCI connection due to the following issue: Error in establishing a session with SSH Server..
Error in establishing a session with SSH Server..
Unable to establish a session with the server.
Please ensure hostname and port specified to login to the server are correct.

Please make sure that the JCA connection factory and any dependent connection factories have been configured with a sufficient limit for max connections. Please also make sure that the physical connection to the backend EIS is available and the backend itself is accepting connections.

at oracle.tip.adapter.sa.impl.fw.wsif.jca.WSIFPort_JCA$JCAConnectionPool.createJCAConnection(WSIFPort_JCA.java:1920)
at oracle.tip.adapter.sa.impl.fw.wsif.jca.WSIFPort_JCA$JCAConnectionPool$JCAConnection.init(WSIFPort_JCA.java:1608)
at oracle.tip.adapter.sa.impl.fw.wsif.jca.WSIFPort_JCA.obtainJCAConnection(WSIFPort_JCA.java:1185)
at oracle.tip.adapter.sa.impl.fw.wsif.jca.WSIFOperation_JCA.performOperation(WSIFOperation_JCA.java:427)
at oracle.tip.adapter.sa.impl.fw.wsif.jca.WSIFOperation_JCA.executeOperation(WSIFOperation_JCA.java:387)
at oracle.tip.adapter.sa.impl.fw.wsif.jca.WSIFOperation_JCA.executeRequestResponseOperation(WSIFOperation_JCA.java:346)
at oracle.tip.adapter.sa.impl.JCABindingReferenceImpl.invokeWsifProvider(JCABindingReferenceImpl.java:418)
at oracle.tip.adapter.sa.impl.JCABindingReferenceImpl.post(JCABindingReferenceImpl.java:252)
at oracle.tip.mft.transport.adapter.impl.AbstractTransportSender.send(AbstractTransportSender.java:193)
at oracle.tip.mft.transport.adapter.impl.AbstractTransportSender.send(AbstractTransportSender.java:145)
at oracle.tip.mft.transport.adapter.impl.ftp.FTPTransportSender.send(FTPTransportSender.java:66)
at oracle.tip.mft.transport.TransportManager.transferpayload(TransportManager.java:234)
at oracle.tip.mft.engine.message.handler.TargetMessageHandlerImpl.process(TargetMessageHandlerImpl.java:194)
at oracle.tip.mft.engine.message.handler.TargetMessageHandlerImpl.process(TargetMessageHandlerImpl.java:101)
at oracle.tip.mft.engine.qmessage.listener.TargetQueueMessageListener.processNonTransactedMessage(TargetQueueMessageListener.java:155)
at oracle.tip.mft.engine.qmessage.listener.TargetQueueMessageListener.processNonTransactedMessage(TargetQueueMessageListener.java:82)
at oracle.tip.mft.engine.qmessage.listener.BaseQueueMessageListener.onMessage(BaseQueueMessageListener.java:166)
at oracle.tip.mft.jms.adapters.JCAJmsMessageProcessorService$1.onMessage(JCAJmsMessageProcessorService.java:71)
at oracle.tip.mft.transport.adapter.impl.jms.JMSBindingListenerImpl.post(JMSBindingListenerImpl.java:84)
at oracle.tip.adapter.sa.impl.inbound.JCAInboundListenerImpl.onMessage(JCAInboundListenerImpl.java:226)
at oracle.tip.adapter.fw.jca.messageinflow.MessageEndpointImpl.onMessage(MessageEndpointImpl.java:707)
at oracle.tip.adapter.jms.inbound.JmsConsumer.doSend(JmsConsumer.java:773)
at oracle.tip.adapter.jms.inbound.JmsNativeConsumer.sendInboundMessage(JmsNativeConsumer.java:104)
at oracle.tip.adapter.jms.inbound.JmsNativeConsumer.send(JmsNativeConsumer.java:66)
at oracle.tip.adapter.jms.inbound.JmsConsumer.runInbound(JmsConsumer.java:1013)
at oracle.tip.adapter.jms.inbound.JmsConsumer.run(JmsConsumer.java:930)
at oracle.tip.adapter.sa.impl.fw.jca.work.WorkerJob.go(WorkerJob.java:53)
at oracle.tip.adapter.sa.impl.fw.common.ThreadPool.run(ThreadPool.java:281)
at java.lang.Thread.run(Thread.java:748)
Caused by: Error in establishing a session with SSH Server..
Error in establishing a session with SSH Server..
Unable to establish a session with the server.
Please ensure hostname and port specified to login to the server are correct.

at oracle.tip.adapter.ftp.FTPConnectionFactory.getConnection(FTPConnectionFactory.java:102)
at oracle.tip.adapter.sa.impl.fw.wsif.jca.WSIFPort_JCA$JCAConnectionPool.createJCAConnection(WSIFPort_JCA.java:1909)
... 28 more
Caused by: BINDING.JCA-11447
Error in establishing a session with SSH Server..
Error in establishing a session with SSH Server..
Unable to establish a session with the server.
Please ensure hostname and port specified to login to the server are correct.

at oracle.tip.adapter.ftp.SshImpl.SSHSessionImpl.(SSHSessionImpl.java:249)
at oracle.tip.adapter.ftp.SshImpl.SshImplFactory.getSshImpl(SshImplFactory.java:26)
at oracle.tip.adapter.ftp.SFTPManagedConnection.setupSftpConnection(SFTPManagedConnection.java:138)
at oracle.tip.adapter.ftp.SFTPManagedConnection.(SFTPManagedConnection.java:63)
at oracle.tip.adapter.ftp.FTPManagedConnectionFactory.createManagedConnection(FTPManagedConnectionFactory.java:265)
at oracle.tip.adapter.ftp.FTPConnectionManager.allocateConnection(FTPConnectionManager.java:45)
at oracle.tip.adapter.ftp.FTPConnectionFactory.getConnection(FTPConnectionFactory.java:99)
... 29 more
Caused by: BINDING.JCA-11445
The SSH API threw an exception.
The SSH API threw an exception.
The SSH API threw an exception.
Maverick has not been setup properly. Please correct the setup.

at oracle.tip.adapter.ftp.SshImpl.SSHSessionImpl.setupHttpPKA(SSHSessionImpl.java:1230)
at oracle.tip.adapter.ftp.SshImpl.SSHSessionImpl.setUpPublicKeyProxyConnection(SSHSessionImpl.java:670)
at oracle.tip.adapter.ftp.SshImpl.SSHSessionImpl.(SSHSessionImpl.java:236)
... 35 more
Caused by: java.io.IOException: Proxy tunnel setup failed: HTTP/1.1 407 Proxy Authentication Required
at com.sshtools.net.HttpProxyTransportWrapper.connectViaProxy(HttpProxyTransportWrapper.java:137)
at oracle.tip.adapter.ftp.SshImpl.SSHSessionImpl.setupHttpPKA(SSHSessionImpl.java:1191)
... 37 more

]]