SFTP error in OSB

Question

I have configured SFTP in proxy service by giving Request Message Type as text,*Protocol* : sftp *,Endpoint URI* :sftp://hostname:port//Filelocation
SFTP Configuration User Autentication :username Password,*Service Account*: browsed the service account that i have created in the project
I have created known_hosts text file and placed that text file in C:\Oracle\Middleware\user_projects\domains\base_domain\osb\config\transports\sftp
and even i tried by placing the same text file in another location C:\Oracle\Middleware\user_projects\domains\base_domain\config\osb\transports\sftp
I'm getting the following error in OSB_server.
<Error> <SFTPTransport> <BEA-381841> <known_hosts file does not exist or it does not have read permissions.>
<Error> <SFTPTransport> <BEA-381828> <SFTPClientException occured, message is :: known_hosts file does not exist or it does not have read permissions.>
<Mar 28, 2013 4:41:07 PM IST> <Error> <WliSbTransports> <BEA-381602> <Error encountered while polling the resource for the service endpoint ProxyService$OSB_SFTP Project$Adapter$SFTP_ProxyService: com.bea.wli.sb.transports.TransportException: known_hosts file does not exist or it does not have read permissions.
com.bea.wli.sb.transports.TransportException: known_hosts file does not exist or it does not have read permissions.
at com.bea.wli.sb.transports.sftp.connector.SFTPWorkPartitioningAgent.execute(SFTPWorkPartitioningAgent.java:125)
at com.bea.wli.sb.transports.poller.TransportTimerListener.run(TransportTimerListener.java:74)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
Truncated. see log file for complete stacktrace
Caused By: com.bea.wli.sb.transports.TransportException: known_hosts file does not exist or it does not have read permissions.
at com.bea.wli.sb.transports.sftp.connector.SFTPWorkPartitioningAgent.getSftpResource(SFTPWorkPartitioningAgent.java:165)
at com.bea.wli.sb.transports.sftp.connector.SFTPWorkPartitioningAgent.execute(SFTPWorkPartitioningAgent.java:58)
at com.bea.wli.sb.transports.poller.TransportTimerListener.run(TransportTimerListener.java:74)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
Truncated. see log file for complete stacktrace
Caused By: com.sshtools.j2ssh.transport.InvalidHostFileException: known_hosts file does not exist or it does not have read permissions.
at com.bea.wli.sb.transports.sftp.client.KnownHostVerifier.validateKnownHosts(KnownHostVerifier.java:144)
at com.bea.wli.sb.transports.sftp.client.SFTPClient.authenticate(SFTPClient.java:108)
at com.bea.wli.sb.transports.sftp.connector.SFTPResource.<init>(SFTPResource.java:78)
at com.bea.wli.sb.transports.sftp.resource.SFTPUtils.createSFTPResource(SFTPUtils.java:170)
at com.bea.wli.sb.transports.sftp.connector.SFTPWorkPartitioningAgent.getSftpResource(SFTPWorkPartitioningAgent.java:148)
Truncated. see log file for complete stacktrace
>
Regards,
Anusha
Edited by: 996727 on Mar 28, 2013 4:37 AM
Edited by: 996727 on Mar 28, 2013 4:43 AM

Answer 1

Hi Patrick,
thanks for your reply.
Now that error is resolved and the new error is as shown below.
<Apr 1, 2013 12:46:37 PM IST> <Error> <WliSbTransports> <BEA-381602> <Error encountered while polling the resource for the service endpoint ProxyService$OSB_SFTP Project$ProxyService$SFTP_ProxyService: com.bea.wli.sb.transports.TransportException
com.bea.wli.sb.transports.TransportException
at com.bea.wli.sb.transports.sftp.connector.SFTPWorkPartitioningAgent.execute(SFTPWorkPartitioningAgent.java:125)
at com.bea.wli.sb.transports.poller.TransportTimerListener.run(TransportTimerListener.java:74)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
Truncated. see log file for complete stacktrace
Caused By: java.lang.NullPointerException
at java.io.ByteArrayInputStream.<init>(ByteArrayInputStream.java:89)
at com.sshtools.j2ssh.io.ByteArrayReader.<init>(Unknown Source)
at com.sshtools.j2ssh.transport.publickey.SshKeyPairFactory.decodePublicKey(Unknown Source)
at com.bea.wli.sb.transports.sftp.client.KnownHostVerifier.validateKnownHosts(KnownHostVerifier.java:111)
at com.bea.wli.sb.transports.sftp.client.SFTPClient.authenticate(SFTPClient.java:108)
Truncated. see log file for complete stacktrace
>
Bad Base64 input character at 3: 45(decimal)
Regards,
Anusha.