FTP get operation doesn't work. However put and syncRead works.

Hello SOA Gurus,
Here is the another strange challenge I faced today with FTP adapter.
I have a JNDI which is commonly used to access an FTP server. Initially, I created one BPEL process that uses "put" operation to write a file into the FTP directory. It worked successfully.
But when I used "get" operation with the same JNDI, it doesn't work there. However, I am consistently getting the below error messages in the server log:
<Nov 28, 2014 4:20:48 AM EST> <Notice> <Stdout> <BEA-000000> <<Nov 28, 2014 4:20:48 AM EST> <Warning> <oracle.soa.adapter> <BEA-000000> <FTP Adapter MercentPollerPOC Th
e connection variable is null in postCall. This could be because of a call postCall w/o a preceeding call to preCall.>>
<Nov 28, 2014 4:21:18 AM EST> <Notice> <Stdout> <BEA-000000> <<Nov 28, 2014 4:21:18 AM EST> <Warning> <oracle.soa.adapter> <BEA-000000> <FTP Adapter MercentPollerPOC Th
e connection variable is null in postCall. This could be because of a call postCall w/o a preceeding call to preCall.>>
<Nov 28, 2014 4:21:48 AM EST> <Notice> <Stdout> <BEA-000000> <<Nov 28, 2014 4:21:48 AM EST> <Warning> <oracle.soa.adapter> <BEA-000000> <FTP Adapter MercentPollerPOC Th
e connection variable is null in postCall. This could be because of a call postCall w/o a preceeding call to preCall.>>
<Nov 28, 2014 4:22:18 AM EST> <Notice> <Stdout> <BEA-000000> <<Nov 28, 2014 4:22:18 AM EST> <Warning> <oracle.soa.adapter> <BEA-000000> <FTP Adapter MercentPollerPOC Th
e connection variable is null in postCall. This could be because of a call postCall w/o a preceeding call to preCall.>>
Any help would be appreciated. Thanks in advance.

Hello!
Can you check if this oracle metalink note 754029.1 is applicable?
Though it talks of very old version of SOA but the changes are advised to make on FTP server.
Hope it helps!
Thanks

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