i tried with new process

 i want to get the simple text existed in my system(local)

i used synchronous process, FTP adapter, invoke and transform activity.

the output is

<messages>
- <input>
- <Invoke_1_Read_InputVariable>
- <part xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="abcd">
<abcd xmlns="http://TargetNamespace.com/soa"/>

</part>
</Invoke_1_Read_InputVariable>
</input>
- <fault>
- <bindingFault xmlns="http://schemas.oracle.com/bpel/extension">
- <part name="summary">
<summary>

file:/G:/product/10.1.3.1/OracleAS_1/bpel/domains/default/tmp/.bpel_fileadapter1_1.0_a86b5179b9e4559ec04196814608eb86.tmp/soa.wsdl [ Read_ptt::Read(abcd) ] - WSIF JCA Execute of operation 'Read' failed due to: Could not instantiate InteractionSpec oracle.tip.adapter.file.inbound.FileActivationSpec due to: oracle.tip.adapter.file.inbound.FileActivationSpec; nested exception is:
 java.lang.ClassCastException: oracle.tip.adapter.file.inbound.FileActivationSpec; nested exception is:
 org.collaxa.thirdparty.apache.wsif.WSIFException: Could not instantiate InteractionSpec oracle.tip.adapter.file.inbound.FileActivationSpec due to: oracle.tip.adapter.file.inbound.FileActivationSpec; nested exception is:
 java.lang.ClassCastException: oracle.tip.adapter.file.inbound.FileActivationSpec

</summary>

</part>
- <part name="detail">
<detail>

org.collaxa.thirdparty.apache.wsif.WSIFException: Could not instantiate InteractionSpec oracle.tip.adapter.file.inbound.FileActivationSpec due to: oracle.tip.adapter.file.inbound.FileActivationSpec; nested exception is:
 java.lang.ClassCastException: oracle.tip.adapter.file.inbound.FileActivationSpec

</detail>

</part>
</bindingFault>
</fault>
</messages>