If you ever face issues like
BINDING.JCA-12563 Exception occurred when binding was invoked. Exception occurred during invocation of JCA binding: “JCA Binding execute of Reference operation ‘Write’ failed due to: Input Source null. Input Source null. Input Source is null. “. The invoked JCA adapter raised a resource exception. Please examine the above error message carefully to determine a resolution.
then there is a problem in the xml transformation in the mediator to write the file
Resolution:
Look if the transformation information in the mediator is proper.
Check if the transformation exist in the first place.
They point the finger at me.. again! 