Hi all,
with "SWIFT message syntax validation" I guess you are speaking about getting the FIN syntax right?
If so, I have just posted an answer to another SWIFT related question on StackOverflow.
I have copy and pasted my response below again for your convenience (from here: java-swift-library):
SWIFT is releasing a "Standards Developer Kit" which includes an "MT/XML Schema Library".
From the doc: "The MT/XML Schema Library is a complete set of XML schema definitions for MT messages, and software which shows how to convert messages from an MT format to an MT XML representation and back. This approach allows XML integration between applications while the MT (FIN) format will continue to be transported over the SWIFT network."
Java source code will also be made available, again from the doc: "Working sample Java source code that converts a message in MT format to an XML instance and from an XML instance to a message in MT format."
See: https://www.swiftcommunity.net/communities/download.cfm?id=4798
This can be a great aid in dealing with FIN messages in XML syntax.
So, using the "Standards Developer Kit" you do not have to worry anymore about getting the FIN syntax right.
Hope it is useful for you,
Stijn.