we have developed an adapter module for digital signature validation, unfortunately, it simetimes work, sometimes doesnt. Strange is, that the same adapter module works for one customer, while for another one doesn't.
We have sent through some "invalid" messages, which should have been valid at the client, where the module works and theu were flagged as valid. It seems the problem is caused by "special" spanish characters, because validation works for the messages where are only standard chars.
Any idea, what to check? Java version, system encoding?
Any help appreciated,