When using "add inclusive prefixes" and EXC C14N - signature cannot be validated

Security implemented using WSS4J securement/validation action approach. We are trying to sign the body.

The provider is a JAX-WS service running on WebSphere JAX-WS stack. Custom handler uses WSS4j to validate security.

The consumer is a WebSphere JAX-WS dispatch client – also attaching custom security handler.

Signature can be validated on the provider side when EXC C14N canonicalization is specified with BST compliance flag relaxed. That is because when we chose to add “InclusiveNamespaces” “PrefixList” on the consumer side, verification fails. When the same test is done with the SOAP UI – signature verifies Ok – so I am blaming the consumer – the signing process - not verification process.

I am attaching a log file which shows verification failure when the InclusiveNamespaces option is used. If not for this option – this verification would’ve been a success.