Credentials do not propogate from BusinessCentral to external Kie-Server

SubjectCredentialsProvider's match() looks at the implementation class name. If it ends with ending with "*BasicAuthorizationPrincipal", it will propogate the authetnication to the kie-server.

Unfortunately, on Wildfly 14, the implementation class is SimplePrincipal or something like that, not as class that ends in the words: BasicAuthorizationPrincipal. Therefore, no credentials are returned and the error is displayed to the user.

I have proposed a small patch to use the admin credentials instead:

• https://github.com/kiegroup/jbpm-wb/pull/1402
• https://github.com/kiegroup/droolsjbpm-integration/pull/1935