[jboss-jira] [JBoss JIRA] (WFLY-4117) Support nested expressions in deployment descriptors

Support nested expressions in deployment descriptors ---------------------------------------------------- Key: WFLY-4117 URL: https://issues.jboss.org/browse/WFLY-4117 Project: WildFly Issue Type: Feature Request Reporter: Brian Stansberry Assignee: Brian Stansberry Users have requested support for expressions such as: {code} ${VAULT::oracle::${me}::0} {code} where "me" is a system property. Allows externalization of the vault attribute name. This will likely require JBMETA changes as well, as the deployment level stuff is there. I want this to be a generic thing, not just a specific solution to the above example. So, something like, given a string, find the innermost expression, resolve it and then repeat until the input equals the output (i.e. there are no more expressions.)