[jboss-jira] [JBoss JIRA] (WFCORE-1717) ExtensionXml incorrectly handles duplicate module names

ExtensionXml incorrectly handles duplicate module names ------------------------------------------------------- Key: WFCORE-1717 URL: https://issues.jboss.org/browse/WFCORE-1717 Project: WildFly Core Issue Type: Bug Components: Domain Management Affects Versions: 2.2.0.Final, 3.0.0.Alpha5 Reporter: Toby Crawley Assignee: Brian Stansberry Fix For: 3.0.0.Beta1 Toby Crawley reports: - adding a duplicate extension under server > extensions causes an IllegalStateException that occurs when trying to generate the XMLStreamException (https://gist.github.com/tobias/59d155afe0c88e268b83cb75734353eb) The problem happens because before the parser calls the invalidAttributeValue method to throw an exception, it has already consumed the element, preventing invalidAttributeValue working properly. This should really be a custom exception that more clearly explains the problem, which is that the 'module' attribute value must be unique across the extension elements.