[jboss-jira] [JBoss JIRA] (WFLY-7511) Undertow 'session-id-length' not working properly

Undertow 'session-id-length' not working properly ------------------------------------------------- Key: WFLY-7511 URL: https://issues.jboss.org/browse/WFLY-7511 Project: WildFly Issue Type: Bug Components: Web (Undertow) Reporter: Stuart Douglas Assignee: Stuart Douglas Priority: Minor Attribute {{session-id-length}} of servlet-container: {code} /subsystem=undertow/servlet-container=default:read-resource-description[session-id-length] {code} does not work exactly the way its description says: {code} "description" => "The length of the generated session ID. Longer session ID's are more secure.", {code} When I change it's value to {{X}}, actual result value of servlet session ID is {{((X + 2) / 3) * 4}}, [see this line of code|https://github.com/undertow-io/undertow/blob/master/core/src/main/ja...]. I am not sure what is the reason of this (probably to get some close greater number that can be divided by 4?). Please there should be either: - changed code so result session ID has length that corresponds to what user set - or update attribute description to explain user properly what is actually set Note: [here is the Jira for which this feature has been introduced into Wildfly|https://issues.jboss.org/browse/WFLY-3642].