There are two different error messages for adding duplicate record to CS with same command. ------------------------------------------------------------------------------------------- Key: WFLY-8005 URL: https://issues.jboss.org/browse/WFLY-8005 Project: WildFly Issue Type: Bug Components: Security Reporter: Hynek Švábek Assignee: Peter Skopek There are two different error messages for adding duplicate record to CS with same command. *How to reproduce* {code} /subsystem=elytron/credential-store=cs007:add(uri="cr-store://test/customcredCS007.jceks?create.storage=true", credential-reference={clear-text=pass123}) {code} {code} /subsystem=elytron/credential-store=cs007/alias=alias001:add(secret-value=secret) {code} And now we try add there same alias with exactly same name and with name in uppercase {code} /subsystem=elytron/credential-store=cs007/alias=alias001:add(secret-value=secret) { "outcome" => "failed", "failure-description" => "WFLYCTL0212: Duplicate resource [ (\"subsystem\" => \"elytron\"), (\"credential-store\" => \"cs007\"), (\"alias\" => \"alias001\") ]", "rolled-back" => true } {code} {code} /subsystem=elytron/credential-store=cs007/alias=ALIAS001:add(secret-value=secret) { "outcome" => "failed", "failure-description" => "WFLYELY00913: Credential alias \"alias001\" of credential type \"org.wildfly.security.credential.PasswordCredential\" already exists in the store", "rolled-back" => true } {code} You can see different error message.