There is NoSuchProviderException when we want to create our custom credential store.

How to reproduce

1. Create module
   Set your own path to customcredstoreprovider.jar downloaded from attachment

   module add --name=org.jboss.customcredstore --resources=/tmp/customcredstoreprovider.jar --dependencies=org.wildfly.security.elytron,org.wildfly.extension.elytron --slot=main
   

2. Create provider loader

   /subsystem=elytron/provider-loader=cust001:add(providers=[{class-names=[org.jboss.as.test.integration.security.credential.store.CustomElytronProvider],module=org.jboss.customcredstore,load-services=true}],register=true)
   

3. Create credential store

   /subsystem=elytron/credential-store=cs0123456:add(uri="cr-store://test/customcredCS123.jceks?create.storage=true", provider=org.jboss.as.test.integration.security.credential.store.CustomElytronProvider, provider-loader=cust001, credential-reference={clear-text=pass123})
   

And the result is:

{
    "outcome" => "failed",
    "failure-description" => {
        "WFLYCTL0080: Failed services" => {"org.wildfly.security.credential-store.cs0123456" => "org.jboss.msc.service.StartException in service org.wildfly.security.credential-store.cs0123456: WFLYELY00004: Unable to start the service.
    Caused by: java.security.NoSuchProviderException: org.jboss.as.test.integration.security.credential.store.CustomElytronProvider"},
        "WFLYCTL0412: Required services that are not installed:" => ["org.wildfly.security.credential-store.cs0123456"],
        "WFLYCTL0180: Services with missing/unavailable dependencies" => undefined
    },
    "rolled-back" => true
}