= Remove Unsupported Subsystems

All subsystems, and related extensions, which are not supported by {server-target-productName}, are automatically removed from a migrated configuration.

The following {server-source-productName} subsystems are not supported by {server-target-productName}:

|===
|Subsystem Name |Configuration Namespace        |Extension Module

|cmp            |urn:jboss:domain:cmp:*         |org.jboss.as.cmp
|configadmin    |urn:jboss:domain:configadmin:* |org.jboss.as.configadmin
|jaxr           |urn:jboss:domain:jaxr:*        |org.jboss.as.jaxr
|osgi           |urn:jboss:domain:osgi:*        |org.jboss.as.osgi
|threads        |urn:jboss:domain:threads:*     |org.jboss.as.threads
|===

NOTE: A subsystem installed in {server-source-productName} by the user, is also considered as unsupported by {server-target-productName}.

The console logs the configuration namespaces, and extension modules, of unsupported subsystems removed from the server configuration being migrated:

[source,options="nowrap"]
----
INFO  Unsupported extensions removed: [org.jboss.as.jaxr, org.jboss.as.threads, org.jboss.as.cmp]
INFO  Unsupported subsystems removed: [urn:jboss:domain:jaxr:1.1, urn:jboss:domain:cmp:1.1, urn:jboss:domain:threads:1.1]
----