[id='using-jboss-marshaller_{context}']
= Using JBoss Marshalling
JBoss Marshalling is a serialization-based marshalling library and was the default marshaller in previous {brandname} versions but is now deprecated.

[NOTE]
====
JBoss Marshalling is deprecated.
You should use it only as a temporary measure while migrating your applications from an older version of {brandname}.
====

.Procedure

. Add the `infinispan-jboss-marshalling` dependency to your classpath.
. Configure {brandname} to use the `GenericJBossMarshaller`.
. Add your Java classes to the deserialization allowlist.

.Declarative
[source,xml,options="nowrap",subs=attributes+,role="primary"]
----
include::config_examples/jboss_user_marshaller.xml[]
----

.Programmatic
[source,java,options="nowrap",subs=attributes+,role="secondary"]
----
include::code_examples/JBossUserMarshaller.java[]
----

[role="_additional-resources"]
.Additional resources
* link:{javadocroot}/org/infinispan/commons/marshall/AdvancedExternalizer.html[AdvancedExternalizer]
