Chapter 3. Unsupported features and deprecated features

Support for some technologies is removed due to the high maintenance cost, low community interest, and better alternative solutions. The following features are not supported in JBoss EAP XP 4.0.0:

Platforms and features

Oracle Solaris

JBoss EAP deprecated the following platforms in version 7.1. These platforms are not tested in JBoss EAP 7.4.

JBoss EAP 7.4 does not include the WildFly SSL natives for these platforms. As a result, SSL operations in Oracle Solaris platforms might be slower than they were on previous versions of JBoss EAP.

Java Development Kits

Since JBoss EAP XP 4.0.0, Java Development Kit 8 (JDK 8) is now unsupported.

RESTEasy parameters

RESTEasy provides a Servlet 3.0 ServletContainerInitializer integration interface that performs an automatic scan of resources and providers for a servlet. Containers can use this integration interface to start an application. Therefore, use of the following RESTEasy parameters is no longer supported:

Red Hat JBoss Operations Network

Using Red Hat JBoss Operations Network (JON) for JBoss EAP management is deprecated since JBoss EAP version 7.2. For JBoss EAP 7.4, support for Red Hat JON for JBoss EAP management is deprecated.

MS SQL Server 2017

MS SQL Server 2017 is not supported in JBoss EAP 7.4.

For a complete list of unsupported features in JBoss EAP 7.4, see the Unsupported features section in JBoss EAP 7.4 Release Notes.

Some features have been deprecated with this release. This means that no enhancements are made to these features, and they might be removed in the future, usually the next major release.

Red Hat continues to provide full support and bug fixes under our standard support terms and conditions. For more information about the Red Hat support policy for JBoss EAP XP, see the Red Hat JBoss Enterprise Application Platform expansion pack life cycle and support policies located on the Red Hat Customer Portal.

Keycloak OIDC client adapter

The keycloak-client-oidc layer is deprecated and has been replaced with the new elytron-oidc-client subsystem.

MicroProfile

Galleon layers

The jms-activemq decorator layer is deprecated, and this layer has been replaced with the messaging-activemq layer.

Operating systems

Databases and database connectors

Server Side JavaScript

JBoss EAP Server Side JavaScript support, which was provided as a Technology Preview functionality, is deprecated.

Lightweight Directory Access Protocol (LDAP) servers

Spring BOM

The following Spring BOM that is located in the Red Hat Maven repository is now deprecated:

Although Red Hat tests that Spring applications run on JBoss EAP XP 4.0.0, you must use the latest version of the Spring Framework and its BOMs (for example, x.y.z.RELEASE) for developing your applications on JBoss EAP XP 4.0.0.

For more information about versions of the Spring Framework, see Spring Framework Versions on GitHub.

Java Development Kits

JBoss EAP OpenShift templates

JBoss EAP templates for OpenShift are deprecated.

.json templates

The eap-xp2-third-party-db-s2i.json template is deprecated and removed in JBoss EAP XP 4.0.0.

The eap74-beta-starter-s2i.json and eap74-beta-third-party-db-s2i.json templates are deprecated and are removed in JBoss EAP 7.4.0.

Legacy security subsystem

The org.jboss.as.security extension and the legacy security subsystem it supports are now deprecated. Migrate your security implementations from the security subsystem to the elytron subsystem.

PicketLink

The org.wildfly.extension.picketlink extension, and the picketlink-federation and picketlink-identity-management subsystems this extension supports, are now deprecated. Migrate your single sign-on implementation to Red Hat Single Sign-On.

PicketBox-based security vault

PicketBox-based security vault, both through the legacy security subsystem and the core-service=vault kernel management resources is deprecated.

Managed domain support for previous versions of JBoss EAP

Support for hosts running JBoss EAP 7.3 and earlier versions in a JBoss EAP 7.4 managed domain is deprecated. Migrate the hosts in your managed domains to JBoss EAP 7.4.

Server configuration files using namespaces from JBoss EAP 7.3 and earlier

Using server configuration files (standalone.xml, host.xml, and domain.xml) that include namespaces from JBoss EAP 7.3 and earlier is deprecated in this release. Update your server configuration files to use JBoss EAP 7.4 namespaces.

Agroal subsystem

The Agroal subsystem is deprecated.

application-security-domain resources

The application-security-domain resources in ejb3 and undertow subsystems are deprecated.

Resources in the clustering subsystems

The following resources in the clustering subsystems are deprecated:

Codehaus Jackson

The Codehaus Jackson 1.x module, which is currently unsupported, is deprecated in JBoss EAP 7.4.

SCRAM mechanisms

The following SCRAM mechanisms and their channel-binding variants are deprecated:

Hibernate ORM 5.1

The Hibernate ORM 5.1 native API bytecode transformer has always been deprecated since it was originally introduced.

HornetQ client

The HornetQ client module is deprecated.

For a complete list of functionalities deprecated in JBoss EAP 7.4, see the Deprecated features section in JBoss EAP 7.4 Release Notes.

Legacy patching for bootable jar

The legacy patching feature for bootable jar is deprecated in JBoss EAP XP 4.0.0.