Migration from RAP 3.x to RAP 4.0

[dwivedi17]

Hello,

We are migrating our RAP 3.x application to RAP 4.x on JBoss EAP 8.0
As of now, we are getting deployment issue related to equinox and BridgeServlet.

Is there any migration document available to help us with this migration?

[ifurnadjiev]

Hi,
in RAP 4.0 we have several new bundles:

• org.eclipse.rap.http.servlet
• org.eclipse.rap.http.registry
• org.eclipse.rap.http.jetty
• org.eclipse.rap.http.servletbridge
• org.eclipse.rap.servletbridge
  Please use these bundles and exclude the old Equinox (EE8) bundles.

[dwivedi17]

Hi @ifurnadjiev

Thanks for your response.
We are already building our application in RAP v4.1, but during deployment on JBOSS EAP 8.0, we are getting- "{"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"eP_War-3.5.0.war\".undertow-deployment.UndertowDeploymentInfoService" => "Failed to start service
Caused by: java.lang.NoClassDefFoundError: Failed to link org/eclipse/equinox/servletbridge/BridgeServlet (Module \"deployment.eP_War-3.5.0.war\" from Service Module Loader): javax/servlet/http/HttpServlet"}}"

Aren't these new bundles mentioned by you supposed to be included with version 4.1, as build of the application is also successful. Please let me know if we need to take some additional steps to include these bundles somewhere else.
Thanks for your help.

[ifurnadjiev]

The exception shows that you are still using the old Equinox EE8 bundles -> org/eclipse/equinox/servletbridge/BridgeServlet and not the one mentioned above.
For a WAR build example you can check our repo at https://github.com/eclipse-rap/org.eclipse.rap/tree/main/releng/org.eclipse.rap.examples.build