JavaServer Faces (JSF) 1.1/1.2 compatibility

This rule flags the following references in the faces-config.xml file:

• DTD name equal to http://java.sun.com/dtd/web-facesconfig_1_1.dtd
• <faces-config version="1.2"/>

Liberty supports JavaServer Faces (JSF) 2.0 and later. JSF 2.x is backwards compatible with JSF 1.2 and 1.1. However, older JSF applications might still encounter compatibility issues when running on Liberty.

If your application experiences such compatibility issues, you can include your own JSF 1.1/1.2 implementation with the application. For example, you can place the JSF implementation JAR files in the WEB-INF/lib directory. You must also remove the jsf-2.0 feature from the server configuration.

If you do not have the JSF 1.1/1.2 libraries, you can download the JSF implementation version that corresponds to the JSF version that is specified in your faces-config.xml.

For more information, see the following resources:

• Migrating from JSF 1.2 to JSF 2.0
• Apache MyFaces
• Configuring third-party JavaServer Faces 2.2 implementations