Unknown component error when using http://xmlns.jcp.org/jsf/composite instead of http://java.sun.com/jsf/composite ------------------------------------------------------------------------------------------------------------------ Key: JBIDE-22886 URL: https://issues.jboss.org/browse/JBIDE-22886 Project: Tools (JBoss Tools) Issue Type: Bug Components: jsf, jsp/jsf/xml/html-source-editing Affects Versions: 4.3.0.Final Environment: JBoss Developer Studio 9.0.1.GA. Windows 10. Java 8. Reporter: Karl Nicholas Assignee: Viacheslav Kabanovich Fix For: 4.5.x Attachments: screenshot-1.png, screenshot-2.png 1. Create a JSF 2.2 KickStart project with WildFly target server. 2. Create a composite component "mycomp.xhtml" 4. Import composite component with http://xmlns.jcp.org/jsf/composite/mycomp"> 5. FAILURE: Unknown composite component "mycomp" in validation. 6. change to Import composite component with http://java.sun.com/jsf/composite/mycomp"> 7. No validation, unknown composite component warning.