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Editorial Team
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Asked: 2026-05-16T04:36:33+00:00

I’m trying to move and old JSF v1.0 application from Sun One to Jboss

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I’m trying to move and old JSF v1.0 application from Sun One to Jboss 4.3 EAP that has jsf v 1.2 jars. I’ve been able to get the application to compile and deploy but when try to run it locally it gives me a ClassNotFoundException (and rightly so) for com.sun.faces.taglib.FacesTagExtraInfo

It doesn’t exist in the jsf_impl.jar, as it did in the 1.0 versions, along with 2 other class files. I can’t stick the old v in the deploy folder for jboss (one it doesn’t work that way and jboss complains about local configuration error, since it wants to use it’s jars). I’ve done some searching but I can’t seem to find a solution.

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1 Answer

  1. Editorial Team

    That class was removed in JSF 1.2 because it became superfluous with the new view handler. If you’re getting this exception, then it means that you still have a jsf-api.jar of version 1.0/1.1 wandering somewhere in the classpath which got precedence over the version 1.2 one during classloading. But you do have a jsf-impl.jar of version 1.2 in the classpath (likely the appserver-provided one).

    Cleanup your classpath to get rid of the old 1.0 JAR’s and restart. The default paths covered by the webapp’s runtime classpath are under each Webapp/WEB-INF/lib, JDK/lib and JDK/lib/ext.

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