java.lang.LinkageError

[peterrn]

Hi

I'm using JBoss 4.0.5, myfaces 1.1.4 with richfaces 3.1.2.
After implementing the tutorial Simple Ajax Echo Project from the JBoss RichFaces Documentation i get following exception:

javax.servlet.ServletException: Servlet execution threw an exception
 org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
 org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
 org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)


root cause

java.lang.LinkageError: loader constraints violated when linking org/apache/commons/collections/Transformer class
 org.ajax4jsf.application.ComponentsLoaderImpl.<init>(ComponentsLoaderImpl.java:27)
 org.ajax4jsf.application.AjaxStateManager.<init>(AjaxStateManager.java:90)
 org.ajax4jsf.event.InitPhaseListener.beforePhase(InitPhaseListener.java:87)
 com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:192)
 com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
 javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
 org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
 org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
 org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

any idea how to solve this?

[viggo.navarsete]

Which jdk version did you compile your tutorial with? And which jdk version is the jboss using? I think it might be related to differences in jdk version...somehow..:)

[peterrn]

I have compiled it with 1.5.0 and the jboss uses 1.5.0 too.

[viggo.navarsete]

hmm, strange. I had a similar strange error today, where I had built my war-file using Maven. In my pom.xml I had told maven to use java 6, but my Jboss was running java 5.