Retrofitting SEAM to existing JSF project

[tedder]

Hi,

I am trying to retrofit SEAM into an existing project and haven't been able to find any description how to do so. The existing project is

JSF + facelets + hibernate+ maven

deployed on Tomcat 6.

I have tried copying the JPA example (adding SEAM filter & listener to web.xml, jar files, seam.properties, components.xml) but can only seem to generate the following error

java.lang.NullPointerException
at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166)
at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53)

Is there some documentation on how to add SEAM to an existing project?

Thanks

[tedder]

should have mentioned earlier, also using RichFaces & Ajax4JSF in the legacy application. The full stack trace I see is

java.lang.NullPointerException
org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166)
org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53)
javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64)
com.sun.faces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:72)
org.ajax4jsf.context.AjaxContext.getCurrentInstance(AjaxContext.java:101)
org.ajax4jsf.application.AjaxViewHandler.createView(AjaxViewHandler.java:83)
com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:201)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
edu.mit.broad.util.HibernateSessionRequestFilter.doFilter(HibernateSessionRequestFilter.java:30)
edu.mit.broad.security.AuthenticationFilter.doFilter(AuthenticationFilter.java:59)

note

[nickarls]

I would consider starting a fresh project using the Eclipse JBoss Tools plugins and copy&paste the code into that...

[shane.bryzak]

It looks like Seam isn't being initialized. I suggest that you use a debugger to check that SeamListener.contextInitialized() is being called.