[jboss-user] [JBoss Seam] - optimistic locking - exception handling

[pista666]

hi folks,

i'm trying to use optimistic locking with seam, everything works fine 
except very last thing, when i'm trying to save the record (that was changed by other user) i'll get page that user can't really understand (server internal error).

In jboss log i see exception(explainig problem), but at the end it comes to java.lang.NoClassDefFoundError, see log:

11:30:50,734 ERROR [AbstractFlushingEventListener] Could not synchronize database state with session
org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [c
om.arnie.panta.PrProdukt#21]
        at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1699)
....
11:30:50,748 ERROR [ExceptionFilter] uncaught exception
javax.servlet.ServletException: Error calling action method of component with id prProdukt:update
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:152)
...
11:30:50,748 ERROR [ExceptionFilter] exception root cause
javax.faces.FacesException: Error calling action method of component with id prProdukt:update
        at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:74)
...
Caused by: javax.faces.el.EvaluationException: /PrProduktEdit.xhtml @110,61 action="#{prProduktHome.update}": javax.persistence.Optimis
ticLockException
        at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:73)
....
Caused by: javax.persistence.OptimisticLockException
        at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:604)
...
Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was inc
orrect): [com.arnie.panta.PrProdukt#21]
        at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1699)
....
11:30:50,753 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
java.lang.NoClassDefFoundError: com/sun/facelets/el/LegacyELContext
        at org.jboss.seam.web.ExceptionFilter.createFacesContext(ExceptionFilter.java:122)
...

please give me advice how to handle this exception and show up friendly message to user on formular page.

thanks

pista


page i get:
---------------

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Filter execution threw an exception
	org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:75)
	org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:213)
	org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

java.lang.NoClassDefFoundError: com/sun/facelets/el/LegacyELContext
	org.jboss.seam.web.ExceptionFilter.createFacesContext(ExceptionFilter.java:122)
	org.jboss.seam.web.ExceptionFilter.endWebRequestAfterException(ExceptionFilter.java:86)
	org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:73)
	org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
	org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
	org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
	org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:79)
	org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
	org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:84)
	org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:75)
	org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:213)
	org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.20 logs.

View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4024602#4024602

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4024602