Here:
component.xml

  | <factory name="guiSystems"  value="#{guiSystemsQuery.resultList}" />
  |     <framework:entity-query name="guiSystemsQuery" 
  |             ejbql="select s from System s"
  |             order="s.displayName asc"/>
  | 

in view:

  | <s:decorate template="layout/display.xhtml">
  |                     <ui:define name="label">Target-System</ui:define>
  |                     <h:selectOneMenu id="system" 
  |                             value="#{someList.acc.system}" required="false" 
disabled="true">
  |                                     <s:selectItems value="#{guiSystems}" 
var="s"
  |                                             label="#{s.displayName}" 
noSelectionLabel="-Select-" />
  |                                     <s:convertEntity />
  |                             </h:selectOneMenu>
  | </s:decorate>
  | 

where 'someList' is a seam component that extends EntityQuery,
in someList I have a restriction such as:

  | lower(acc.system) = #{someList.acc.system}
  | 


I have a viewfile.page.xml file that has the parameters:

  | <param name="system" value="#{someList.acc.system}"/>
  | 

When I add this parameter, it result the exception,


Many Thanks!

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