[jbosstools-issues] [JBoss JIRA] Commented: (JBIDE-4512) Seam Validator raises "property cannot be resolved" warnings when single value is used instead of List

Seam Validator raises "property cannot be resolved" warnings when single value is used instead of List ------------------------------------------------------------------------------------------------------ Key: JBIDE-4512 URL: https://jira.jboss.org/jira/browse/JBIDE-4512 Project: Tools (JBoss Tools) Issue Type: Bug Components: jsp/jsf/xml source editing Affects Versions: 3.0.0.GA Environment: JBossTools-ALL-win32-3.0.1.GA-R200905070146-H18, Seam 2.1.1.GA Reporter: Julien Kronegg Assignee: Alexey Kazakov Fix For: 3.1.0.M2 Attachments: edit.xhtml.ftl, EntityHome.java.ftl, MyBean.java, singleValuedVarCannotBeResolved.png, view.xhtml.ftl Jboss Tools does not recognize correctly the "var" property in list iterators (e.g. rich:dataTable, h:dataTable) if the "value" property is a single value (but works if the "value" property is a List. This problem occurs for XHTML pages generated by seam-gen where the value is "#{myEntityHome.instance.singleValue}" (see https://jira.jboss.org/jira/browse/JBIDE-4048). Effects: 1. add a lot of warnings "variableName cannot be resolved" that should be there 2. makes "Seam Validator" task to be very slow when there is a lot of pages (because the Seam Validator task is run on each XHTML file with at least one unresolved EL, see https://jira.jboss.org/jira/browse/JBIDE-3336) Expected: As the rich:dataTable displays one row when the "value" property is a single value and not a list, Jboss Tools is expected to recognize list AND single value. How to reproduce: EXECUTE: Create seam project. EXECUTE: Create MyBean component (see attached java file) EXECUTE: Open home.xhtml EXECUTE: Add: <h:dataTable var="myVar" value="#{myBean.values}"> <h:column><h:outputText value="#{myVar.myProperty}"/></h:column> </h:dataTable> <h:dataTable var="myVar" value="#{myBean.singleValue}"> <h:column><h:outputText value="#{myVar.myProperty}"/></h:column> </h:dataTable> <h:dataTable var="myVar" value="#{myBean.singleValueAsList}"> <h:column><h:outputText value="#{myVar.myProperty}"/></h:column> </h:dataTable> ASSERT: no warning "myVar cannot be resolved" appear Workaround: Use a "value" property as List and not as single value (maybe wrapping the single value to a List should do the trick).