What means 'Stack trace not available'

Question

I have an application in produccion.
-Oas 10g (9.04)
-Jdeveloper 9.04
-Jheadstart 9.405
my new requirement is:
an upload file(ms excel) in a jsp page
and refresh the data from the html table in this jsp
...Then i modified:
*****the TablePage (jsp)
add to my form: enctype="multipart/form-data"<html:form name="O0130200_PLANESBean" action="/StartO0130200" type="oracle.jheadstart.view.struts.JhsDynaActionForm" scope="session" enctype="multipart/form-data">
*****struts-config
*****Add a new Action (customized) extends from JhsAction
struts-config:
<!--SISYGES:INIT-->
<form-property className="oracle.jheadstart.controller.struts.config.JhsFormPropertyConfig" name="O0130200_PLANESDetallePlanFile" type="org.apache.struts.upload.FormFile">
<set-property property="isPersistent" value="false"/>
<set-property property="isFileField" value="true"/>
</form-property>
<!--SISYGES:END-->
</form-bean>
<action path="O0130200_PLANESRouter" type="oracle.jheadstart.controller.struts.action.ActionRouter">
<set-property property="defaultForward" value="initial"/>
<forward name="initial" path="GetO0130200_PLANESSet"/>
<forward name="browse" path="BrowseO0130200_PLANESSet"/>
<forward name="insert" path="GetDefaultO0130200_PLANES"/>
<forward name="save" path="SaveO0130200_PLANES"/>
<forward name="delete" path="DeleteO0130200_PLANES"/>
<forward name="groupPage" path="/WEB-INF/page/O0130200_PLANESPage.jsp"/>
<!--SISYGES:INIT-->
<forward name="uploadDetallePlan" path="UploadDetallePlan"/>
<!--SISYGES:END-->
</action>
<!--SISYGES:INIT-->
<action
path="UploadDetallePlan"
type="com.sisyges.o0130200.model.struts.action.UploadDetallePlanAction"
name="O0130200_PLANESBean"
scope="session">
<!-- select key of result DataObject in SessionData -->
<set-property property="dataObjectName" value="O0130200_PLANES"/>
<!-- name of dataObject interface -->
<set-property property="dataObjectInterface" value="com.sisyges.o0130200.model.Planes"/>
<set-property property="persistActionParameterName" value="save"/>
<!-- Commit transaction? -->
<set-property property="doCommit" value="true"/>
<forward name="success" path="BrowseO0130200_PLANESSet"/>
<forward name="userError" path="/WEB-INF/page/O0130200_PLANESPage.jsp"/>
</action>
<!--SISYGES:END-->
Made these changes my application only runs correctly some times without showing some error message
....But in jdeveloper, the embedded oc4j show :
Stack trace not available after execute the action...
this action execute correctly....(I print in the screen with 'System.out.println()' step by step ...and this fail when the execute method finalizes)
thanks

Answer 1

Rigoberto,
This sounds like a OC4J/J2EE issue that is not related to JHeadstart. To simplify the test case, you could create a simple drag-and-drop ADF application without JHeadstart and see if the same problem occurs there. Can you please log a TAR at MetaLink ( http://metalink.oracle.com/ ), or ask this question at the OC4J/J2EE forum at OC4J ? Thanks.
Sandra Muller
JHeadstart Team
Oracle Consulting