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https://issues.apache.org/jira/browse/OFBIZ-5047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13481989#comment-13481989
 ] 

Paul Foxworthy commented on OFBIZ-5047:
---------------------------------------

Hi Chung,

The trunk version of OFBiz was modified to improve stack trace information from 
Groovy on 16 October.

If you download the latest trunk and try again, I expect you will get more 
information about the problem.

The change is a very simple one. To see what changed, look at

https://fisheye6.atlassian.com/changelog/ofbiz?cs=1398679

If you prefer not to download all of OFBiz, you could make the same change by 
hand or obtain the change in patch form from

https://fisheye6.atlassian.com/rdiff/ofbiz?csid=1398679&u&N

Cheers

Paul Foxworthy
                
> Import/export
> -------------
>
>                 Key: OFBIZ-5047
>                 URL: https://issues.apache.org/jira/browse/OFBIZ-5047
>             Project: OFBiz
>          Issue Type: Bug
>          Components: framework
>    Affects Versions: Release Branch 12.04
>         Environment: ubuntu 12_4, ofBIZ_12_4
>            Reporter: sergio kosik
>            Assignee: Jacques Le Roux
>         Attachments: ofbiz_result_screen.png, start_screen.png
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> I just check out code from SVN,
> - invoked <ant load-demo> command and  
> - just tried invoke Import/export functionality from backoffice page
> The Faield :ERROR MESSAGE: was result:
> https://localhost:8443/webtools/control/xmldsdump
> org.ofbiz.widget.screen.ScreenRenderException: Error rendering screen 
> [component://webtools/widget/EntityScreens.xml#xmldsdump]: 
> java.lang.IllegalArgumentException: Error running script at location 
> [component://webtools/webapp/webtools/WEB-INF/actions/entity/XmlDsDump.groovy]:
>  javax.script.ScriptException: 
> org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast 
> object '[null]' with class 'java.util.ArrayList' to class 'java.util.TreeSet' 
> due to: java.lang.NullPointerException (Error running script at location 
> [component://webtools/webapp/webtools/WEB-INF/actions/entity/XmlDsDump.groovy]:
>  javax.script.ScriptException: 
> org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast 
> object '[null]' with class 'java.util.ArrayList' to class 'java.util.TreeSet' 
> due to: java.lang.NullPointerException)
> ---- stack trace 
> ---------------------------------------------------------------
> java.lang.IllegalArgumentException: Error running script at location 
> [component://webtools/webapp/webtools/WEB-INF/actions/entity/XmlDsDump.groovy]:
>  javax.script.ScriptException: 
> org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast 
> object '[null]' with class 'java.util.ArrayList' to class 'java.util.TreeSet' 
> due to: java.lang.NullPointerException
> org.ofbiz.base.util.ScriptUtil.executeScript(ScriptUtil.java:348)
> org.ofbiz.base.util.ScriptUtil.executeScript(ScriptUtil.java:324)
> org.ofbiz.widget.ModelWidgetAction$Script.runAction(ModelWidgetAction.java:416)
> org.ofbiz.widget.ModelWidgetAction.runSubActions(ModelWidgetAction.java:116)
> org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:184)
> org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:396)
> org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:135)
> org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:97)
> org.ofbiz.widget.screen.MacroScreenViewHandler.render(MacroScreenViewHandler.java:104)
> org.ofbiz.webapp.control.RequestHandler.renderView(RequestHandler.java:864)
> org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:581)
> org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:224)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
> org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:337)
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
> org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
> org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
> org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> java.lang.Thread.run(Thread.java:722)
> ----------------------------------------------------------------------------
> I will check it for 11_x release soon

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