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https://issues.apache.org/jira/browse/OFBIZ-5457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jacques Le Roux closed OFBIZ-5457.
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> Groovy error when initiating sales order creation for unkown partyId
> --------------------------------------------------------------------
>
>                 Key: OFBIZ-5457
>                 URL: https://issues.apache.org/jira/browse/OFBIZ-5457
>             Project: OFBiz
>          Issue Type: Bug
>            Reporter: Christian Carlow
>            Assignee: Jacques Le Roux
>            Priority: Minor
>             Fix For: SVN trunk, Release Branch 12.04, Release Branch 13.07
>
>         Attachments: OFBIZ-5457.patch
>
>
> This error is generated when an unknown partyId is entered in the Customer 
> field of the sales order entry form:
> ERROR rendering error page [/error/error.jsp], but here is the error text: 
> org.ofbiz.widget.screen.ScreenRenderException: Error rendering screen 
> [component://order/widget/ordermgr/OrderEntryScreens.xml#CheckInits]: 
> java.lang.IllegalArgumentException: Error running script at location 
> [component://order/webapp/ordermgr/WEB-INF/actions/entry/CheckInits.groovy]: 
> groovy.lang.GroovyRuntimeException: Ambiguous method overloading for method 
> org.ofbiz.entity.util.EntityUtil#getFirst. Cannot resolve which method to 
> invoke for [null] due to overlapping prototypes between: [interface 
> java.util.Collection] [interface java.util.List] (Error running script at 
> location 
> [component://order/webapp/ordermgr/WEB-INF/actions/entry/CheckInits.groovy]: 
> groovy.lang.GroovyRuntimeException: Ambiguous method overloading for method 
> org.ofbiz.entity.util.EntityUtil#getFirst. Cannot resolve which method to 
> invoke for [null] due to overlapping prototypes between: [interface 
> java.util.Collection] [interface java.util.List])
> To resolve the issue, lines 60-63 of 
> /ofbiz-svn-trunk-local/applications/order/webapp/ordermgr/WEB-INF/actions/entry/CheckInits.groovy
>  should be wrapped in an IF block checking for the existence of the product 
> variable previously assigned.



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