Christian Carlow created OFBIZ-5457:
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             Summary: 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
            Priority: Minor


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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