Xquery migration from OSB 11g to OSB 12c not working

Hi,

As part of code migration from OSB 11g version to OSB 12c version , we are getting some XQuery compilation issues as mentioned below .

First issue :

Error:{http://www.w3.org/2005/xqt-errors}XPST0003 [{http://xmlns.oracle.com/xdk/xquery/error}XPST0003c]

Details: Syntax error. "group" is unexpected

Xquery line used :

for $input-line-item in $blockingCriteriaRows 

     group $input-line-item as $group by 

     $input-line-item//WO_ID as $woId , 

     $input-line-item//OM_STATUS as $status, 

     $input-line-item//EXECUTION_STATUS as $execution_status

Second issue :

Error:{http://www.w3.org/2005/xqt-errors}XPTY0004 [{http://xmlns.oracle.com/xdk/xquery/error}XPTY0004e]

Details: Invalid static type{http://www.w3.org/2001/XMLSchema}string