OIM 12c No such property: context for class

Hi,

Authoritative trusted Application Transformation script Error.

We have integrated a database table using AOB (Authoritative) trusted application. When I am writing  goorvy scripts for transformation its compiled successfully. when runny trusted reconciliation job its showing an error "No such property: context for class" mentioned below. I have written scripts also mentioned below. Please help me how can I resolve the issue or suggest me if I am missing some thing in script or any other configuration.

import com.thortech.xl.dataobj.util.XLDatabase;

import oracle.iam.connectors.icfcommon.service.ConfigurationService;

import oracle.iam.connectors.icfcommon.service.ServiceFactory;

def getBeneficiaryAttrFromContext(attrName) {