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unable to map the portal user with back end user through web dynpro coding

Hi All,

I 've a portal user which is mapped to back end user by system in the portal.

i 'm able to get the portal user from web dynpro application.

But unable to get the mapped back end user

this is my code

String systemalias = "SAP_CRM_PROD";

Map mapattr = new HashMap();

// IPrincipal principal = (IPrincipal) request.getUser();

// get user user mapping information

IUserMappingData userMapping =

//(IUserMappingData) UMFactory.getUserMapping().getUserMappingData(systemalias, principal, mapattr);

(IUserMappingData) UMFactory.getUserMapping().getUserMappingData(systemalias,principal,mapattr );

// For testing purposes only

//mappingData = userMapping;

HashMap map = new HashMap();


mappedPassword = map.get(UMAP_KEY_PASSWORD).toString(); //String "user"

mappedUserId = map.get(UMAP_KEY_USER).toString(); /

following is the error reported .

The project was not built since its classpath is incomplete. Cannot find the class file for javax.xml.soap.SOAPMessage. Fix the classpath then try rebuilding this project.

please help.

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