How to get work item type attribute value?

Hi,

I am using the below function to retrieve work item type attribute value.

But it doen't return any value.

public static String getWorkitemTypeFieldValue(IWorkItem workItem,String fCustomStringAttributeID)
{

ITeamRepository repository = RepositoryManager.getInstance().getCurrentRepository();

IWorkItemClient workItemClient = (IWorkItemClient) repository.getClientLibrary(IWorkItemClient.class);

IAuditableCommon iac = workItemClient.getAuditableCommon();

IProgressMonitor monitor = new NullProgressMonitor();

IProjectArea projectArea = null;
try {
projectArea = getReportOneProjectArea();
} catch (TeamRepositoryException e2) {
e2.printStackTrace();
}

IAttribute customString = null;
try {
customString = workItemClient.findAttribute(projectArea, fCustomStringAttributeID, null);
} catch (TeamRepositoryException e) {
e.printStackTrace();
}
Object value = workItem.getValue(customString);

String sValue = "";

if(value!=null && value instanceof String) {
sValue = (String) value;
System.out.print("\tValue: " + sValue);
}
System.out.println();

return sValue;
}

Let me know is there any other way to get the value of work item type attribute.