{
          if (diagnostics == null)
          {
            return false;
          }
          else
          {
            result = false;
            diagnostics.add
              (createDiagnostic
                (Diagnostic.ERROR,
                 DIAGNOSTIC_SOURCE,
                 UNIQUE_NS_URIS,
                 "_UI_EPackageUniqueNsURIs_diagnostic", 
                 new Object[] { nsURI },
                 new Object[] { ePackage, otherEPackage },
                 context));
          }
        }