code: @Sensitive
      public static byte[] encodeLTPATokenForWASClassic(Codec codec, @Sensitive byte[] ltpaTokenBytes) {
          byte[] result = null;
          try {
              byte[] innerGSSToken = encodeLTPAToken(codec, ltpaTokenBytes);
              if (innerGSSToken != null) {
                  result = createGSSToken(codec, LTPAMech.LTPA_OID, innerGSSToken);
              }
          } catch (Exception ex) {
              // do nothing, return null
          }
          return result;
      }
docs: WAS classic needs the GSSToken containing the encoded LTPA token inside another GSSToken
  
  @param codec The codec to do the encoding of the Any.
  @param ltpaTokenBytes the bytes of the LTPA token to encode.
  
  @return the GSSToken containing the LTPA token wrapped inside another GSSToken.