ai = queryFSInformation(th, AllocInfo.class, FileSystemInformation.SMB_INFO_ALLOCATION);
                    break;
                }
            default:
                throw ex;
            }
        }
        return ai;
    }

    private <T extends FileSystemInformation> T queryFSInformation(final SmbTreeHandleImpl th, final Class<T> clazz, final byte level)

                    level = Trans2QueryFSInformationResponse.SMB_INFO_ALLOCATION;
                    return queryFSInformation(level);
                }
                throw ex;
            }
        }
        return 0L;
    }

    private long queryFSInformation(final int level) throws SmbException {
        Trans2QueryFSInformationResponse response = new Trans2QueryFSInformationResponse(level);