@GwtCompatible
public final class Predicates {

  /**
   * Returns a predicate that always evaluates to {@code true}.
   *
   * <p><b>Discouraged:</b> Prefer using {@code x -> true}, but note that lambdas do not have
   * human-readable {@link #toString()} representations and are not serializable.
   */
  public static <T extends @Nullable Object> Predicate<T> alwaysTrue() {
    return ObjectPredicate.ALWAYS_TRUE.withNarrowedType();
  }

  /**

                    DCERPC_FAULT_CONTEXT_MISMATCH, DCERPC_FAULT_OP_RNG_ERROR, DCERPC_FAULT_UNK_IF, DCERPC_FAULT_PROTO_ERROR };

    /**
     * Array of human-readable messages for DCE/RPC fault codes
     */
    String[] DCERPC_FAULT_MESSAGES = { "DCERPC_FAULT_OTHER", "DCERPC_FAULT_ACCESS_DENIED", "DCERPC_FAULT_CANT_PERFORM", "DCERPC_FAULT_NDR",

    /**
     * Human-readable error messages corresponding to DOS error codes.
     * Provides descriptive text for each error condition.
     */
    /*
     * These aren't really used by jCIFS--
     * the map above is used to immediately
     * map to NTSTATUS codes.
     */
    /**
     * Human-readable error messages corresponding to DOS error codes.

                    DCERPC_FAULT_CONTEXT_MISMATCH, DCERPC_FAULT_OP_RNG_ERROR, DCERPC_FAULT_UNK_IF, DCERPC_FAULT_PROTO_ERROR };

    /**
     * Array of human-readable messages for DCE/RPC fault codes
     */
    String[] DCERPC_FAULT_MESSAGES = { "DCERPC_FAULT_OTHER", "DCERPC_FAULT_ACCESS_DENIED", "DCERPC_FAULT_CANT_PERFORM", "DCERPC_FAULT_NDR",

    /**
     * Checks if the registration was successful.
     *
     * @return true if successful
     */
    public boolean isSuccess() {
        return returnCode == 0;
    }

    /**
     * Gets a human-readable error description.
     *
     * @return the error description
     */
    public String getError() {
        return error != null ? error : "Error code: " + returnCode;
    }

    /**

    /**
     * Checks if the unregistration was successful.
     *
     * @return true if successful
     */
    public boolean isSuccess() {
        return returnCode == 0;
    }

    /**
     * Gets a human-readable error description.
     *
     * @return the error description
     */
    public String getError() {
        return error != null ? error : "Error code: " + returnCode;
    }

    /**

     */
    RdmaMemoryRegion registerMemory(ByteBuffer buffer, EnumSet<RdmaAccess> access) throws IOException;

    /**
     * Get provider name (e.g., "InfiniBand", "iWARP", "RoCE", "TCP Fallback")
     *
     * @return human-readable provider name
     */
    String getProviderName();

    /**
     * Get maximum message size supported by this provider
     *
     * @return maximum message size in bytes
     */

        return "Mem:{used " + byteCountToDisplaySize(usedBytes) + ", heap " + byteCountToDisplaySize(totalBytes) + ", max "
                + byteCountToDisplaySize(maxBytes) + "}";
    }

    /**
     * Converts byte count to human-readable size format.
     *
     * @param size the size in bytes
     * @return formatted size string
     */
    public static String byteCountToDisplaySize(final long size) {

     */
    public boolean isSuccess() {
        return returnCode == ERROR_SUCCESS;
    }

    /**
     * Gets the error message for the current return code.
     *
     * @return a human-readable error message
     */
    public String getErrorMessage() {
        switch (returnCode) {
        case ERROR_SUCCESS:
            return "Success";
        case ERROR_INVALID_PARAMETER:

    /** The NetBIOS error class */
    public int errorClass;
    /** The NetBIOS error code */
    public int errorCode;

    /**
     * Converts NetBIOS error class and code to a human-readable string.
     *
     * @param errorClass the error class
     * @param errorCode the error code
     * @return a descriptive error string
     */