Request and Prequest

public class Request {

  // Nonblocking communication

  public Status wait() throws MPJException {...}

  public Status test() throws MPJException {...}

  public Request() throws MPJException {...}

  public void finalize() {...}

  public boolean isVoid() throws MPJException {...}

  public static Status waitAny(Request [] arrayOfRequests) throws MPJException {...}

  public static Status testAny(Request [] arrayOfRequests) throws MPJException {...}

  public static Status [] waitAll(Request [] arrayOfRequests) throws MPJException {...}

  public static Status [] testAll(Request [] arrayOfRequests) throws MPJException {...}

  public static Status [] waitSome(Request [] arrayOfRequests) throws MPJException {...}

  public static Status [] testSome(Request [] arrayOfRequests) throws MPJException {...}


  // Probe and cancel

  public void cancel() throws MPJException {...}

  ...
}

public class Prequest extends Request {

  // Persistent communication requests

  public void start() throws MPJException {...}

  public static void startAll(Request [] arrayOfRequests) throws MPJException {...}

  ...
}