Examples of net.jini.io.UnsupportedConstraintException

net.jini.io.UnsupportedConstraintException
Typically used as the nested exception of a {@link java.rmi.ConnectIOException} if the constraints for a remote callcannot be satisfied. Such an exception can be thrown at the point a remote method is invoked for a variety of reasons, including:
- A client requirement is not supported by the server.
- A client or server requirement conflicts with some other client or server requirement.
- A client or server requirement cannot be satisfied by the proxy implementation.
- The local subject that would be used for authentication does not contain sufficient credentials to satisfy a client or server requirement.
- For a client or server requirement, the proxy implementation does not implement any algorithm in common with the server (for example, because the proxy implementation only uses algorithms that are available in the client environment rather than downloading algorithm implementations).
- A delegated remote call is being attempted, and the current time is either earlier than the granted delegation start time or later than the granted delegation stop time.
@author Sun Microsystems, Inc. @since 2.0 @see net.jini.core.constraint.RemoteMethodControl

    if (support == NO_SUPPORT ||
        (!relativeOK &&
         constraint instanceof RelativeTimeConstraint))
    {
        if (isRequirement) {
      throw new UnsupportedConstraintException(
          "cannot satisfy constraint: " + constraint);
        } else {
      return;
        }
    }

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        maxConnectDeadline = Long.MAX_VALUE;
    }
      }
      if (!supported) {
    if (isRequirement) {
        throw new UnsupportedConstraintException(
      "cannot satisfy constraint: " + constraint);
    } else {
        return; // maxConnectDeadline is bogus in this case
    }
      }

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  {
      InvocationConstraint c = (InvocationConstraint) i.next();
      if (c == Integrity.YES) {
    integrity = true;
      } else if (!(c instanceof Integrity)) {
    throw new UnsupportedConstraintException(
        "cannot satisfy constraint: " + c);
      }
      // NYI: support ConstraintAlternatives containing Integrity
  }
  if (!integrity) {

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        chosen = c;
        best = score;
    }
      }
      if (chosen == null) {
    UnsupportedConstraintException uce = 
        new UnsupportedConstraintException(
      "unsupported constraints: " + constraints);
    if (se != null) {
        // At least one principal was rejected due to lack
        // of authentication permissions.
        secureThrow(se, uce);

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  public void checkConstraints() throws IOException {
      try {
    X500Constraints cons = X500Constraints.process(constraints,
                     true);
    if (cons.checkClientPrincipal(p) < 0) {
        throw new UnsupportedConstraintException(
      "principal not allowed: " + p);
    }
    Certificate cert = getCertificate(p);
    if (cert == null) {
        throw new DiscoveryProtocolException(

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  throws UnsupportedConstraintException
    {
  if (constraints.requirements().isEmpty()) {
      return InvocationConstraints.EMPTY;
  }
  throw new UnsupportedConstraintException(
      "cannot satisfy constraints: " + constraints);
    }

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  throws UnsupportedConstraintException
    {
  if (constraints.requirements().isEmpty()) {
      return InvocationConstraints.EMPTY;
  }
  throw new UnsupportedConstraintException(
      "cannot satisfy constraints: " + constraints);
    }

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      }
      
      if ((clientConstraints != null) &&
    !(currProxy instanceof RemoteMethodControl))
      {
    throw new UnsupportedConstraintException(
         "underlying proxy does not implement RemoteMethodControl");
      }


      /*
       * Set constraints on target proxy only if relative constraints

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    //inherit javadoc
    public InvocationConstraints checkConstraints(InvocationConstraints ics)
        throws UnsupportedConstraintException {
        if (!ics.isEmpty()){
            throw new UnsupportedConstraintException("This endpoint does not"
                + " support setting constraints on a remote call");
        }
        return InvocationConstraints.EMPTY;
    }

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      serverCapabilities.checkConstraints(constraints);
  for (Iterator i = unfulfilled.requirements().iterator(); i.hasNext();)
  {
      InvocationConstraint c = (InvocationConstraint) i.next();
      if (!(c instanceof Integrity)) {
    throw new UnsupportedConstraintException(
        "cannot satisfy unfulfilled constraint: " + c);
      }
      // REMIND: support ConstraintAlternatives containing Integrity?
  }
    }

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Related Classes of net.jini.io.UnsupportedConstraintException

com.sun.jini.discovery.DiscoveryConstraints

com.sun.jini.discovery.DiscoveryConstraints$ConstraintReducer

com.sun.jini.discovery.internal.EndpointBasedProvider

com.sun.jini.discovery.internal.Plaintext

com.sun.jini.discovery.internal.X500Client

com.sun.jini.discovery.internal.X500Client$X500MulticastAnnouncement

com.sun.jini.discovery.internal.X500Constraints

com.sun.jini.discovery.internal.X500Server

com.sun.jini.discovery.internal.X500Server$X500MulticastRequest

com.sun.jini.discovery.kerberos.Client$ClientImpl

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