Program: 73343
Project: 73343
Buggy source:
/** 
 * Replace all entities connected to the targetEntity with one RemoteSource or RemoteSink. Essentially instead of all entities connected to it, RemoteSink or RemoteSource would be used that would redirect all links from those entities to itself and connect them to dynamically added ports derived from the connected entities. This configuration would allow running of sources and sinks disconnected from the actors in between remotely by passing respective input and output via CommunicationToken.
 * @param targetEntity the entity to which actors that are replaced are connected
 * @exception CloneNotSupportedException
 * @exception IllegalActionException
 * @exception NameDuplicationException
 */
private void replaceConnectingEntities(ComponentEntity targetEntity) throws CloneNotSupportedException, IllegalActionException, NameDuplicationException {
  for (  Object portObject : targetEntity.portList()) {
    if (!(portObject instanceof IOPort)) {
      continue;
    }
    IOPort port=(IOPort)portObject;
    for (    Object relationObject : port.linkedRelationList()) {
      Relation relation=(Relation)relationObject;
      List<Port> linkedPortList=relation.linkedPortList(port);
      IOPort remotePort=null;
      for (      Port connectingPort : linkedPortList) {
        if (connectingPort instanceof IOPort && isValidConnectingPort((IOPort)connectingPort)) {
          remotePort=clonePort((IOPort)connectingPort);
          remotePort.setName(port.getName());
          remotePort.setContainer(this);
          break;
        }
      }
      relation.unlinkAll();
      if (remotePort != null) {
        port.link(relation);
        remotePort.link(relation);
      }
    }
  }
}

Fixed version (ground truth):
/** 
 * Replace all entities connected to the targetEntity with one RemoteSource or RemoteSink. Essentially instead of all entities connected to it, RemoteSink or RemoteSource would be used that would redirect all links from those entities to itself and connect them to dynamically added ports derived from the connected entities. This configuration would allow running of sources and sinks disconnected from the actors in between remotely by passing respective input and output via CommunicationToken.
 * @param targetEntity the entity to which actors that are replaced are connected
 * @param portTypes The map of ports and their resolved types
 * @exception CloneNotSupportedException
 * @exception IllegalActionException
 * @exception NameDuplicationException
 */
private void replaceConnectingEntities(ComponentEntity targetEntity,HashMap<String,Type> portTypes) throws CloneNotSupportedException, IllegalActionException, NameDuplicationException {
  for (  Object portObject : targetEntity.portList()) {
    if (!(portObject instanceof IOPort)) {
      continue;
    }
    IOPort port=(IOPort)portObject;
    for (    Object relationObject : port.linkedRelationList()) {
      Relation relation=(Relation)relationObject;
      List<Port> linkedPortList=relation.linkedPortList(port);
      IOPort remotePort=null;
      for (      Port connectingPort : linkedPortList) {
        if (connectingPort instanceof IOPort && isValidConnectingPort((IOPort)connectingPort)) {
          remotePort=(IOPort)connectingPort.clone(port.workspace());
          remotePort.setPersistent(true);
          remotePort.setName(port.getName());
          remotePort.setContainer(this);
          if (remotePort instanceof TypedIOPort) {
            Type type=portTypes.get(connectingPort.getFullName());
            ((TypedIOPort)remotePort).setTypeEquals(type);
            StringAttribute targetPortName=new StringAttribute(remotePort,"String_Node_Str");
            targetPortName.setExpression(connectingPort.getFullName());
          }
          break;
        }
      }
      relation.unlinkAll();
      if (remotePort != null) {
        port.link(relation);
        remotePort.link(relation);
      }
    }
  }
}