How to use

removeIncomingSequenceEdge

method

in

jadex.bpmn.model.MActivity

/**
 *  Helper method disconnecting this edge.
 */
public void disconnect()
{
  if (this.source != null)
  {
    this.source.removeOutgoingSequenceEdge(this);
  }
  
  if (this.target != null)
  {
    this.target.removeIncomingSequenceEdge(this);
  }
  
  this.source = null;
  this.target = null;
}

/**
 *  Helper method connecting two activities using this edge.
 *  The previous connection is removed.
 * 
 *  @param source New source of the edge.
 *  @param target New target of the edge.
 */
public void connect(MActivity source, MActivity target)
{
  if (this.source != null)
  {
    this.source.removeOutgoingSequenceEdge(this);
  }
  
  if (this.target != null)
  {
    this.target.removeIncomingSequenceEdge(this);
  }
  
  this.source = source;
  this.target = target;
  
  source.addOutgoingSequenceEdge(this);
  target.addIncomingSequenceEdge(this);
}
 

  entry.getValue().getSource().removeOutgoingSequenceEdge((MSequenceEdge) entry.getValue());
if (entry.getValue().getTarget() != null)
  entry.getValue().getTarget().removeIncomingSequenceEdge((MSequenceEdge) entry.getValue());

  /**
   *  Sets the target.
   */
  public void setTarget(mxICell target)
  {
    if (getBpmnElement() != null)
    {
      MSequenceEdge medge = (MSequenceEdge) getBpmnElement();
      if (getTarget() != null)
      {
        ((MActivity) ((VActivity) getTarget()).getBpmnElement()).removeIncomingSequenceEdge(medge);
        medge.setTarget(null);
      }
      
      if (target != null)
      {
        MActivity mtarget = (MActivity) ((VActivity) target).getBpmnElement();
        mtarget.addIncomingSequenceEdge(medge);
        
        medge.setTarget(mtarget);
      }
    }
    super.setTarget(target);
  }
}

medge.getTarget().removeIncomingSequenceEdge(medge);
modelcontainer.setDirty(true);