// create a new tab
GraphCanvas canvas = this.engine.getGUI().newGraphCanvas(true);
// we can call with null because WSDL is already accessed at this point
WSComponent workflowComponent = new StreamReceiveComponent(oldWorkflow
.getOdeInvokableWSDL(null, null));
Node workflowNode = canvas.addNode(workflowComponent, new Point(600,
100));
//
this.engine.getWorkflow().getWSDLs().put(