Re: OTA API for Ilinkable interface

I am trying to link defects to requirements using the OTA API in Java (via ComfyJ).  I can't figure out how to cast the IReq3 interface to the ILinkable interface.  Does anyone have any experience with comfyJ and OTA that might be able to solve the below:

Code:

// Get BugLinkFactory

IReq3 req = findRequirement(1);

ILinkable linkableReq = (ILinkable)req; //This is the line that causes the error

ILinkFactory bugLinkF = LinkFactory.queryInterface(linkableReq.getBugLinkFactory());

// Add new traces

ILink bToRLink = Link.queryInterface(bugLinkF.addItem(new Variant(traceID)));

bToRLink.setLinkType(new BStr("Related"));

bToRLink.post();

Error:

IReq3 cannot be cast to type ILinkable