Issue using PersistableAdapter to set an int

For a few workflows I've created methods to set an object's attribute (one for String, one for TimeStamps) which have worked great over the past few years. I have a new requirement to set an int's value. I created a new method and changed the input attribute to accept an int. When I call the method, i get an odd error telling me I've violated the limit constraint. The value I'm sending is 2 which should not cause any issues.

wt.system.err Administrator - com.ptc.core.meta.container.common.ConstraintException: The value for Number Of Cavities must be between -9,223,372,036,854,775,808 and 9,223,372,036,854,775,807, inclusive.

The method i have is the following

	public static void setAttributeValue(WTObject pbo, String IBAName,int IBAValue) {
		PersistableAdapter obj;
		try {
			obj = new PersistableAdapter(pbo, null,Locale.US, new UpdateOperationIdentifier());
			obj.load(IBAName);
			System.out.println("Attribute " + IBAName + " value is " + IBAValue);
			obj.set(IBAName,IBAValue);
			obj.apply();
			PersistenceHelper.manager.modify(pbo);
		} catch (WTException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (NullPointerException e) {
			System.out.println("Null Pointer Encounterd In Code");
			e.printStackTrace();
		}
	}

This method is called by the following method to checkout the doc and check it in

	public static String setFaiDocumentAttributes(WTDocument doc,String checkinComment,String attName,int attValue,Boolean checkinDoc) {
		try {
			if (WorkInProgressHelper.service.isLocked(doc) == false) {
				doc = (WTDocument)WorkInProgressHelper.service.checkout(doc,WorkInProgressHelper.service.getCheckoutFolder(), "").getWorkingCopy();
			} else {
				doc = (WTDocument)WorkInProgressHelper.service.	workingCopyOf(doc);
			}
			ChangeWorkflowHelper.setAttributeValue(doc,attName,attValue);

			checkinComment += attName + ": " + attValue + "\n";

		} catch (WTPropertyVetoException | WTException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		if (checkinDoc) {
			 try {
				wt.vc.wip.WorkInProgressHelper.service.checkin(doc, checkinComment);
			} catch (WorkInProgressException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (WTPropertyVetoException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (PersistenceException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (WTException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		 }

		return checkinComment;
	}

Through the UI, I can set the attribute to the value 2. I've also added a limit constraint from 0 - max int size and the error message using the API was still showing the range violation of -max int size - positive max int size.