Class GoRef

bind/java/Seq.java:285–295

	// GoRefs are enqueued to the singleton GoRefQueue when no longer live,
	// so the corresponding reference count can be decremented.
	static class GoRef extends PhantomReference<GoObject> {
		final int refnum;

		GoRef(int refnum, GoObject obj, GoRefQueue q) {
			super(obj, q);
			if (refnum > 0) {
				throw new RuntimeException("GoRef instantiated with a Java refnum " + refnum);
			}
			this.refnum = refnum;
		}
	}

	// RefMap is a mapping of integers to Ref objects.
	//