Description Markus Keller 2008-07-01 06:32:52 EDT

HEAD of TypeHierarchy#getAllSuperInterfaces(IType) and #getAllSupertypes(IType) start with:
	ArrayList supers = new ArrayList();
	if (this.typeToSuperInterfaces.get(type) == null) {
		return NO_TYPE;
	}

It looks like typeToSuperInterfaces.get(type) is an empty array if the type is in the hierarchy but has not super interfaces.
=> The optimization only works for types that are not in the hierarchy.

In #getAllSupertypes(IType), the check for emptiness would even be wrong if it worked, since the method would return an empty array even if the type is a subclass of Object.