public ResourceTracker<Stream> createResourceTracker(RepositoryLookupFailureCallback lookupFailureCallback) {
public ResourceTracker<Stream> createResourceTracker(RepositoryLookupFailureCallback lookupFailureCallback, MethodGen methodGen, CFG cfg) {
			public ResourceTracker<Stream> createResourceTracker(RepositoryLookupFailureCallback lookupFailureCallback) {				return new StreamResourceTracker(lookupFailureCallback);			}