if (registryTracker != null) { registryTracker.close(); registryTracker = null; }
	void closeServices() {		if (registryTracker != null) {			registryTracker.close();			registryTracker = null;		}		if (initTracker != null) {			initTracker.close();			initTracker = null;		}		if (logTracker != null) {			logTracker.close();			logTracker = null;		}		if (debugTracker != null) {			debugTracker.close();			debugTracker = null;		}		if (bundleTracker != null) {			bundleTracker.close();			bundleTracker = null;		}		if (configurationLocationTracker != null) {			configurationLocationTracker.close();			configurationLocationTracker = null;		}		if (instanceLocationTracker != null) {			instanceLocationTracker.close();			instanceLocationTracker = null;		}	}