if (ChainBuilderAgent.DEBUG) {
if (ChainBuilderAgent.DEBUG_TIMING) {
	public Collection getModuleCategories() {				// if we're done, go for it.				if (moduleCategoryHash != null && moduleCategoryHash.size() > 0)			return moduleCategoryHash.values();				if (loadingModuleCategories == false) {			long start = System.currentTimeMillis();			loadingModuleCategories = true;			retrieveModuleCategories();			loadingModuleCategories = false;			if (ChainBuilderAgent.DEBUG) {				long end = System.currentTimeMillis()-start;				System.err.println("time spent in getModuleCategories.."+end);			}			return moduleCategoryHash.values();		}		/* shouldn't get here */		return null;	}