SortedBugCollection result = duplicate(); result.clearBugInstances();
SortedBugCollection dup = new SortedBugCollection((ProjectStats) projectStats.clone(), comparator); dup.errorList.addAll(this.errorList); dup.missingClassSet.addAll(this.missingClassSet); dup.summaryHTML = this.summaryHTML; dup.classFeatureSetMap.putAll(this.classFeatureSetMap); dup.sequence = this.sequence; dup.timestamp = this.timestamp; dup.releaseName = this.releaseName; for (AppVersion appVersion : appVersionList) { dup.appVersionList.add((AppVersion) appVersion.clone()); } dup.uniqueIdToBugInstanceMap.clear();
	public SortedBugCollection createEmptyCollectionWithMetadata() {		SortedBugCollection result = duplicate();		result.clearBugInstances();		return result;	}