@Override public InstalledPackage getBackingPackageForResource(Subject subject, int resourceId) { InstalledPackage result = null; // check if the resource is content backed if not, return null Resource res = resourceManager.getResourceById(subject, resourceId); ResourceType type = res.getResourceType(); if (!ResourceCreationDataType.CONTENT.equals(type.getCreationDataType())) { return null; } InstalledPackageCriteria criteria = new InstalledPackageCriteria(); criteria.addFilterResourceId(resourceId); PageList<InstalledPackage> ips = findInstalledPackagesByCriteria(subject, criteria); // should not be more than 1 if ((null != ips) && (ips.size() > 0)) { int mostRecentPackageIndex = 0; if (ips.size() > 1) { for (int index = 1; index < ips.size(); index++) { if (ips.get(index).getInstallationDate() > ips.get(mostRecentPackageIndex).getInstallationDate()) { mostRecentPackageIndex = index; } } } result = ips.get(mostRecentPackageIndex); // fetch these result.getPackageVersion().getGeneralPackage().getId(); result.getPackageVersion().getGeneralPackage().getPackageType().getId(); result.getPackageVersion().getArchitecture().getId(); } return result; }