protected List<ApplicationKey> getAppKeys(final int boundNetKeyIndex) {
        final List<ApplicationKey> applicationKeys = new ArrayList<>();
        for (ApplicationKey applicationKey : appKeys) {
            if (applicationKey.getBoundNetKeyIndex() == boundNetKeyIndex) {
                applicationKeys.add(applicationKey);
            }
        }
        return applicationKeys;
    }
Returns a list of application keys bound to a Network key

@param boundNetKeyIndex Network Key index
mesh/src/main/java/no/nordicsemi/android/mesh/BaseMeshNetwork.java