@Nullable
    public String getServiceSpecificLogId(@Nullable final LogEntry logEntry) {
        if (logEntry == null) {
            return null;
        }
        return getConnector().getServiceSpecificLogId(logEntry.serviceLogId);
    }
Attention, calling this method may trigger a database access for the cache!
main/src/main/java/cgeo/geocaching/models/Geocache.java