+ private Set<SignalServiceAddress> getSignalServiceAddresses(Collection<String> recipients) {
+ Set<SignalServiceAddress> recipientsTS = new HashSet<>(recipients.size());
+ for (String recipient : recipients) {
+ try {
+ recipientsTS.add(getPushAddress(recipient));
+ } catch (InvalidNumberException e) {
+ System.err.println("Failed to add recipient \"" + recipient + "\": " + e.getMessage());
+ System.err.println("Aborting sending.");
+ save();
+ return null;
+ }
+ }
+ return recipientsTS;
+ }
+