Fixed crash, simplification

app/src/main/java/eu/faircode/email/FragmentCompose.java

@@ -865,9 +865,9 @@ public class FragmentCompose extends FragmentEx {
             final String action = getArguments().getString("action");
             Log.i(Helper.TAG, "Loaded draft id=" + draft.id + " action=" + action);
 
-            etTo.setText(draft.to == null ? null : MessageHelper.getFormattedAddresses(draft.to, true));
-            etCc.setText(draft.cc == null ? null : MessageHelper.getFormattedAddresses(draft.cc, true));
-            etBcc.setText(draft.bcc == null ? null : MessageHelper.getFormattedAddresses(draft.bcc, true));
+            etTo.setText(MessageHelper.getFormattedAddresses(draft.to, true));
+            etCc.setText(MessageHelper.getFormattedAddresses(draft.cc, true));
+            etBcc.setText(MessageHelper.getFormattedAddresses(draft.bcc, true));
             etSubject.setText(draft.subject);
 
             etBody.setText(null);

app/src/main/java/eu/faircode/email/FragmentMessage.java

@@ -375,16 +375,16 @@ public class FragmentMessage extends FragmentEx {
         if (savedInstanceState == null) {
             setSubtitle(Helper.localizeFolderName(getContext(), message.folderName));
 
-            tvFrom.setText(message.from == null ? null : MessageHelper.getFormattedAddresses(message.from, true));
+            tvFrom.setText(MessageHelper.getFormattedAddresses(message.from, true));
             tvTime.setText(message.sent == null ? null : df.format(new Date(message.sent)));
-            tvTo.setText(message.to == null ? null : MessageHelper.getFormattedAddresses(message.to, true));
+            tvTo.setText(MessageHelper.getFormattedAddresses(message.to, true));
             tvSubject.setText(message.subject);
 
             tvCount.setText(Integer.toString(message.count));
 
-            tvReplyTo.setText(message.reply == null ? null : MessageHelper.getFormattedAddresses(message.reply, true));
-            tvCc.setText(message.cc == null ? null : MessageHelper.getFormattedAddresses(message.cc, true));
-            tvBcc.setText(message.bcc == null ? null : MessageHelper.getFormattedAddresses(message.bcc, true));
+            tvReplyTo.setText(MessageHelper.getFormattedAddresses(message.reply, true));
+            tvCc.setText(MessageHelper.getFormattedAddresses(message.cc, true));
+            tvBcc.setText(MessageHelper.getFormattedAddresses(message.bcc, true));
 
             tvError.setText(message.error);
         } else {

app/src/main/java/eu/faircode/email/MessageHelper.java

@@ -252,8 +252,8 @@ public class MessageHelper {
     }
 
     static String getFormattedAddresses(Address[] addresses, boolean full) {
-        if (addresses == null)
-            return null;
+        if (addresses == null || addresses.length == 0)
+            return "";
 
         List<String> formatted = new ArrayList<>();
         for (Address address : addresses)