Messaging: Nullability

Change-Id: I8bcde2a868a9c8989971d056be24ff4986e4f8f3

src/com/android/messaging/util/DebugUtils.java

@@ -31,6 +31,8 @@ import android.telephony.SmsMessage;
 import android.text.TextUtils;
 import android.widget.ArrayAdapter;
 
+import androidx.annotation.NonNull;
+
 import com.android.messaging.Factory;
 import com.android.messaging.R;
 import com.android.messaging.datamodel.SyncManager;
@@ -101,6 +103,7 @@ public class DebugUtils {
             mTitle = title;
         }
 
+        @NonNull
         @Override
         public String toString() {
             return mTitle;

src/com/android/messaging/util/EmailAddress.java

@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2015 The Android Open Source Project
+ * Copyright (C) 2024 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +17,8 @@
 
 package com.android.messaging.util;
 
+import androidx.annotation.NonNull;
+
 import com.google.common.base.CharMatcher;
 
 /**
@@ -104,6 +107,7 @@ public final class EmailAddress {
         return isValidInternal();
     }
 
+    @NonNull
     @Override
     public String toString() {
         return user + "@" + host;

src/com/android/messaging/util/NotificationPlayer.java

@@ -26,6 +26,8 @@ import android.os.Looper;
 import android.os.PowerManager;
 import android.os.SystemClock;
 
+import androidx.annotation.NonNull;
+
 import com.android.messaging.Factory;
 
 import java.util.LinkedList;
@@ -54,6 +56,7 @@ public class NotificationPlayer implements OnCompletionListener {
         long requestTime;
         boolean releaseFocus;
 
+        @NonNull
         @Override
         public String toString() {
             return "{ code=" + code + " looping=" + looping + " stream=" + stream

src/com/android/messaging/util/exif/ExifTag.java

@@ -17,6 +17,8 @@
 
 package com.android.messaging.util.exif;
 
+import androidx.annotation.NonNull;
+
 import java.nio.charset.Charset;
 import java.text.SimpleDateFormat;
 import java.util.Arrays;
@@ -999,6 +1001,7 @@ public class ExifTag {
         return false;
     }
 
+    @NonNull
     @Override
     public String toString() {
         return String.format("tag id: %04X\n", mTagId) + "ifd id: " + mIfd + "\ntype: "

src/com/android/messaging/util/exif/Rational.java

@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2012 The Android Open Source Project
+ * Copyright (C) 2024 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +17,8 @@
 
 package com.android.messaging.util.exif;
 
+import androidx.annotation.NonNull;
+
 /**
  * The rational data type of EXIF tag. Contains a pair of longs representing the
  * numerator and denominator of a Rational number.
@@ -81,6 +84,7 @@ public class Rational {
         return false;
     }
 
+    @NonNull
     @Override
     public String toString() {
         return mNumerator + "/" + mDenominator;