Alternative Parcelable and Serializable are deprecated.

serviceLibrary/src/main/java/info/mqtt/android/service/MqttAndroidClient.kt

@@ -6,6 +6,8 @@ import android.os.Build
 import android.os.Bundle
 import android.os.IBinder
 import android.util.SparseArray
+import info.mqtt.android.service.extension.parcelable
+import info.mqtt.android.service.extension.serializable
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -973,7 +975,7 @@ class MqttAndroidClient @JvmOverloads constructor(
      * Process a Connection Lost notification
      */
     private fun connectionLostAction(data: Bundle?) {
-        val reason = data!!.getSerializable(MqttServiceConstants.CALLBACK_EXCEPTION) as Exception?
+        val reason = data!!.parcelable(MqttServiceConstants.CALLBACK_EXCEPTION) as Exception?
         callbacksList.forEach {
             it.connectionLost(reason)
         }
@@ -998,18 +1000,18 @@ class MqttAndroidClient @JvmOverloads constructor(
      */
     private fun simpleAction(token: IMqttToken?, data: Bundle) {
         if (token != null) {
-            val status = data.getSerializable(MqttServiceConstants.CALLBACK_STATUS) as Status?
+            val status = data.serializable(MqttServiceConstants.CALLBACK_STATUS) as Status?
             if (status == Status.OK) {
                 (token as MqttTokenAndroid).notifyComplete()
             } else {
-                val errorMessage = data.getSerializable(MqttServiceConstants.CALLBACK_ERROR_MESSAGE) as String?
-                var exceptionThrown = data.getSerializable(MqttServiceConstants.CALLBACK_EXCEPTION) as Throwable?
+                val errorMessage = data.serializable(MqttServiceConstants.CALLBACK_ERROR_MESSAGE) as String?
+                var exceptionThrown = data.serializable(MqttServiceConstants.CALLBACK_EXCEPTION) as Throwable?
                 if (exceptionThrown == null && errorMessage != null) {
                     exceptionThrown = Throwable(errorMessage)
                 } else if (exceptionThrown == null) {
                     val bundleToString = data.keySet()
                         .joinToString(", ", "{", "}") { key ->
-                            "$key=${data[key]}"
+                            "$key=${data.getString(key)}"
                         }
                     exceptionThrown = Throwable("No Throwable given\n$bundleToString")
                 }
@@ -1052,7 +1054,7 @@ class MqttAndroidClient @JvmOverloads constructor(
      */
     private fun messageDeliveredAction(data: Bundle) {
         val token = removeMqttToken(data)
-        val status = data.getSerializable(MqttServiceConstants.CALLBACK_STATUS) as Status?
+        val status = data.serializable(MqttServiceConstants.CALLBACK_STATUS) as Status?
         if (token != null) {
             if (status == Status.OK && token is IMqttDeliveryToken) {
                 callbacksList.forEach { callback ->
@@ -1068,7 +1070,7 @@ class MqttAndroidClient @JvmOverloads constructor(
     private fun messageArrivedAction(data: Bundle?) {
         val messageId = data!!.getString(MqttServiceConstants.CALLBACK_MESSAGE_ID)!!
         val destinationName = data.getString(MqttServiceConstants.CALLBACK_DESTINATION_NAME)
-        val message: ParcelableMqttMessage = data.getParcelable(MqttServiceConstants.CALLBACK_MESSAGE_PARCEL)!!
+        val message: ParcelableMqttMessage = data.parcelable(MqttServiceConstants.CALLBACK_MESSAGE_PARCEL)!!
         try {
             if (messageAck == Ack.AUTO_ACK) {
                 callbacksList.forEach { callback ->
@@ -1098,7 +1100,7 @@ class MqttAndroidClient @JvmOverloads constructor(
                 MqttServiceConstants.TRACE_DEBUG -> it.traceDebug(message)
                 MqttServiceConstants.TRACE_ERROR -> it.traceError(message)
                 else -> {
-                    val e = data.getSerializable(MqttServiceConstants.CALLBACK_EXCEPTION) as Exception?
+                    val e = data.serializable(MqttServiceConstants.CALLBACK_EXCEPTION) as Exception?
                     it.traceException(message, e)
                 }
             }

serviceLibrary/src/main/java/info/mqtt/android/service/MqttConnection.kt

@@ -48,7 +48,9 @@ import java.util.*
  */
 internal class MqttConnection(
     private val service: MqttService, // fields for the connection definition
-    var serverURI: String, var clientId: String, private var persistence: MqttClientPersistence?, // Client handle, used for callbacks...
+    var serverURI: String,
+    var clientId: String,
+    private var persistence: MqttClientPersistence?, // Client handle, used for callbacks...
     var clientHandle: String
 ) : MqttCallbackExtended {
     // Saved sent messages and their corresponding Topics, activityTokens and

serviceLibrary/src/main/java/info/mqtt/android/service/MqttDeliveryTokenAndroid.kt

@@ -8,7 +8,9 @@ import org.eclipse.paho.client.mqttv3.MqttMessage
  * Implementation of the IMqttDeliveryToken interface for use from within the MqttAndroidClient implementation
  */
 internal class MqttDeliveryTokenAndroid(
-    client: MqttAndroidClient, userContext: Any?, listener: IMqttActionListener?, // The message which is being tracked by this token
+    client: MqttAndroidClient,
+    userContext: Any?,
+    listener: IMqttActionListener?, // The message which is being tracked by this token
     private var message: MqttMessage
 ) : MqttTokenAndroid(client, userContext, listener), IMqttDeliveryToken {
 

serviceLibrary/src/main/java/info/mqtt/android/service/extension/BundleExt.kt

@@ -0,0 +1,19 @@
+package info.mqtt.android.service.extension
+
+import android.os.Bundle
+import java.io.Serializable
+import android.os.Build
+import android.os.Build.VERSION.SDK_INT
+import android.os.Parcelable
+
+@Suppress("DEPRECATION")
+inline fun <reified T : Parcelable> Bundle.parcelable(key: String): T? = when {
+    SDK_INT >= 33 -> getParcelable(key, T::class.java)
+    else ->  getParcelable(key) as? T
+}
+
+@Suppress("DEPRECATION")
+inline fun <reified T : Serializable> Bundle.serializable(key: String): T? = when {
+    SDK_INT >= Build.VERSION_CODES.TIRAMISU -> getSerializable(key, T::class.java)
+    else ->  getSerializable(key) as? T
+}

serviceLibrary/src/main/java/info/mqtt/android/service/room/MqMessageDao.kt

@@ -13,13 +13,13 @@ interface MqMessageDao {
     fun allArrived(clientHandle: String): List<MqMessageEntity>
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
-    fun insert(MqMessageEntity: MqMessageEntity): Long
+    fun insert(mqMessageEntity: MqMessageEntity): Long
 
     @Update
-    fun updateAll(vararg MqMessageEntities: MqMessageEntity)
+    fun updateAll(vararg mqMessageEntity: MqMessageEntity)
 
     @Delete
-    fun delete(MqMessageEntity: MqMessageEntity)
+    fun delete(mqMessageEntity: MqMessageEntity)
 
     @Query("DELETE FROM MqMessageEntity WHERE clientHandle = :clientHandle AND messageId = :id")
     fun deleteId(clientHandle: String, id: String): Int

serviceLibrary/src/main/java/info/mqtt/android/service/room/MqMessageDatabase.kt

@@ -50,24 +50,26 @@ abstract class MqMessageDatabase : RoomDatabase() {
         return result
     }
 
-    @Suppress("SimpleRedundantLet")
     companion object {
 
         const val MQ_DB_VERSION = 1
-        private var db: MqMessageDatabase? = null
+
+        @Volatile
+        private var instance: MqMessageDatabase? = null
 
         @Synchronized
         fun getDatabase(context: Context, storageName: String = "messageMQ"): MqMessageDatabase {
-            return db?.let {
-                it
-            } ?: run {
-                db = Room.databaseBuilder(
-                    context.applicationContext,
-                    MqMessageDatabase::class.java,
-                    storageName
-                ).build()
-                db!!
+            return instance ?: synchronized(this) {
+                instance ?: buildDatabase(context.applicationContext, storageName).also { instance = it }
             }
         }
+
+        private fun buildDatabase(context: Context, storageName: String): MqMessageDatabase {
+            return Room.databaseBuilder(
+                context.applicationContext,
+                MqMessageDatabase::class.java,
+                storageName
+            ).build()
+        }
     }
 }