Fix build

libsession/src/main/java/org/session/libsession/messaging/jobs/MessageSendJob.kt

@@ -88,17 +88,16 @@ class MessageSendJob(val message: Message, val destination: Destination) : Job {
     override fun serialize(): Data {
         val kryo = Kryo()
         kryo.isRegistrationRequired = false
-        val output = Output(ByteArray(4096), MAX_BUFFER_SIZE)
         // Message
-        kryo.writeClassAndObject(output, message)
-        output.close()
-        val serializedMessage = output.toBytes()
-        output.clear()
+        val messageOutput = Output(ByteArray(4096), MAX_BUFFER_SIZE)
+        kryo.writeClassAndObject(messageOutput, message)
+        messageOutput.close()
+        val serializedMessage = messageOutput.toBytes()
         // Destination
-        kryo.writeClassAndObject(output, destination)
-        output.close()
-        val serializedDestination = output.toBytes()
-        output.clear()
+        val destinationOutput = Output(ByteArray(4096), MAX_BUFFER_SIZE)
+        kryo.writeClassAndObject(destinationOutput, destination)
+        destinationOutput.close()
+        val serializedDestination = destinationOutput.toBytes()
         // Serialize
         return Data.Builder()
             .putByteArray(MESSAGE_KEY, serializedMessage)