Integrate crash fixes

Bring in cl/355393342, cl/355399665

Bug: 179175447
Test: manual
Change-Id: Iaff65f6c0da9f063f5311ac8a3a94f2df821e909
diff --git a/testapps/TestRcsApp/aosp_test_rcsclient/src/com/android/libraries/rcs/simpleclient/registration/MessageConverter.java b/testapps/TestRcsApp/aosp_test_rcsclient/src/com/android/libraries/rcs/simpleclient/registration/MessageConverter.java
index bffb938..75eb48d 100644
--- a/testapps/TestRcsApp/aosp_test_rcsclient/src/com/android/libraries/rcs/simpleclient/registration/MessageConverter.java
+++ b/testapps/TestRcsApp/aosp_test_rcsclient/src/com/android/libraries/rcs/simpleclient/registration/MessageConverter.java
@@ -67,7 +67,9 @@
                 .append(length)
                 .append("\r\n");
 
-        return new SipMessage(startLine, headers.toString(), message.getRawContent());
+        byte[] rawContent = message.getRawContent();
+        rawContent = rawContent == null ? new byte[0] : message.getRawContent();
+        return new SipMessage(startLine, headers.toString(), rawContent);
     }
 
     public static Message toStackMessage(SipMessage message) throws ParseException {
diff --git a/testapps/TestRcsApp/aosp_test_rcsclient/src/com/android/libraries/rcs/simpleclient/service/chat/SimpleChatSession.java b/testapps/TestRcsApp/aosp_test_rcsclient/src/com/android/libraries/rcs/simpleclient/service/chat/SimpleChatSession.java
index b72f861..0393063 100644
--- a/testapps/TestRcsApp/aosp_test_rcsclient/src/com/android/libraries/rcs/simpleclient/service/chat/SimpleChatSession.java
+++ b/testapps/TestRcsApp/aosp_test_rcsclient/src/com/android/libraries/rcs/simpleclient/service/chat/SimpleChatSession.java
@@ -210,7 +210,9 @@
             return Futures.immediateFuture(null);
         }
         try {
-            mMsrpSession.terminate();
+            if (mMsrpSession != null) {
+                mMsrpSession.terminate();
+            }
         } catch (IOException e) {
             return Futures.immediateFailedFuture(
                     new ChatServiceException(