10c7dbd6bb
There was a check to ensure that the message passed into the aforementioned function was not null. However, it does not make sense to have this check here because we should force the caller to enforce that. If a message passed into this function is null, we should instead be throwing an NPE. Thus, with this change, an NPE will be thrown by update.putChangeMessage if the message is null instead of the method just being a no-op. Additionally, I added a check for null in all of the callers where there is a possibility that the argument it would pass could be null. Change-Id: Ib39359704db08d06e9117a55f76727b0e798c60d