this.shardName = Preconditions.checkNotNull(shardName, "shardName should not be null");
this.memberName = Preconditions.checkNotNull(memberName, "memberName should not be null");
}
this.shardName = Preconditions.checkNotNull(shardName, "shardName should not be null");
this.memberName = Preconditions.checkNotNull(memberName, "memberName should not be null");
}