scala netty codec when calling to Facebook - facebook

Question

I am using play 2.2.1 built with Scala 2.10.2 (running Java 1.7.0_45). I have an endpoint which makes calls to Facebook to validate Facebook oauth tokens passed to us from our clients.
We asynchronously call to both a homegrown RESTful database service and to https facebook graph api. In other words, we're calling to two systems simultaneously. Intermittently, we're getting the exception below.
java.lang.IllegalArgumentException: invalid version format: ￆBﾇﾹￋﾸS
at org.jboss.netty.handler.codec.http.HttpVersion.(HttpVersion.java:102) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpVersion.valueOf(HttpVersion.java:62) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpResponseDecoder.createMessage(HttpResponseDecoder.java:104) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:189) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:143) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:127) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:500) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:435) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec.handleUpstream(HttpClientCodec.java:92) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:109) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:90) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) ~[netty-3.7.0.Final.jar:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) ~[na:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) ~[na:1.7.0_45]
at java.lang.Thread.run(Thread.java:744) ~[na:1.7.0_45]
2013-11-20 16:55:27,175: ERROR [lt-dispatcher-2] application - An unexpected error occurred
I am aware of this post to stackoverflow: Send multiple asynchonous requests on a Netty client. Although they get a similar error, their code is doing much more complicated bootstrapping, so I think the solution for me will be different. Here is our code:
def getUserInfo(token: String): Future[FacebookUserInfo] = {
val futureResponse: Future[Response] = WS.url(fbUrl + mePath).withQueryString("access_token" -> token).get()
futureResponse.map {
response => parseFacebookUserInfoResponse(response)
}
}
def parseFacebookUserInfoResponse(response: Response): FacebookUserInfo = {
Logger.debug("Got response code:" + response.status)
if (response.status == HttpURLConnection.HTTP_OK) {
val json: JsValue = Json.parse(response.body)
val jsonResult: JsResult[FacebookUserInfo] = json.validate[FacebookUserInfo]
jsonResult.fold(
valid = {
success => success
},
invalid = {
error => throw new FacebookResponseException("Invalid Response received.")
}
)
}
else if (response.status == HttpURLConnection.HTTP_BAD_REQUEST) {
throw new FacebookTokenException(response.json.as[FacebookError].message)
} else
throw new MyException(response.body)
}
What is the best way to fix this problem? Can I switch the default http client and use Apache HttpClient, for example? Do I need to update the codec? Do I need to upgrade/downgrade netty?