| Re: [paho-dev] Looking for Java Client sample code for secure WebSocket connection |
Is this really necessary on a Java socket where you are not upgrading from an HTTP connection but creating a new connection?
Marc L. Cohen
MessageSight Test/Development
Internet:mlcohen@xxxxxxxxxx
also at:teddybbear@xxxxxxx
(512) 286-5744 (T/L 363-5744)
FAX (512) 973-4293
paho-dev-bounces@xxxxxxxxxxx wrote on 08/10/2016 11:57:02 AM:
> From: James Sutton <jpwsutton+eclipse@xxxxxxxxx>
> To: General development discussions for paho project <paho-dev@xxxxxxxxxxx>
> Date: 08/10/2016 11:57 AM
> Subject: Re: [paho-dev] Looking for Java Client sample code for
> secure WebSocket connection
> Sent by: paho-dev-bounces@xxxxxxxxxxx
>
> Hi Mike,
>
> Which broker are you using for this? The HTTP_HEADER_UPGRADE header
> is required to change the initial http connection into a web socket
> and so the null pointer is correct (though a better error might be a
> good improvement for 1.3.0). I've tested this with the
> iot.eclipse.leg Mosquitto, but not with other brokers so can't
> guarantee the results on them...
>
> On Wed, 10 Aug 2016, 22:00 Mike Tran, <miketran@xxxxxxxxxx> wrote:
> Hi James,
>
> Thanks for the reply.. I found this sample in your git account:
> https://github.com/jpwsutton/EclipsePahoMavenExample/blob/master/
> src/main/java/org/eclipse/paho/App.java
>
> My code is not much different from yours, but keep hitting
> NullPointerException exception in receiveHandshakeResponse() because
> HTTP_HEADER_UPGRADEwas not in the response. Note that _javascript_
> client works fine on both 1883 and 443 ports.
>
> NullPointerException on a WebSocket connection:
>
> INFO: main: Connecting client d:xxxxxx:xxxxxx:xxxxxx to ws://
> xxxxxx.messaging.internetofthings.ibmcloud.com:1883
> MqttException (0) - java.lang.NullPointerException
> at
> org.eclipse.paho.client.mqttv3.internal.ExceptionHelper.createMqttException
> (ExceptionHelper.java:38)
> at org.eclipse.paho.client.mqttv3.internal.ClientComms
> $ConnectBG.run(ClientComms.java:664)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NullPointerException
> at
> org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketHandshake.receiveHandshakeResponse
> (WebSocketHandshake.java:133)
> at
> org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketHandshake.execute
> (WebSocketHandshake.java:74)
> at
> org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketNetworkModule.start
> (WebSocketNetworkModule.java:78)
> at org.eclipse.paho.client.mqttv3.internal.ClientComms
> $ConnectBG.run(ClientComms.java:650)
>
>
>
> NullPointerException on a secure WebSocket connection:
>
> INFO: main: Connecting client d:d:xxxxxx:xxxxxx:xxxxxx to wss://
> xxxxxx.messaging.internetofthings.ibmcloud.com:443
> MqttException (0) - java.lang.NullPointerException
> at
> org.eclipse.paho.client.mqttv3.internal.ExceptionHelper.createMqttException
> (ExceptionHelper.java:38)
> at org.eclipse.paho.client.mqttv3.internal.ClientComms
> $ConnectBG.run(ClientComms.java:664)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NullPointerException
> at
> org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketHandshake.receiveHandshakeResponse
> (WebSocketHandshake.java:133)
> at
> org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketHandshake.execute
> (WebSocketHandshake.java:74)
> at
> org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketSecureNetworkModule.start
> (WebSocketSecureNetworkModule.java:77)
> at org.eclipse.paho.client.mqttv3.internal.ClientComms
> $ConnectBG.run(ClientComms.java:650)
>
>
>
>
> From: James Sutton <jpwsutton+eclipse@xxxxxxxxx>
> To: General development discussions for paho project <paho-
> dev@xxxxxxxxxxx>
> Date: 08/10/2016 04:49 AM
> Subject: Re: [paho-dev] Looking for Java Client sample code
> for secure WebSocket connection
> Sent by: paho-dev-bounces@xxxxxxxxxxx
>
>
>
> Hi Mike, if you have a look at my github account, I have a Java SSL
> example project. Simply take that and change the server Uri to wss:
> and it should work.
>
> Sorry for no link, I'm currently on holiday without my laptop!
>
> James
>
> On Tue, 9 Aug 2016, 20:02 Mike Tran, <miketran@xxxxxxxxxx> wrote:
> Hi all,
>
> I have been searching for a sample code for wss:// connection.
> Please let me know if we already have one somewhere in the archive... Thanks.
>
> --
> Regards,
> Mike Tran
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