Unable to subscribe to Salesforce Platform Event with camel-salesforce-3.4.0-SNAPSHOT

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Unable to subscribe to Salesforce Platform Event with camel-salesforce-3.4.0-SNAPSHOT

Anne Nguyen
Hi All,

I'm trying to subscribe to a Platform Event in Salesforce:

from("salesforce:event/Moodle__e?replayId=-1")
    .streamCaching()
    .process( exchange ->{
        PlatformEvent event = exchange.getIn().getBody(PlatformEvent.class);
        System.out.println("*********Receive Event : " +
event.getEventData().toString());
   });

However receive the following error:

2020-05-21 14:23:35.061  WARN 3472 --- [ent@3cad68df-20]
o.a.c.c.salesforce.SalesforceConsumer    : Error subscribing to
event/Moodle__e: {httpCode=500}. Caused by:
[org.apache.camel.component.salesforce.api.SalesforceException - Error
subscribing to event/Moodle__e: {httpCode=500}]

org.apache.camel.component.salesforce.api.SalesforceException: Error
subscribing to event/Moodle__e: {httpCode=500}
        at org.apache.camel.component.salesforce.internal.streaming.SubscriptionHelper$7.onMessage(SubscriptionHelper.java:446)
[camel-salesforce-3.4.0-SNAPSHOT.jar:3.4.0-SNAPSHOT]
        at org.cometd.common.AbstractClientSession$AbstractSessionChannel.notifyOnMessage(AbstractClientSession.java:583)
[cometd-java-common-4.0.4.jar:4.0.4]
        at org.cometd.common.AbstractClientSession$AbstractSessionChannel.notifyMessageListeners(AbstractClientSession.java:568)
[cometd-java-common-4.0.4.jar:4.0.4]
        at org.cometd.common.AbstractClientSession.notifyListeners(AbstractClientSession.java:308)
[cometd-java-common-4.0.4.jar:4.0.4]
        at org.cometd.common.AbstractClientSession.lambda$receive$4(AbstractClientSession.java:269)
[cometd-java-common-4.0.4.jar:4.0.4]
        at org.cometd.bayeux.Promise$2.succeed(Promise.java:103)
~[bayeux-api-4.0.4.jar:4.0.4]
        at org.cometd.common.AsyncFoldLeft$AbstractLoop.run(AsyncFoldLeft.java:199)
~[cometd-java-common-4.0.4.jar:4.0.4]
        at org.cometd.common.AsyncFoldLeft.run(AsyncFoldLeft.java:93)
~[cometd-java-common-4.0.4.jar:4.0.4]
        at org.cometd.common.AbstractClientSession.extendIncoming(AbstractClientSession.java:103)
[cometd-java-common-4.0.4.jar:4.0.4]
        at org.cometd.common.AbstractClientSession.receive(AbstractClientSession.java:263)
[cometd-java-common-4.0.4.jar:4.0.4]
        at org.cometd.client.BayeuxClient.failMessage(BayeuxClient.java:810)
~[cometd-java-client-4.0.4.jar:4.0.4]
        at org.cometd.client.BayeuxClient.messageFailure(BayeuxClient.java:806)
~[cometd-java-client-4.0.4.jar:4.0.4]
        at org.cometd.client.BayeuxClient.messagesFailure(BayeuxClient.java:659)
~[cometd-java-client-4.0.4.jar:4.0.4]
        at org.cometd.client.BayeuxClient$MessageTransportListener.onFailure(BayeuxClient.java:1266)
~[cometd-java-client-4.0.4.jar:4.0.4]
        at org.cometd.client.transport.LongPollingTransport$2.onComplete(LongPollingTransport.java:255)
~[cometd-java-client-4.0.4.jar:4.0.4]
        at org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:218)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:210)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.client.HttpReceiver.terminateResponse(HttpReceiver.java:543)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.client.HttpReceiver.terminateResponse(HttpReceiver.java:523)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.client.HttpReceiver.responseSuccess(HttpReceiver.java:486)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.client.http.HttpReceiverOverHTTP.messageComplete(HttpReceiverOverHTTP.java:326)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.http.HttpParser.parseFields(HttpParser.java:1161)
~[jetty-http-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:1534)
~[jetty-http-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.client.http.HttpReceiverOverHTTP.parse(HttpReceiverOverHTTP.java:200)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.client.http.HttpReceiverOverHTTP.process(HttpReceiverOverHTTP.java:141)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.client.http.HttpReceiverOverHTTP.receive(HttpReceiverOverHTTP.java:75)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.client.http.HttpChannelOverHTTP.receive(HttpChannelOverHTTP.java:133)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.client.http.HttpConnectionOverHTTP.onFillable(HttpConnectionOverHTTP.java:156)
~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:543)
~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:398)
~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:161)
~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375)
~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
        at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
        at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_251]
Caused by: org.cometd.common.TransportException: {httpCode=500}
        at org.cometd.client.transport.LongPollingTransport$2.onComplete(LongPollingTransport.java:254)
~[cometd-java-client-4.0.4.jar:4.0.4]
        ... 28 common frames omitted

I have successfully tested this event with other client app. I also
tris this suggested solution to turn off the Salesforce Mobile
Notification but still got the same error:

https://salesforce.stackexchange.com/questions/55728/403unknown-client-error-when-connecting-to-streaming-api-push-topic/207824#207824

Has anyone successfully subscribed to Salesforce Platform Event or has
encountered this error and know how to workaround?

Many Thanks
Anne
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Re: Unable to subscribe to Salesforce Platform Event with camel-salesforce-3.4.0-SNAPSHOT

Otavio Rodolfo Piske
Hello,

I think it might be related to the Salesforce API version. Camel uses 34.0
by default and I think you need, at least, 37.0. I noticed a similar
condition when working on the Salesforce test cases for the Camel Kafka
Connector.

I am quoting below the comment I added to the test case as to why this
seemed to happen on that occasion:

/*
* NOTE: this test requires SalesForce API >= than 37.0. Camel defaults to
* API version 34.0.
*
* The reason is that on older versions of this API did not return the list
* of supported extensions during the hand-shake (ie.:
* ext={replay=true, payload.format=true}). This behavior causes the rcvMeta
* handler on the CometDReplayExtension class in the salesforce component to
* consider the replay extension as "not supported".
*
* Subsequently, when using the /meta/subscribe channel to subscribe to
* account change events on /data/AccountChangeEvent, the replay ID is not
* provided on the request message - and it is a required parameter. This
* leads to a situation where the Salesforce API server returns a plain
* HTTP error 500 without much details.
*/

I hope this helps somehow.

Kind regards


On Thu, May 21, 2020 at 8:56 AM Anne Nguyen <[hidden email]> wrote:

> Hi All,
>
> I'm trying to subscribe to a Platform Event in Salesforce:
>
> from("salesforce:event/Moodle__e?replayId=-1")
>     .streamCaching()
>     .process( exchange ->{
>         PlatformEvent event =
> exchange.getIn().getBody(PlatformEvent.class);
>         System.out.println("*********Receive Event : " +
> event.getEventData().toString());
>    });
>
> However receive the following error:
>
> 2020-05-21 14:23:35.061  WARN 3472 --- [ent@3cad68df-20]
> o.a.c.c.salesforce.SalesforceConsumer    : Error subscribing to
> event/Moodle__e: {httpCode=500}. Caused by:
> [org.apache.camel.component.salesforce.api.SalesforceException - Error
> subscribing to event/Moodle__e: {httpCode=500}]
>
> org.apache.camel.component.salesforce.api.SalesforceException: Error
> subscribing to event/Moodle__e: {httpCode=500}
>         at
> org.apache.camel.component.salesforce.internal.streaming.SubscriptionHelper$7.onMessage(SubscriptionHelper.java:446)
> [camel-salesforce-3.4.0-SNAPSHOT.jar:3.4.0-SNAPSHOT]
>         at
> org.cometd.common.AbstractClientSession$AbstractSessionChannel.notifyOnMessage(AbstractClientSession.java:583)
> [cometd-java-common-4.0.4.jar:4.0.4]
>         at
> org.cometd.common.AbstractClientSession$AbstractSessionChannel.notifyMessageListeners(AbstractClientSession.java:568)
> [cometd-java-common-4.0.4.jar:4.0.4]
>         at
> org.cometd.common.AbstractClientSession.notifyListeners(AbstractClientSession.java:308)
> [cometd-java-common-4.0.4.jar:4.0.4]
>         at
> org.cometd.common.AbstractClientSession.lambda$receive$4(AbstractClientSession.java:269)
> [cometd-java-common-4.0.4.jar:4.0.4]
>         at org.cometd.bayeux.Promise$2.succeed(Promise.java:103)
> ~[bayeux-api-4.0.4.jar:4.0.4]
>         at
> org.cometd.common.AsyncFoldLeft$AbstractLoop.run(AsyncFoldLeft.java:199)
> ~[cometd-java-common-4.0.4.jar:4.0.4]
>         at org.cometd.common.AsyncFoldLeft.run(AsyncFoldLeft.java:93)
> ~[cometd-java-common-4.0.4.jar:4.0.4]
>         at
> org.cometd.common.AbstractClientSession.extendIncoming(AbstractClientSession.java:103)
> [cometd-java-common-4.0.4.jar:4.0.4]
>         at
> org.cometd.common.AbstractClientSession.receive(AbstractClientSession.java:263)
> [cometd-java-common-4.0.4.jar:4.0.4]
>         at
> org.cometd.client.BayeuxClient.failMessage(BayeuxClient.java:810)
> ~[cometd-java-client-4.0.4.jar:4.0.4]
>         at
> org.cometd.client.BayeuxClient.messageFailure(BayeuxClient.java:806)
> ~[cometd-java-client-4.0.4.jar:4.0.4]
>         at
> org.cometd.client.BayeuxClient.messagesFailure(BayeuxClient.java:659)
> ~[cometd-java-client-4.0.4.jar:4.0.4]
>         at
> org.cometd.client.BayeuxClient$MessageTransportListener.onFailure(BayeuxClient.java:1266)
> ~[cometd-java-client-4.0.4.jar:4.0.4]
>         at
> org.cometd.client.transport.LongPollingTransport$2.onComplete(LongPollingTransport.java:255)
> ~[cometd-java-client-4.0.4.jar:4.0.4]
>         at
> org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:218)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:210)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.client.HttpReceiver.terminateResponse(HttpReceiver.java:543)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.client.HttpReceiver.terminateResponse(HttpReceiver.java:523)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.client.HttpReceiver.responseSuccess(HttpReceiver.java:486)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.client.http.HttpReceiverOverHTTP.messageComplete(HttpReceiverOverHTTP.java:326)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.http.HttpParser.parseFields(HttpParser.java:1161)
> ~[jetty-http-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:1534)
> ~[jetty-http-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.client.http.HttpReceiverOverHTTP.parse(HttpReceiverOverHTTP.java:200)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.client.http.HttpReceiverOverHTTP.process(HttpReceiverOverHTTP.java:141)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.client.http.HttpReceiverOverHTTP.receive(HttpReceiverOverHTTP.java:75)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.client.http.HttpChannelOverHTTP.receive(HttpChannelOverHTTP.java:133)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.client.http.HttpConnectionOverHTTP.onFillable(HttpConnectionOverHTTP.java:156)
> ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at org.eclipse.jetty.io
> .AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
> ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at org.eclipse.jetty.io
> .FillInterest.fillable(FillInterest.java:103)
> ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:543)
> ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:398)
> ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:161)
> ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at org.eclipse.jetty.io
> .FillInterest.fillable(FillInterest.java:103)
> ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at org.eclipse.jetty.io
> .ChannelEndPoint$2.run(ChannelEndPoint.java:117)
> ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
> ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
> ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
> ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
> ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375)
> ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
> ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at
> org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
> ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
>         at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_251]
> Caused by: org.cometd.common.TransportException: {httpCode=500}
>         at
> org.cometd.client.transport.LongPollingTransport$2.onComplete(LongPollingTransport.java:254)
> ~[cometd-java-client-4.0.4.jar:4.0.4]
>         ... 28 common frames omitted
>
> I have successfully tested this event with other client app. I also
> tris this suggested solution to turn off the Salesforce Mobile
> Notification but still got the same error:
>
>
> https://salesforce.stackexchange.com/questions/55728/403unknown-client-error-when-connecting-to-streaming-api-push-topic/207824#207824
>
> Has anyone successfully subscribed to Salesforce Platform Event or has
> encountered this error and know how to workaround?
>
> Many Thanks
> Anne
>


--
Otavio R. Piske
http://orpiske.net
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Re: Unable to subscribe to Salesforce Platform Event with camel-salesforce-3.4.0-SNAPSHOT

Anne Nguyen
Thanks Otavio! After setting the API to 48 I can now receive the Event.

On Thu, May 21, 2020 at 8:29 PM Otavio Rodolfo Piske
<[hidden email]> wrote:

>
> Hello,
>
> I think it might be related to the Salesforce API version. Camel uses 34.0
> by default and I think you need, at least, 37.0. I noticed a similar
> condition when working on the Salesforce test cases for the Camel Kafka
> Connector.
>
> I am quoting below the comment I added to the test case as to why this
> seemed to happen on that occasion:
>
> /*
> * NOTE: this test requires SalesForce API >= than 37.0. Camel defaults to
> * API version 34.0.
> *
> * The reason is that on older versions of this API did not return the list
> * of supported extensions during the hand-shake (ie.:
> * ext={replay=true, payload.format=true}). This behavior causes the rcvMeta
> * handler on the CometDReplayExtension class in the salesforce component to
> * consider the replay extension as "not supported".
> *
> * Subsequently, when using the /meta/subscribe channel to subscribe to
> * account change events on /data/AccountChangeEvent, the replay ID is not
> * provided on the request message - and it is a required parameter. This
> * leads to a situation where the Salesforce API server returns a plain
> * HTTP error 500 without much details.
> */
>
> I hope this helps somehow.
>
> Kind regards
>
>
> On Thu, May 21, 2020 at 8:56 AM Anne Nguyen <[hidden email]> wrote:
>
> > Hi All,
> >
> > I'm trying to subscribe to a Platform Event in Salesforce:
> >
> > from("salesforce:event/Moodle__e?replayId=-1")
> >     .streamCaching()
> >     .process( exchange ->{
> >         PlatformEvent event =
> > exchange.getIn().getBody(PlatformEvent.class);
> >         System.out.println("*********Receive Event : " +
> > event.getEventData().toString());
> >    });
> >
> > However receive the following error:
> >
> > 2020-05-21 14:23:35.061  WARN 3472 --- [ent@3cad68df-20]
> > o.a.c.c.salesforce.SalesforceConsumer    : Error subscribing to
> > event/Moodle__e: {httpCode=500}. Caused by:
> > [org.apache.camel.component.salesforce.api.SalesforceException - Error
> > subscribing to event/Moodle__e: {httpCode=500}]
> >
> > org.apache.camel.component.salesforce.api.SalesforceException: Error
> > subscribing to event/Moodle__e: {httpCode=500}
> >         at
> > org.apache.camel.component.salesforce.internal.streaming.SubscriptionHelper$7.onMessage(SubscriptionHelper.java:446)
> > [camel-salesforce-3.4.0-SNAPSHOT.jar:3.4.0-SNAPSHOT]
> >         at
> > org.cometd.common.AbstractClientSession$AbstractSessionChannel.notifyOnMessage(AbstractClientSession.java:583)
> > [cometd-java-common-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.common.AbstractClientSession$AbstractSessionChannel.notifyMessageListeners(AbstractClientSession.java:568)
> > [cometd-java-common-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.common.AbstractClientSession.notifyListeners(AbstractClientSession.java:308)
> > [cometd-java-common-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.common.AbstractClientSession.lambda$receive$4(AbstractClientSession.java:269)
> > [cometd-java-common-4.0.4.jar:4.0.4]
> >         at org.cometd.bayeux.Promise$2.succeed(Promise.java:103)
> > ~[bayeux-api-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.common.AsyncFoldLeft$AbstractLoop.run(AsyncFoldLeft.java:199)
> > ~[cometd-java-common-4.0.4.jar:4.0.4]
> >         at org.cometd.common.AsyncFoldLeft.run(AsyncFoldLeft.java:93)
> > ~[cometd-java-common-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.common.AbstractClientSession.extendIncoming(AbstractClientSession.java:103)
> > [cometd-java-common-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.common.AbstractClientSession.receive(AbstractClientSession.java:263)
> > [cometd-java-common-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.client.BayeuxClient.failMessage(BayeuxClient.java:810)
> > ~[cometd-java-client-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.client.BayeuxClient.messageFailure(BayeuxClient.java:806)
> > ~[cometd-java-client-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.client.BayeuxClient.messagesFailure(BayeuxClient.java:659)
> > ~[cometd-java-client-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.client.BayeuxClient$MessageTransportListener.onFailure(BayeuxClient.java:1266)
> > ~[cometd-java-client-4.0.4.jar:4.0.4]
> >         at
> > org.cometd.client.transport.LongPollingTransport$2.onComplete(LongPollingTransport.java:255)
> > ~[cometd-java-client-4.0.4.jar:4.0.4]
> >         at
> > org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:218)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:210)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.client.HttpReceiver.terminateResponse(HttpReceiver.java:543)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.client.HttpReceiver.terminateResponse(HttpReceiver.java:523)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.client.HttpReceiver.responseSuccess(HttpReceiver.java:486)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.client.http.HttpReceiverOverHTTP.messageComplete(HttpReceiverOverHTTP.java:326)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.http.HttpParser.parseFields(HttpParser.java:1161)
> > ~[jetty-http-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:1534)
> > ~[jetty-http-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.client.http.HttpReceiverOverHTTP.parse(HttpReceiverOverHTTP.java:200)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.client.http.HttpReceiverOverHTTP.process(HttpReceiverOverHTTP.java:141)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.client.http.HttpReceiverOverHTTP.receive(HttpReceiverOverHTTP.java:75)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.client.http.HttpChannelOverHTTP.receive(HttpChannelOverHTTP.java:133)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.client.http.HttpConnectionOverHTTP.onFillable(HttpConnectionOverHTTP.java:156)
> > ~[jetty-client-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at org.eclipse.jetty.io
> > .AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
> > ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at org.eclipse.jetty.io
> > .FillInterest.fillable(FillInterest.java:103)
> > ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:543)
> > ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:398)
> > ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:161)
> > ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at org.eclipse.jetty.io
> > .FillInterest.fillable(FillInterest.java:103)
> > ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at org.eclipse.jetty.io
> > .ChannelEndPoint$2.run(ChannelEndPoint.java:117)
> > ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
> > ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
> > ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
> > ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
> > ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375)
> > ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
> > ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at
> > org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
> > ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
> >         at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_251]
> > Caused by: org.cometd.common.TransportException: {httpCode=500}
> >         at
> > org.cometd.client.transport.LongPollingTransport$2.onComplete(LongPollingTransport.java:254)
> > ~[cometd-java-client-4.0.4.jar:4.0.4]
> >         ... 28 common frames omitted
> >
> > I have successfully tested this event with other client app. I also
> > tris this suggested solution to turn off the Salesforce Mobile
> > Notification but still got the same error:
> >
> >
> > https://salesforce.stackexchange.com/questions/55728/403unknown-client-error-when-connecting-to-streaming-api-push-topic/207824#207824
> >
> > Has anyone successfully subscribed to Salesforce Platform Event or has
> > encountered this error and know how to workaround?
> >
> > Many Thanks
> > Anne
> >
>
>
> --
> Otavio R. Piske
> http://orpiske.net