B4J Question Automatic Reconnecting WebSocket, with a server down

[Carlos Mojica]

I follow the example in

https://www.b4x.com/android/forum/threads/server-automatic-reconnecting-websocket.62054/#content

, everything works fine until the server get out of line, my client websocket rise an error that I cannot cath, the client program continues working, but the log window get full of information about this error, how can i cath it?:

java.net.ConnectException: Connection refused: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.eclipse.jetty.io.SelectorManager.doFinishConnect(SelectorManager.java:351)
at org.eclipse.jetty.io.ManagedSelector.processConnect(ManagedSelector.java:185)
at org.eclipse.jetty.io.ManagedSelector.access$1200(ManagedSelector.java:60)
at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.processSelected(ManagedSelector.java:455)
at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:325)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produceTask(EatWhatYouKill.java:357)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:181)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:132)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:760)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:678)
at java.lang.Thread.run(Thread.java:748)
org.eclipse.jetty.websocket.api.UpgradeException: 0 null
at org.eclipse.jetty.websocket.client.WebSocketUpgradeRequest.onComplete(WebSocketUpgradeRequest.java:522)
at org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:193)
at org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:185)
at org.eclipse.jetty.client.HttpExchange.notifyFailureComplete(HttpExchange.java:269)
at org.eclipse.jetty.client.HttpExchange.abort(HttpExchange.java:240)
at org.eclipse.jetty.client.HttpConversation.abort(HttpConversation.java:141)
at org.eclipse.jetty.client.HttpRequest.abort(HttpRequest.java:767)
at org.eclipse.jetty.client.HttpDestination.abort(HttpDestination.java:462)
at org.eclipse.jetty.client.HttpDestination.failed(HttpDestination.java:235)
at org.eclipse.jetty.client.AbstractConnectionPool$1.failed(AbstractConnectionPool.java:141)
at org.eclipse.jetty.util.Promise$Wrapper.failed(Promise.java:136)
at org.eclipse.jetty.client.HttpClient$1$1.failed(HttpClient.java:605)
at org.eclipse.jetty.client.AbstractConnectorHttpClientTransport.connectFailed(AbstractConnectorHttpClientTransport.java:138)
at org.eclipse.jetty.client.AbstractConnectorHttpClientTransport$ClientSelectorManager.connectionFailed(AbstractConnectorHttpClientTransport.java:183)
at org.eclipse.jetty.io.ManagedSelector$Connect.failed(ManagedSelector.java:729)
at org.eclipse.jetty.io.ManagedSelector.processConnect(ManagedSelector.java:207)
at org.eclipse.jetty.io.ManagedSelector.access$1200(ManagedSelector.java:60)
at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.processSelected(ManagedSelector.java:455)
at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:325)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produceTask(EatWhatYouKill.java:357)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:181)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:132)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:760)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:678)
at java.lang.Thread.run(Thread.java:748)
java.util.concurrent.ExecutionException: java.net.ConnectException: Connection refused: no further information
WebSocket Closed: Connection refused: no further information
at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)
at anywhersoftware.b4j.objects.WebSocketClientWrapper.Close(WebSocketClientWrapper.java:76)
at anywhersoftware.b4j.objects.WebSocketClientWrapper$WSHandler.onWebSocketError(WebSocketClientWrapper.java:118)
at org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onError(JettyListenerEventDriver.java:112)
at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingError(AbstractEventDriver.java:96)
at org.eclipse.jetty.websocket.client.WebSocketUpgradeRequest.handleException(WebSocketUpgradeRequest.java:528)
at org.eclipse.jetty.websocket.client.WebSocketUpgradeRequest.onComplete(WebSocketUpgradeRequest.java:522)
at org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:193)
at org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:185)
at org.eclipse.jetty.client.HttpExchange.notifyFailureComplete(HttpExchange.java:269)
at org.eclipse.jetty.client.HttpExchange.abort(HttpExchange.java:240)
at org.eclipse.jetty.client.HttpConversation.abort(HttpConversation.java:141)
at org.eclipse.jetty.client.HttpRequest.abort(HttpRequest.java:767)
at org.eclipse.jetty.client.HttpDestination.abort(HttpDestination.java:462)
at org.eclipse.jetty.client.HttpDestination.failed(HttpDestination.java:235)
at org.eclipse.jetty.client.AbstractConnectionPool$1.failed(AbstractConnectionPool.java:141)
at org.eclipse.jetty.util.Promise$Wrapper.failed(Promise.java:136)
at org.eclipse.jetty.client.HttpClient$1$1.failed(HttpClient.java:605)
at org.eclipse.jetty.client.AbstractConnectorHttpClientTransport.connectFailed(AbstractConnectorHttpClientTransport.java:138)
at org.eclipse.jetty.client.AbstractConnectorHttpClientTransport$ClientSelectorManager.connectionFailed(AbstractConnectorHttpClientTransport.java:183)
at org.eclipse.jetty.io.ManagedSelector$Connect.failed(ManagedSelector.java:729)
at org.eclipse.jetty.io.ManagedSelector.processConnect(ManagedSelector.java:207)
at org.eclipse.jetty.io.ManagedSelector.access$1200(ManagedSelector.java:60)
at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.processSelected(ManagedSelector.java:455)
at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:325)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produceTask(EatWhatYouKill.java:357)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:181)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:132)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:760)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:678)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.ConnectException: Connection refused: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.eclipse.jetty.io.SelectorManager.doFinishConnect(SelectorManager.java:351)
at org.eclipse.jetty.io.ManagedSelector.processConnect(ManagedSelector.java:185)
... 10 more

 

[Erel]

Download the attached version (1.01) and copy it to the internal libraries folder.

These errors should only be logged in debug mode.