Merge pull request #175 from rabbitmq/open-and-give-credits

Transition to open state before giving credits

Author: acogoluegnes

src/main/java/com/rabbitmq/client/amqp/impl/AmqpConsumer.java

@@ -130,14 +130,14 @@ final class AmqpConsumer extends ResourceBase implements Consumer {
             this.nativeCloseHandler);
     this.initStateFromNativeReceiver(this.nativeReceiver);
     this.metricsCollector = this.connection.metricsCollector();
+    this.state(OPEN);
     try {
       this.nativeReceiver.addCredit(this.initialCredits);
     } catch (ClientException e) {
       AmqpException ex = ExceptionUtils.convert(e);
       this.close(ex);
       throw ex;
     }
-    this.state(OPEN);
     this.metricsCollector.openConsumer();
   }