Use same state value in condition and error message

Author: acogoluegnes

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

@@ -43,7 +43,7 @@ protected void checkOpen() {
       throw new AmqpException.AmqpResourceClosedException("Resource is closed");
     } else if (state != OPEN) {
       throw new AmqpException.AmqpResourceInvalidStateException(
-          "Resource is not open, current state is %s", this.state.get().name());
+          "Resource is not open, current state is %s", state.name());
     }
   }
 

src/test/java/com/rabbitmq/client/amqp/impl/AmqpConsumerTest.java

@@ -54,6 +54,7 @@ void init(TestInfo info) {
 
   @AfterEach
   void tearDown() {
+    waitAtMost(Duration.ofSeconds(5), () -> ((ResourceBase) connection).state() == OPEN);
     connection.management().queueDeletion().delete(this.q);
   }